{"title":"Transfer Case \u003e Gaskets and Sealing Systems","description":"\u003cp\u003eTransfer case gaskets and seals prevent fluid loss at every rotating shaft and mating surface in your 4WD or AWD drivetrain. This category covers output shaft seals (the most commonly replaced item), input and main shaft seals, shift and selector shaft seals, adapter gaskets, extension housing seals, and low-volume specialty seals like the PTO shaft seal and actuator seal. Most fail gradually — lip seals harden and crack with age or heat cycles, while gaskets can weep after a fluid change disturbs old sealant. Transfer case fluid runs hot and thin, so even a minor leak accelerates wear on internal components. When buying, match the seal OD, ID, and width exactly — a 1–2mm mismatch causes immediate leakback. OEM seals from Timken, National, or your vehicle manufacturer are the safest fit; premium aftermarket options in PTFE or Viton hold up better under high heat than standard nitrile rubber, especially on trucks that see frequent towing or off-road use.\u003c\/p\u003e\n\n\u003ch3\u003eSigns you need replacement\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFluid puddle or wet film beneath the transfer case.\u003c\/strong\u003e A reddish or amber spot on the driveway — especially centered under the vehicle — typically points to an output or input shaft seal failure. The output shaft seals are the most common source since they're exposed to the most rotational load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisible oil coating on the driveshaft yoke or output flange.\u003c\/strong\u003e If the U-joint area looks oily or the companion flange seal shows a dark residue ring, the seal lip has worn past its sealing surface and needs replacement before fluid level drops low enough to cause gear damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransfer case grinding, whining, or rough shifting.\u003c\/strong\u003e Low fluid from a slow seal leak starves the internal chain, gears, and bearings of lubrication. If you're chasing a drivetrain noise, always check fluid level and condition before assuming the problem is mechanical.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDifficulty engaging or disengaging 4WD.\u003c\/strong\u003e A leaking shift shaft or selector shaft seal can allow gear oil to contaminate the actuator or linkage area, causing sticky or inconsistent mode selection — particularly common on electronically-actuated transfer cases.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFluid seeping at the transmission-to-transfer case joint.\u003c\/strong\u003e A failed adapter gasket or adapter seal will leak at the case mating surface rather than around a shaft. This is more common after a transfer case removal and reinstall if the old gasket was reused or the surface wasn't properly cleaned.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow often do transfer case seals need to be replaced?\u003c\/strong\u003e\n  There's no fixed interval — most seals last 100,000–150,000 miles under normal conditions, but heat cycling, off-road abuse, or infrequent fluid changes accelerate lip seal degradation. It's smart practice to inspect seals any time you drain and refill transfer case fluid, which should happen every 30,000–60,000 miles depending on manufacturer specs.\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eAre OEM transfer case seals worth the premium over aftermarket?\u003c\/strong\u003e\n  For shaft seals, OEM or OEM-equivalent brands like National, Timken, or SKF are the better call — exact dimensional tolerances matter, and these manufacturers supply many OEM lines anyway. Generic no-brand seals frequently fail early. For gaskets, a quality aftermarket option using multi-layer steel or rubber-coated material is generally fine, since they're not under rotational stress.\u003c\/li\u003e\n\n  \u003cli\u003e\n\u003cstrong\u003eWhat else should I replace when doing an output shaft seal?\u003c\/strong\u003e\n  While you have the driveshaft dropped and the yoke off, replace both output shaft seals at the same time — front and rear — since they're the same age and the extra seal costs only a few dollars. Also inspect the slip yoke or companion flange for scoring; a grooved shaft surface will destroy a new seal within a few thousand miles and may require a speedi-sleeve repair collar.\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"elring-469-120-transfer-case-input-shaft-seal","title":"Elring 469.120 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of Elring Transfer Case Input Shaft Seal 469.120\u003c\/h2\u003e\u003cp\u003eThe Elring Transfer Case Input Shaft Seal 469.120 is engineered for precise fitment in select Audi and Volkswagen models. Designed to maintain optimal sealing performance, this component helps protect your transfer case from contaminants and fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 31.0 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 52.0 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 8 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: ACM (polyacrylate) for durability and resistance\u003c\/li\u003e\n\u003cli\u003eRadial shaft seal design: AW\u003c\/li\u003e\n\u003cli\u003eSwirl type: WD\u003c\/li\u003e\n\u003cli\u003eDust cover: Without dust lip\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal features an ACM (polyacrylate) elastomer, known for its resistance to heat, oil, and aging, making it suitable for demanding automotive environments. The radial shaft seal design AW ensures effective sealing around the rotating shaft, while the WD swirl type enhances fluid retention and reduces leakage. With an inside diameter of 31.0 mm and an outside diameter of 52.0 mm, the seal fits precisely to maintain transfer case integrity. The 8 mm height dimension supports proper installation depth without interference.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis Elring part number 469.120 is compatible with various Audi and Volkswagen models, including the Audi RS Q3, Volkswagen Tiguan, Tiguan Limited, TT Quattro, and TT RS Quattro. It is specifically designed for the transfer case input shaft, ensuring reliable sealing performance in these all-wheel-drive systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks\u003c\/li\u003e\n\u003cli\u003eProtects against dirt and debris ingress\u003c\/li\u003e\n\u003cli\u003eMaintains transfer case pressure and lubrication\u003c\/li\u003e\n\u003cli\u003eReduces wear on input shaft components\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Elring 469.120 transfer case input shaft seal, ensure the shaft and housing surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Avoid damaging the sealing lip during installation. Verify the seal orientation matches the dust cover specification (without dust lip) to ensure proper function.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eElring transfer case seals are manufactured to meet OEM standards for fit and function. The use of ACM material provides long-lasting resistance to heat and oil exposure. While specific warranty terms may vary, Elring products typically come with a limited warranty against manufacturing defects, supporting reliability in your Audi or Volkswagen transfer case maintenance.\u003c\/p\u003e","brand":"Elring","offers":[{"title":"Default Title","offer_id":43411068027061,"sku":"DTWD-469.120","price":15.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/EL_469120_Fro.jpg?v=1774730550"},{"product_id":"national-2287-transfer-case-shift-shaft-seal","title":"National 2287 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Shift Shaft Seal 2287\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Shift Shaft Seal 2287 is designed to provide reliable sealing performance for transfer cases in select Chevrolet, Dodge, Ford, and GMC vehicles. Engineered with nitrile material, this oil seal ensures durability and effective protection against leaks in models such as the Chevrolet Blazer, Ford F-150, and Dodge Ramcharger.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.750 inch (19.05 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.254 inch (31.85 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.280 inch (7.11 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 1.250 inch (31.75 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 2287, series 2000, type 274\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case shift shaft seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and fuels. The seal’s dimensions include a 0.750 inch inside diameter to fit the shaft precisely, and an outside diameter of 1.254 inches to match the housing bore of 1.250 inches, ensuring a tight, leak-proof fit. With a thickness of 0.280 inches, the seal maintains structural integrity under typical transfer case operating conditions. The part is categorized under National’s 2000 series, type 274, indicating its specific design for transfer case applications.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis National transfer case shift shaft seal 2287 is compatible with a range of trucks and SUVs, including Chevrolet Blazer, K5 Blazer, K10, K20, K30, and their Suburban variants; Ford Bronco, F-100, F-150, F-250, and F-350; Dodge Ramcharger and V30; as well as GMC Jimmy, K1500, K2500, K3500, W100, W250, and W350 models. It is specifically designed to maintain the integrity of the transfer case shift shaft, preventing oil leaks and contamination.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case shift shaft area\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage transfer case components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the shift shaft and surrounding parts\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National transfer case shift shaft seal 2287, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the nitrile material. Verify the shaft diameter matches the 0.750 inch specification for a proper fit. Lubricate the seal lip lightly with clean transfer case oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for transfer case disassembly and reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The nitrile material provides resistance to oil and wear, contributing to long service life. Part number 2287 is part of the 2000 series, reflecting consistent quality control. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448178573493,"sku":"BCZK-2287","price":10.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_2287_Fro_d89c2151-3d97-47bb-b985-92169bf98279.jpg?v=1774734504"},{"product_id":"national-3946-transfer-case-output-shaft-seal","title":"National 3946 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eNational 3946 Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 3946 transfer case output shaft seal is engineered to provide reliable sealing performance for a range of trucks and SUVs. Designed with durable nitrile material and a bi-directional lip design, this oil seal helps maintain proper lubrication and prevent leaks in transfer cases of popular vehicles like the Chevrolet Silverado, Ford F-150, and Jeep Grand Cherokee.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.875 inches (47.63 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.754 inches (69.95 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.000 inches (76.2 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.485 inches (12.319 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile with Redicoat coating\u003c\/li\u003e\n\u003cli\u003eBi-directional helix lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore of 2.750 inches (69.85 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 3946, Series 3000, Type 86\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 3946 transfer case output shaft seal is constructed from high-quality nitrile material, known for its resistance to oil, heat, and wear. The seal features a bi-directional helix lip design that ensures effective sealing against contaminants and fluid leakage in both rotational directions. Its Redicoat finish enhances durability and corrosion resistance, extending the service life of the seal. With precise dimensions including a 1.875-inch inside diameter and a 2.754-inch outside diameter, this seal fits securely within the transfer case housing bore of 2.750 inches, providing a tight, reliable seal for the output shaft.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a wide range of makes and models, including Chevrolet Silverado 1500 and 2500, Ford F-150 and F-350, Jeep Grand Cherokee and Wrangler, Dodge Ram 1500 and 2500, GMC Yukon, and more. It is designed to meet the sealing requirements of transfer cases in trucks and SUVs from Chevrolet, Chrysler, Dodge, Ford, GMC, Hummer, Jeep, Lincoln, Mitsubishi, and Ram.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 3946 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage internal components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for transfer case longevity\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the bi-directional lip design for optimal performance\u003c\/li\u003e\n\u003cli\u003eCheck for proper fitment with the 1.875-inch shaft diameter and 2.750-inch housing bore\u003c\/li\u003e\n\u003cli\u003eApply a light coating of compatible lubricant on the seal lip before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational's 3946 transfer case output shaft seal is manufactured to meet industry standards for durability and performance. The use of nitrile material and Redicoat coating ensures resistance to oil and environmental factors. This part is part of National's Series 3000, known for consistent quality in gaskets and sealing systems. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448189878453,"sku":"BCZK-3946","price":20.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_3946_Fro.jpg?v=1774734516"},{"product_id":"national-4370n-transfer-case-output-shaft-seal","title":"National 4370N Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational 4370N Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 4370N transfer case output shaft seal is engineered to provide reliable sealing performance for select Dodge and Jeep vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.503 inches (38.180 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.383 inches (60.530 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 2.640 inches (67.056 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.420 inches (10.670 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate with Redicoat treatment\u003c\/li\u003e\n\u003cli\u003eHelix type: Counter-clockwise spiral lip design\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 2.376 inches (60.350 mm)\u003c\/li\u003e\n\u003cli\u003eSeries: 4000, Type: 88\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 4370N transfer case output shaft seal is specifically designed for transfer cases in Dodge and Jeep models including Cherokee, CJ7, Comanche, Dakota, Durango, Grand Cherokee, Grand Wagoneer, Wagoneer, and Wrangler. Constructed from polyacrylate material, this oil seal offers resistance to heat and wear, ensuring a long service life. The counter-clockwise spiral lip design enhances sealing efficiency by directing fluid back into the transfer case, reducing the risk of leaks. The Redicoat treatment further improves durability and corrosion resistance.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis output shaft seal is compatible with transfer cases found in the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDodge Cherokee, Dakota, Durango\u003c\/li\u003e\n\u003cli\u003eJeep CJ7, Comanche, Grand Cherokee, Grand Wagoneer, Wagoneer, Wrangler\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by the 4370N Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks around the output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the counter-clockwise spiral lip for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility with the 4370N seal\u003c\/li\u003e\n\u003cli\u003eApply a light coat of transfer case fluid to the seal lip before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational's 4370N transfer case output shaft seal is manufactured to meet industry standards for durability and performance. The polyacrylate material and Redicoat treatment provide enhanced resistance to wear and corrosion. This product is part of National's 4000 series, known for consistent quality in sealing systems. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448197578933,"sku":"BCZK-4370N","price":15.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_4370N_Fro.jpg?v=1774734521"},{"product_id":"national-221510-transfer-case-shift-shaft-seal","title":"National 221510 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Shift Shaft Seal 221510\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Shift Shaft Seal 221510 is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Geo, Lexus, and Toyota vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain proper fluid retention and prevents contamination in the transfer case assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.591 inch (15.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 0.994 inch (25.250 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.236 inch (6.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 0.984 inch (25.000 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 221510\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case shift shaft seal (part number 221510) is manufactured from polyacrylate, a material known for its resistance to heat, oil, and wear. The seal features an inside diameter of 0.591 inch (15 mm) and an outside diameter of 0.994 inch (25.25 mm), with a thickness of 0.236 inch (6 mm). These precise measurements ensure a secure fit within the transfer case housing bore of 0.984 inch (25 mm), providing an effective barrier against oil leaks and external contaminants.\u003c\/p\u003e\u003cp\u003eCompatible with a range of vehicles including Chevrolet Nova, Pickup, and Prizm; Geo Prizm and Paseo; Lexus GX460, GX470, and RX models; and Toyota 4Runner, Camry, Celica, Corolla, FJ Cruiser, MR2, Sequoia, T100, Tacoma, Tercel, and Tundra, this seal supports proper transfer case operation across multiple platforms.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case shift shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can cause premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains transfer case fluid integrity for smooth shifting\u003c\/li\u003e\n\u003cli\u003eAddresses seal degradation due to heat and friction\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs related to fluid loss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the shaft diameter matches the seal’s inside diameter (0.591 inch \/ 15 mm)\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eInspect the seal lip for damage prior to installation to ensure proper sealing\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for transfer case disassembly and reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational’s transfer case shift shaft seal 221510 is manufactured to meet industry standards for durability and performance. The polyacrylate material offers resistance to oil, heat, and wear, contributing to a longer service life. While specific warranty details may vary, National typically provides coverage against manufacturing defects to ensure customer confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448282120373,"sku":"BCZK-221510","price":16.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_221510_Fro.jpg?v=1774734606"},{"product_id":"national-223802-transfer-case-output-shaft-seal","title":"National 223802 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 223802\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 223802 is engineered to provide reliable sealing performance for select BMW, Lincoln, and Suzuki models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.496 inches (38.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.977 inches (50.220 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.315 inches (8.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate with clockwise-spiral lip design\u003c\/li\u003e\n\u003cli\u003eHousing bore compatibility: 1.969 inches (50.000 mm)\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003ePart number: 223802, Series 220000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Description and Material Details\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is constructed from polyacrylate, a material known for its resistance to heat, oil, and wear. The clockwise-spiral lip design improves sealing efficiency by directing fluid back into the transfer case, reducing the risk of leaks. The Redicoat treatment further enhances the seal’s durability by providing a protective coating that extends service life. With precise inside and outside diameters, this seal fits securely within the housing bore, ensuring a tight seal around the output shaft.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 223802 seal is compatible with a range of BMW models including the 320i, 323Ci, 325i, 328i, 330i, and Z3\/Z4 series. It also fits Lincoln Continental and Mark VII models, as well as Suzuki Samurai and X3\/X5 vehicles. This part is specifically designed for transfer case output shaft sealing, helping to maintain proper lubrication and prevent contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks\u003c\/li\u003e\n\u003cli\u003eReduces risk of shaft wear due to contamination\u003c\/li\u003e\n\u003cli\u003eMaintains transfer case pressure and lubrication\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs\u003c\/li\u003e\n\u003cli\u003eEnsures smooth drivetrain operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 223802 transfer case output shaft seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the sealing lip. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing performance. It is recommended to inspect the output shaft for wear or damage before installation and replace if necessary.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet strict quality standards, ensuring consistent dimensions and material properties. The 223802 seal undergoes rigorous testing for durability and sealing effectiveness. This product includes a limited warranty against defects in material and workmanship, providing confidence in its long-term performance when installed correctly.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448287854773,"sku":"BCZK-223802","price":15.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_223802_Fro_70ba1908-7fdf-4ae5-a605-ebcdd75796fb.jpg?v=1774734615"},{"product_id":"national-330385-transfer-case-shift-shaft-seal","title":"National 330385 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Shift Shaft Seal 330385\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Shift Shaft Seal 330385 is designed to provide reliable sealing performance for a variety of transfer case applications. Engineered with nitrile material, this oil seal ensures durability and resistance to wear, making it suitable for vehicles like Ford F-150, Chevrolet Silverado 1500, and Toyota Tundra.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.375 inch (9.53 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 0.754 inch (19.15 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.250 inch (6.35 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for oil resistance and durability\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes and models including Acura, Audi, Ford, Chevrolet, Toyota, and more\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case shift shaft seal (part number 330385) is part of the 330000 series, crafted from nitrile material known for its excellent oil resistance and mechanical strength. The seal features a precise inside diameter of 0.375 inches (9.53 mm) and an outside diameter of 0.754 inches (19.15 mm), with a thickness of 0.250 inches (6.35 mm). These dimensions ensure a tight fit within the housing bore of 0.750 inches (19.05 mm), providing effective sealing around the shift shaft to prevent oil leaks and contamination.\u003c\/p\u003e\u003cp\u003eDesigned for transfer case applications, this seal is compatible with a wide range of vehicles including Ford F-150, Chevrolet Silverado 1500, Toyota Tundra, and other models from Acura, Audi, Cadillac, Dodge, GMC, Hyundai, Land Rover, Mazda, Mercedes-Benz, and more. Its nitrile construction offers resistance to heat, oil, and wear, which is critical for maintaining transfer case integrity under demanding driving conditions.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case shift shaft\u003c\/li\u003e\n\u003cli\u003eProtects transfer case internals from dirt and debris contamination\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eReduces wear on the shift shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eHelps avoid transfer case shifting issues caused by seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part to maintain proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the shift shaft for wear or damage prior to installing the new seal\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip lightly with clean transfer case oil to ease installation and prevent dry running\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The 330385 shift shaft seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in the product's reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448295588021,"sku":"BCZK-330385","price":14.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_330385_Fro_6fc9f449-a28d-42f3-898a-c10407dd6c6e.jpg?v=1774734635"},{"product_id":"national-341022-transfer-case-oil-pump-housing-seal","title":"National 341022 Transfer Case Oil Pump Housing Seal","description":"\u003ch2\u003eOverview of National Transfer Case Oil Pump Housing Seal 341022\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Oil Pump Housing Seal 341022 is designed to provide reliable sealing performance for transfer cases in a variety of trucks and SUVs. Engineered with nitrile material, this oil seal ensures durability and resistance to wear, making it suitable for vehicles like Chevrolet Silverado 1500, Ford F-250 Super Duty, and Jeep Grand Cherokee.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 2.250 inches (57.150 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.636 inches (66.950 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.187 inches (4.750 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for enhanced oil resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 2.625 inches (66.680 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 341022 transfer case oil pump housing seal is manufactured from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and fluids. This seal features an inside diameter of 2.250 inches and an outside diameter of 2.636 inches, with a thickness of 0.187 inches, making it a precise fit for transfer case oil pump housings requiring these dimensions. The seal’s design helps maintain proper lubrication by preventing oil leaks and contamination within the transfer case assembly.\u003c\/p\u003e\u003cp\u003eThis part is part of National’s 340000 series, which focuses on gaskets and sealing systems engineered for transfer case applications. The seal’s robust nitrile construction supports long-term durability under the demanding conditions of off-road and heavy-duty use.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case oil pump housing seal 341022 is compatible with a wide range of makes and models, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Silverado 1500, 2500, 3500, Avalanche, Blazer, Suburban\u003c\/li\u003e\n\u003cli\u003eFord F-100, F-150, F-250 Super Duty, F-350 Super Duty, Excursion\u003c\/li\u003e\n\u003cli\u003eJeep Grand Cherokee, Cherokee, Wrangler, Wrangler JK\u003c\/li\u003e\n\u003cli\u003eRam 1500, 2500, 3500, Dakota, Durango\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case oil pump housing\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage transfer case components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for transfer case oil pump operation\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature wear of transfer case internal parts\u003c\/li\u003e\n\u003cli\u003eEnsures consistent transfer case performance under heavy load conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case oil pump housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore to avoid damage\u003c\/li\u003e\n\u003cli\u003eVerify the seal’s orientation matches the original part to maintain proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the shaft surface for wear or damage before installing the seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of compatible lubricant on the seal lip to ease installation and prevent initial dry running\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet OEM specifications for fit, form, and function. The 341022 oil pump housing seal undergoes rigorous quality control to ensure consistent sealing performance and durability. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448296407221,"sku":"BCZK-341022","price":19.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_341022_Fro.jpg?v=1774734638"},{"product_id":"national-450185-transfer-case-output-shaft-seal","title":"National 450185 Transfer Case Output Shaft Seal - Front or Rear Rearward","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 450185 transfer case output shaft seal is engineered to provide reliable sealing performance for select Chevrolet, Ford, GMC, and Jeep vehicles. Designed with durable nitrile material and precise dimensions, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.562 inches (39.670 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.506 inches (63.650 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.500 inches (12.700 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced corrosion protection\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case output shafts of 1.562 inches diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 450185 transfer case output shaft seal is part of the 450000 series, designed specifically for transfer case applications requiring a robust oil seal. Constructed from nitrile, this seal offers excellent resistance to petroleum-based fluids and maintains flexibility under varying temperatures. The seal’s precise inside diameter of 1.562 inches and outside diameter of 2.506 inches ensure a secure fit within the housing bore, which measures approximately 2.502 inches (63.550 mm). The 0.500-inch thickness provides a reliable barrier against fluid leakage, helping to protect the transfer case components from dirt and moisture intrusion.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of popular models, including Chevrolet Blazer, Ford Bronco, Jeep CJ5, Ford F-100, GMC Jimmy, Chevrolet K10 Suburban, GMC K20 Suburban, and Jeep Wagoneer. The part number 450185 is specifically designed to meet the sealing requirements of these vehicles’ transfer cases, ensuring proper fitment and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels\u003c\/li\u003e\n\u003cli\u003eProtects transfer case internals from dirt and debris contamination\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature transfer case wear due to fluid loss\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of output shaft components\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs caused by seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part to maintain proper sealing function\u003c\/li\u003e\n\u003cli\u003eCheck shaft diameter compatibility (1.562 inches) prior to installation\u003c\/li\u003e\n\u003cli\u003eInspect the seal for any damage or defects before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The nitrile material and Redicoat corrosion protection contribute to the seal’s longevity in demanding automotive environments. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the 450185 part number.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448297947317,"sku":"BCZK-450185","price":20.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_450185_Fro_9103a195-884f-4fa1-b204-39b827392601.jpg?v=1774734651"},{"product_id":"national-470682-transfer-case-output-shaft-seal","title":"National 470682 Transfer Case Output Shaft Seal - Front or Rear Rearward","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 470682\u003c\/h2\u003e\u003cp\u003eThe National 470682 transfer case output shaft seal is engineered to provide reliable sealing performance for select Chevrolet, Dodge, Ford, and GMC trucks. Designed specifically for models like the Chevrolet K3500 and Ford F-100, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.562 inches (39.670 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.627 inches (66.730 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.312 inches (7.920 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: durable nitrile compound\u003c\/li\u003e\n\u003cli\u003eRedicoat surface treatment for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 2.623 inches (66.620 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 470682, series 470000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and abrasion. The seal features a Redicoat coating that improves durability and reduces friction during operation. With precise dimensions including a 1.562-inch inside diameter and a 2.627-inch outside diameter, it fits securely within the housing bore of 2.623 inches, ensuring a tight seal around the output shaft. The 0.312-inch thickness provides adequate sealing surface to prevent fluid leakage under typical operating conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 470682 seal is compatible with transfer cases on various truck models, including Chevrolet K3500, Dodge W350, Ford F-100, and GMC V3500. It is designed for use in transfer case output shafts where maintaining fluid containment is critical for drivetrain performance and longevity.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks\u003c\/li\u003e\n\u003cli\u003eProtects against dirt and debris ingress\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of output shaft\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case damage due to contamination\u003c\/li\u003e\n\u003cli\u003eSupports smooth drivetrain operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 470682 transfer case output shaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without distortion. Verify the seal orientation matches the original part to maintain proper sealing function. Lubricate the sealing lip lightly with transfer case fluid before installation to reduce initial wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational manufactures the 470682 seal to meet OEM specifications, ensuring reliable fit and function. The part is a zero duplication item, guaranteeing authenticity and quality. While specific warranty details may vary, National typically backs their sealing products with limited warranties against manufacturing defects, providing confidence in durability and performance.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448299421877,"sku":"BCZK-470682","price":20.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_470682_Fro_ec133015-1c45-49a6-91e9-b285eed523ec.jpg?v=1774734657"},{"product_id":"national-471424-transfer-case-power-take-off-pto-shaft-seal","title":"National 471424 Transfer Case Power Take Off (PTO) Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case PTO Shaft Seal 471424\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Power Take Off (PTO) Shaft Seal, part number 471424, is designed for reliable sealing in transfer cases of select Buick, Cadillac, Chevrolet, Dodge, GMC, Oldsmobile, and Pontiac vehicles. Engineered with nitrile material and Redicoat technology, this oil seal ensures effective protection against leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 2.000 inches (50.8 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.627 inches (66.73 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.312 inches (7.92 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: durable nitrile rubber\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore of 2.623 inches (66.62 mm)\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case PTO shaft seal is part of the 470000 series and is specifically designed to maintain a secure seal around the PTO shaft with a 2.000 inch (50.8 mm) diameter. The nitrile sealing material offers resistance to oil, heat, and wear, making it suitable for demanding automotive environments. The seal’s outside diameter of 2.627 inches (66.73 mm) matches the housing bore size closely at 2.623 inches (66.62 mm), ensuring a precise fit. The 0.312 inch (7.92 mm) thickness provides adequate sealing surface to prevent fluid leakage in transfer cases of various GM and Dodge models.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis PTO shaft seal is compatible with a range of vehicles including Buick 60 Special, Cadillac Allante, DeVille, Eldorado, Fleetwood, Seville, Chevrolet Blazer, K10, K20, K1500, K2500, K3500, Oldsmobile 98, Pontiac Grand Prix, Grand LeMans, Riviera, and Dodge D250, D350 commercial chassis models. It is designed to replace worn or damaged seals in transfer cases to maintain proper lubrication and prevent contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from transfer case PTO shafts\u003c\/li\u003e\n\u003cli\u003eEliminates contamination ingress that can cause premature wear\u003c\/li\u003e\n\u003cli\u003eResolves issues related to noisy or rough PTO shaft operation\u003c\/li\u003e\n\u003cli\u003eHelps maintain transfer case fluid integrity\u003c\/li\u003e\n\u003cli\u003eAddresses seal failure due to age or damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 471424 PTO shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Verify the shaft diameter matches the 2.000 inch specification for proper sealing. Lubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear. Follow vehicle-specific service manual instructions for transfer case disassembly and reassembly to avoid damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational’s transfer case PTO shaft seal 471424 is manufactured to meet OEM standards with nitrile material and Redicoat coating for durability. This zero duplication part is engineered for consistent fit and performance. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship, providing confidence in long-term reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448300634293,"sku":"BCZK-471424","price":20.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_471424_Fro.jpg?v=1774734659"},{"product_id":"national-471466-transfer-case-shift-shaft-seal","title":"National 471466 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eNational Transfer Case Shift Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 471466 Transfer Case Shift Shaft Seal is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Ford, GMC, and Jeep models. Designed with durable nitrile material and precise dimensions, this oil seal helps maintain proper lubrication and prevents fluid leaks in your vehicle's transfer case.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.625 inch (15.880 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.128 inch (28.650 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.250 inch (6.350 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eRedicoat finish for enhanced corrosion protection\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 1.124 inch (28.550 mm)\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case shift shaft seal (part number 471466) is designed to fit transfer cases in Chevrolet Blazer, Ford Bronco, GMC Jimmy, Jeep Cherokee, and other models such as CJ5, CJ7, F-100, J10, J20, K10 Suburban, K20 Suburban, Scrambler, and Wagoneer. The seal’s nitrile construction offers excellent resistance to oil, heat, and wear, making it suitable for demanding automotive environments. The precise inside diameter of 0.625 inch and outside diameter of 1.128 inch ensure a secure fit around the shift shaft and housing bore, preventing fluid leaks and contamination. The Redicoat finish adds an extra layer of corrosion resistance, extending the service life of the seal.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks around the shift shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can cause premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case assembly\u003c\/li\u003e\n\u003cli\u003eAddresses noise or shifting issues caused by worn or damaged seals\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to fluid loss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the shaft diameter matches the 0.625 inch specification for proper sealing\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eInspect the seal for damage prior to installation to avoid leaks\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer guidelines for transfer case service procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 471466 seal is a zero duplication part, guaranteeing a unique fit and consistent quality. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship. Always consult product documentation or the vehicle service manual for warranty and installation guidance.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448300929205,"sku":"BCZK-471466","price":14.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_471466_Fro.jpg?v=1774734660"},{"product_id":"national-471869-transfer-case-input-shaft-seal","title":"National 471869 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 471869\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Input Shaft Seal 471869 is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Ford, GMC, and Jeep vehicles. Designed with nitrile material and precise dimensions, this oil seal helps maintain proper lubrication and prevents fluid leaks in demanding automotive applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.937 inches (49.200 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.690 inches (68.330 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.375 inches (9.530 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: durable nitrile for resistance to oil and heat\u003c\/li\u003e\n\u003cli\u003eRedicoat surface treatment for enhanced wear protection\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.686 inches (68.220 mm)\u003c\/li\u003e\n\u003cli\u003ePart of National's 470000 series, designed for transfer case sealing systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case input shaft seal (part number 471869) is specifically designed to fit transfer cases in Chevrolet Blazer, Ford Bronco, GMC Jimmy, Jeep CJ5, and other related models. The seal’s nitrile construction offers excellent resistance to oil, heat, and wear, ensuring long-lasting performance under typical operating conditions. The precise inside diameter of 1.937 inches matches the input shaft size, while the outside diameter of 2.690 inches fits securely within the transfer case housing bore. The 0.375-inch thickness provides a robust sealing surface to prevent fluid leakage and contamination.\u003c\/p\u003e\u003cp\u003eFeaturing a Redicoat coating, this seal benefits from improved surface durability and reduced friction, which helps extend the service life of the transfer case components. As part of National’s 470000 series, this seal meets industry standards for transfer case gaskets and sealing systems, making it a reliable replacement part for maintenance and repair.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause low lubrication and damage\u003c\/li\u003e\n\u003cli\u003eEliminates contamination ingress that may lead to premature wear of input shaft bearings\u003c\/li\u003e\n\u003cli\u003eMaintains proper sealing under high temperature and pressure conditions\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case overheating due to fluid loss\u003c\/li\u003e\n\u003cli\u003eHelps restore transfer case performance in Chevrolet Blazer, Ford F-150, GMC K1500, Jeep CJ7, and similar models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the shaft and bore dimensions match the seal specifications (1.937 inch shaft, 2.686 inch bore)\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing without distortion\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid on the seal lip before installation to reduce initial wear\u003c\/li\u003e\n\u003cli\u003eInspect the input shaft for wear or damage prior to seal replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet strict quality standards for durability and fitment. The nitrile material and Redicoat treatment ensure resistance to oil degradation and mechanical wear. This part is backed by National’s standard warranty coverage, providing confidence in its performance and reliability when installed according to manufacturer guidelines.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448302239925,"sku":"BCZK-471869","price":17.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_471869_Fro.jpg?v=1774734664"},{"product_id":"national-472635-transfer-case-output-shaft-seal","title":"National 472635 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 472635\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 472635 is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, GMC, and Jeep vehicles. Designed with durable nitrile material and precise dimensions, this oil seal helps maintain optimal transfer case function by preventing fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.552 inches (39.420 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.506 inches (63.650 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.500 inches (12.700 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and heat\u003c\/li\u003e\n\u003cli\u003eRedicoat surface treatment for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet Blazer, GMC Jimmy, Jeep CJ5, and K10\/K20 Suburban models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal, part number 472635, is manufactured from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based fluids and high temperatures. The seal features an inside diameter of 1.552 inches (39.420 mm) and an outside diameter of 2.506 inches (63.650 mm), with a thickness of 0.500 inches (12.700 mm). These precise measurements ensure a proper fit within the housing bore, which measures approximately 2.502 inches (63.550 mm). The Redicoat coating enhances the seal’s surface, improving wear resistance and extending service life. This seal is part of National’s 470000 series, designed specifically for transfer case applications requiring reliable oil retention and protection against contaminants.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of Chevrolet, GMC, and Jeep models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Blazer\u003c\/li\u003e\n\u003cli\u003eGMC Jimmy\u003c\/li\u003e\n\u003cli\u003eJeep CJ5\u003c\/li\u003e\n\u003cli\u003eChevrolet K10 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet K20 Suburban\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace worn or damaged seals in these vehicles’ transfer cases, helping to maintain proper lubrication and prevent fluid leaks.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can cause premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the output shaft\u003c\/li\u003e\n\u003cli\u003eHelps avoid transfer case overheating due to fluid loss\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part for proper sealing\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip with transfer case fluid prior to installation\u003c\/li\u003e\n\u003cli\u003eCheck for proper fit and alignment to prevent premature failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures this transfer case output shaft seal to meet industry standards for durability and performance. The use of nitrile material and Redicoat treatment ensures resistance to oil, heat, and wear. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448303845557,"sku":"BCZK-472635","price":25.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_472635_Fro.jpg?v=1774734667"},{"product_id":"national-473204-transfer-case-output-shaft-seal","title":"National 473204 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 473204\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 473204 is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Dodge, Ford, and GMC vehicles. Designed with durable nitrile material and precise dimensions, this oil seal helps maintain proper lubrication and prevents fluid leaks in your vehicle's drivetrain.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 2.125 inches (53.980 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.754 inches (69.950 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.375 inches (9.530 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and heat\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.750 inches (69.850 mm)\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 473204) is part of the 470000 series and is specifically designed to fit transfer cases in a range of Chevrolet, Dodge, Ford, and GMC trucks and SUVs. The seal features a nitrile construction that offers excellent resistance to oil, heat, and wear, making it suitable for demanding automotive environments. The Redicoat treatment further enhances the seal's longevity by providing additional protection against corrosion and abrasion.\u003c\/p\u003e\u003cp\u003eWith an inside diameter of 2.125 inches and an outside diameter of 2.754 inches, this seal fits transfer case output shafts and housings precisely, ensuring a tight seal to prevent fluid leakage. The thickness of 0.375 inches provides the necessary robustness to maintain sealing integrity under operational stresses.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with various models, including Chevrolet Blazer, K5 Blazer, K10, K10 Suburban, K20, K20 Suburban, K30, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Dodge Ramcharger, Ford F-100, F-150, F-250, F-350, and GMC Jimmy, W100, W150, W200, W300. It is designed to fit transfer cases with a housing bore of approximately 2.750 inches, ensuring proper fitment and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks around the output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for transfer case components\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly drivetrain repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without damage\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches manufacturer specifications for proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the output shaft for wear or damage prior to installing the new seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip to aid installation and initial lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seal 473204 is manufactured to meet industry standards for durability and performance. The nitrile material and Redicoat treatment provide resistance to oil, heat, and abrasion, contributing to a reliable service life. This part is a zero duplication item, ensuring unique quality and fit. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448304959669,"sku":"BCZK-473204","price":35.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_473204_Fro_838fbbd7-005d-4d20-9bbd-ddd94a9ec2a2.jpg?v=1774734668"},{"product_id":"national-473229-transfer-case-output-shaft-seal","title":"National 473229 Transfer Case Output Shaft Seal - Front, Rear or Rear Rearward","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 473229\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 473229 is designed to provide reliable sealing performance for transfer cases in select Ford and Jeep vehicles. Engineered with nitrile material and precise dimensions, this oil seal helps maintain proper lubrication and prevent leaks in your Bronco, Cherokee, CJ5, CJ7, J10, J20, and Wagoneer transfer cases.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.562 inches (39.670 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.506 inches (63.650 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.312 inches (7.920 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: durable nitrile rubber\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.502 inches (63.550 mm)\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and abrasion. The seal features a Redicoat surface treatment that improves durability and extends service life. With an inside diameter of 1.562 inches and an outside diameter of 2.506 inches, it fits precisely into transfer case housings with a bore size of approximately 2.502 inches. The 0.312-inch thickness ensures a secure seal around the output shaft, preventing oil leaks and contamination.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis National 473229 output shaft seal is compatible with a range of Ford and Jeep models, including the Ford Bronco and Jeep Cherokee, as well as classic Jeep models like the CJ5, CJ7, J10, J20, and Wagoneer. It is specifically designed for transfer case applications where maintaining proper sealing is critical to drivetrain performance and longevity.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage internal components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature wear of the output shaft and bearings\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the shaft diameter matches the seal’s inside diameter of 1.562 inches\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eInspect the seal lip and Redicoat surface for damage prior to installation\u003c\/li\u003e\n\u003cli\u003eApply a light coating of compatible lubricant on the seal lip to ease installation and initial operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational’s transfer case output shaft seal 473229 is manufactured to meet strict quality standards, ensuring consistent dimensions and material integrity. The use of nitrile material and Redicoat treatment supports long-term durability under typical operating conditions. This part is a zero duplication item, confirming its unique design and fitment. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448305385653,"sku":"BCZK-473229","price":15.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_473229_Fro.jpg?v=1774734669"},{"product_id":"national-473457-transfer-case-output-shaft-seal","title":"National 473457 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 473457\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 473457 is designed to provide reliable sealing performance for Ford trucks, including the F-150, F-250, and F-350 models. Engineered with nitrile material and precise dimensions, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.875 inches (47.630 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.066 inches (77.880 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.375 inches (9.530 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: durable nitrile for resistance to oil and heat\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced wear protection\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size 3.061 inches (77.750 mm)\u003c\/li\u003e\n\u003cli\u003eZero duplication part ensuring unique fit and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 473457) is manufactured from nitrile, a material known for its excellent resistance to petroleum-based fluids and high temperatures. The seal features a 1.875-inch inside diameter and a 3.066-inch outside diameter, matching the housing bore of 3.061 inches to ensure a secure fit. With a thickness of 0.375 inches, it provides a robust barrier against fluid leakage. The Redicoat treatment adds an extra layer of protection against wear and corrosion, extending the service life of the seal. This part is specifically designed for Ford F-150, F-250, and F-350 transfer cases, making it a precise replacement for maintaining drivetrain performance.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause drivetrain damage\u003c\/li\u003e\n\u003cli\u003eEliminates contamination entry into the transfer case output shaft area\u003c\/li\u003e\n\u003cli\u003eReduces wear on the output shaft by maintaining proper lubrication\u003c\/li\u003e\n\u003cli\u003eAddresses noise and vibration issues caused by worn or damaged seals\u003c\/li\u003e\n\u003cli\u003eHelps maintain transfer case pressure and fluid levels for optimal operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part for proper sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet strict OEM specifications, ensuring reliable performance and durability. The 473457 seal is a zero duplication part, guaranteeing a unique and precise fit for Ford F-150, F-250, and F-350 models. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship to provide confidence in your purchase.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448306401461,"sku":"BCZK-473457","price":19.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_473457_Fro.jpg?v=1774734671"},{"product_id":"national-710005-transfer-case-output-shaft-seal","title":"National 710005 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710005\u003c\/h2\u003e\u003cp\u003eThe National 710005 transfer case output shaft seal is engineered to provide reliable sealing performance for select Chevrolet, Dodge, Ford, and GMC trucks and SUVs. Designed with durable nitrile material and precise dimensions, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.750 inches (44.450 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.066 inches (77.880 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.485 inches (12.320 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eRedicoat surface treatment for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 3.062 inches (77.770 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 710005, Series 710000, Type 86\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 710005) is specifically designed to fit transfer cases in a range of Chevrolet, Dodge, Ford, and GMC vehicles including models such as the Chevrolet Blazer, Ford Bronco, Dodge Ramcharger, and GMC K1500 Suburban. The seal’s nitrile construction offers excellent resistance to oil, heat, and abrasion, ensuring long-lasting performance in demanding automotive environments.\u003c\/p\u003e\u003cp\u003eThe seal features an inside diameter of 1.750 inches (44.450 mm) to fit the output shaft precisely, while the outside diameter of 3.066 inches (77.880 mm) matches the transfer case housing bore for a secure fit. Its 0.485 inch (12.320 mm) thickness provides a robust sealing surface to prevent fluid leaks and contamination. The Redicoat treatment enhances the seal’s surface durability, reducing wear and extending service life.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is used to maintain proper lubrication and prevent fluid leaks in the transfer case assembly. It addresses common issues such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePreventing transfer case fluid leaks that can lead to low fluid levels\u003c\/li\u003e\n\u003cli\u003eReducing contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizing wear on the output shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eMaintaining transfer case performance and longevity\u003c\/li\u003e\n\u003cli\u003eEnsuring proper sealing in off-road and heavy-duty driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with your vehicle’s make and model before installation\u003c\/li\u003e\n\u003cli\u003eClean the transfer case housing bore and output shaft thoroughly to remove old sealant and debris\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without damage\u003c\/li\u003e\n\u003cli\u003eInspect the output shaft for wear or damage before installing the new seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip to aid installation and initial lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM specifications for fit, form, and function. The use of nitrile material and Redicoat treatment ensures durability and resistance to common automotive fluids and conditions. This product is backed by National’s quality standards, providing confidence in its performance and reliability. Please refer to National’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448331305141,"sku":"BCZK-710005","price":23.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710005_Fro.jpg?v=1774734714"},{"product_id":"national-710046-transfer-case-output-shaft-seal","title":"National 710046 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710046\u003c\/h2\u003e\u003cp\u003eThe National 710046 Transfer Case Output Shaft Seal is engineered to provide reliable sealing performance for transfer cases in select Chevrolet, Dodge, GMC, and Jeep vehicles. Designed with durable nitrile material and a clockwise-spiral lip design, this oil seal helps maintain proper lubrication and prevent leaks in demanding automotive applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.552 inch (39.420 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.452 inch (62.280 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 2.700 inch (68.580 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.500 inch (12.700 mm) overall width with side lip\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile with Redicoat treatment\u003c\/li\u003e\n\u003cli\u003eHelix type: Clockwise-spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.447 inch (62.150 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710046 transfer case output shaft seal is constructed from nitrile, a material known for its resistance to oil, heat, and wear. The seal features a clockwise-spiral lip design that enhances sealing efficiency by directing contaminants away from the shaft and retaining lubricants within the transfer case. The Redicoat treatment adds an extra layer of corrosion resistance, extending the service life of the seal. With precise dimensions including a 1.552 inch inside diameter and a 2.452 inch outside diameter, this seal fits transfer case output shafts and housings accurately to ensure a secure fit and optimal performance.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of Chevrolet, Dodge, GMC, and Jeep models, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Blazer, S10, S10 Blazer, S15, S15 Jimmy, Sonoma\u003c\/li\u003e\n\u003cli\u003eDodge Dakota, Durango, Ram 1500, Comanche\u003c\/li\u003e\n\u003cli\u003eGMC Jimmy\u003c\/li\u003e\n\u003cli\u003eJeep Cherokee, CJ7, Grand Cherokee, Grand Wagoneer, Liberty, TJ, Wagoneer, Wrangler\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePart number 710046 is designed specifically for transfer case sealing systems in these vehicles, ensuring proper fitment and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage internal components\u003c\/li\u003e\n\u003cli\u003eMaintains lubrication integrity for smooth transfer case operation\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and housing bore\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal’s orientation matches the clockwise-spiral lip design for correct sealing direction\u003c\/li\u003e\n\u003cli\u003eInspect the shaft for wear or damage prior to installing the new seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of compatible lubricant on the seal lip to ease installation and initial operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals, including part number 710046, are manufactured to meet industry standards for durability and performance. The use of nitrile material combined with Redicoat treatment ensures resistance to oil degradation and corrosion. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship, providing confidence in the product’s reliability for your Chevrolet, Dodge, GMC, or Jeep transfer case maintenance needs.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448331698357,"sku":"BCZK-710046","price":19.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710046_Fro.jpg?v=1774890849"},{"product_id":"national-710141-transfer-case-extension-housing-seal","title":"National 710141 Transfer Case Extension Housing Seal","description":"\u003ch2\u003eOverview of National Transfer Case Extension Housing Seal 710141\u003c\/h2\u003e\u003cp\u003eThe National 710141 Transfer Case Extension Housing Seal is engineered for reliable sealing performance in select Lexus and Toyota vehicles. Designed to maintain optimal transfer case function, this oil seal is compatible with models such as the Lexus GX460, GX470, and Toyota Tacoma, Tundra, 4Runner, FJ Cruiser, Pickup, and T100.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.614 inches (41.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.409 inches (61.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.315 inches (8.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for durability and resistance\u003c\/li\u003e\n\u003cli\u003eCounter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.492 inches (12.500 mm)\u003c\/li\u003e\n\u003cli\u003eHousing bore compatibility: 2.402 inches (61.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case extension housing seal from National is constructed using polyacrylate, a material known for its resistance to heat, oil, and wear. The seal features a counter-clockwise spiral lip design that enhances sealing efficiency by preventing fluid leakage under various operating conditions. With precise dimensions including a 1.614-inch inside diameter and a 2.409-inch outside diameter, it fits securely within the housing bore of 2.402 inches, ensuring a tight seal for transfer case shafts.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 710141 seal is specifically designed for use in transfer cases of Lexus and Toyota vehicles. Compatible models include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLexus GX460 and GX470\u003c\/li\u003e\n\u003cli\u003eToyota 4Runner, FJ Cruiser, Tacoma, Tundra, Pickup, and T100\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis part is essential for maintaining the integrity of the transfer case extension housing, preventing oil leaks and contamination.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case extension housing\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage transfer case components\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the transfer case shaft by maintaining proper lubrication\u003c\/li\u003e\n\u003cli\u003eHelps maintain transfer case pressure and fluid levels\u003c\/li\u003e\n\u003cli\u003ePrevents premature failure of transfer case seals and bearings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the counter-clockwise spiral lip design for proper sealing\u003c\/li\u003e\n\u003cli\u003eCheck for proper fitment with the 1.614-inch shaft diameter and 2.402-inch housing bore\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The 710141 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448335433909,"sku":"BCZK-710141","price":20.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710141_Fro.jpg?v=1774734723"},{"product_id":"national-710159-transfer-case-input-shaft-seal","title":"National 710159 Transfer Case Input Shaft Seal - Inner","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 710159\u003c\/h2\u003e\u003cp\u003eThe National 710159 transfer case input shaft seal is engineered to provide reliable sealing performance for select Acura, Honda, Lexus, and Toyota models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.693 inches (43.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.308 inches (58.620 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.295 inches (7.500 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.302 inches (58.470 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710159 transfer case input shaft seal is part of the 710100 series, designed specifically for transfer case applications requiring a 72-type seal. Constructed from polyacrylate, this oil seal offers resistance to heat and wear, ensuring a tight seal around the input shaft. The precise inside diameter of 1.693 inches (43 mm) matches the shaft size for a secure fit, while the outside diameter of 2.308 inches (58.62 mm) fits the housing bore accurately at 2.302 inches (58.47 mm). With a thickness of 0.295 inches (7.5 mm), this seal maintains proper compression and sealing pressure within the transfer case assembly.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal is compatible with a range of Acura, Honda, Lexus, and Toyota vehicles, including models such as the Acura CL, Honda Accord, Toyota 4Runner, FJ Cruiser, Tacoma, Tundra, and Lexus GX460 and GX470. The part number 710159 ensures correct fitment for these specific models, providing a reliable replacement for worn or damaged seals.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Transfer Case Input Shaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels\u003c\/li\u003e\n\u003cli\u003eReduces contamination of transfer case internals by dirt and debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the input shaft and bearings\u003c\/li\u003e\n\u003cli\u003eHelps avoid transfer case overheating due to fluid loss\u003c\/li\u003e\n\u003cli\u003ePrevents premature wear of transfer case components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without damage\u003c\/li\u003e\n\u003cli\u003eVerify the shaft and seal dimensions match to avoid leaks or premature failure\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid on the seal lip before installation for smoother fit\u003c\/li\u003e\n\u003cli\u003eInspect the input shaft for wear or damage prior to installing the new seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet industry standards for durability and performance. The polyacrylate sealing material provides resistance to heat and chemical degradation, contributing to long service life. This product is backed by National's quality assurance protocols, ensuring consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448335990965,"sku":"BCZK-710159","price":25.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710159_Fro.jpg?v=1774734724"},{"product_id":"national-710403-transfer-case-output-shaft-seal","title":"National 710403 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710403\u003c\/h2\u003e\u003cp\u003eThe National 710403 transfer case output shaft seal is engineered to provide reliable sealing performance for a variety of vehicle models including Acura, Ford, Hyundai, and Mercedes-Benz. Designed with durable nitrile material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.625 inches (41.270 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.444 inches (62.080 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.472 inches (12.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for enhanced resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes and models including Ford Explorer, Lincoln Aviator, and Kia Sorento\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710403 transfer case output shaft seal is part of the 710400 series, designed specifically for transfer case applications requiring precise sealing solutions. Constructed from nitrile, a synthetic rubber known for its oil resistance and durability, this seal features an inside diameter of 1.625 inches and an outside diameter of 2.444 inches, fitting housing bores measuring approximately 2.440 inches (61.980 mm). The 0.472-inch thickness ensures a secure fit and effective sealing against fluid leaks. This seal is suitable for transfer cases in vehicles such as the Ford Explorer Sport Trac, Acura SLX, and Mercedes-Benz ML350, providing a reliable barrier against contaminants and fluid loss.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of vehicles, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcura SLX\u003c\/li\u003e\n\u003cli\u003eFord Explorer, Explorer Sport, Explorer Sport Trac, Bronco II, Ranger\u003c\/li\u003e\n\u003cli\u003eHyundai Santa Fe, Kia Sorento, Borrego\u003c\/li\u003e\n\u003cli\u003eLincoln Aviator, Mercury Mountaineer\u003c\/li\u003e\n\u003cli\u003eIsuzu B2300, B3000, B4000, Rodeo, Trooper, VehiCROSS\u003c\/li\u003e\n\u003cli\u003eMazda B2300, B3000, B4000\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz ML320, ML350, ML430, ML500, ML55 AMG\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by the National 710403 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage to internal components\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for output shaft bearings and gears\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure or wear\u003c\/li\u003e\n\u003cli\u003eEnsures consistent transfer case performance and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the nitrile seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part for proper sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility with the 1.625-inch shaft and 2.444-inch outside diameter\u003c\/li\u003e\n\u003cli\u003eApply a light coat of transfer case fluid to the seal lip to ease installation and improve sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The nitrile material offers resistance to oil, heat, and wear, ensuring a dependable seal under normal operating conditions. While specific warranty details may vary, National typically provides coverage against manufacturing defects to support product reliability and customer confidence.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448343036085,"sku":"BCZK-710403","price":27.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710403_Fro.jpg?v=1774734742"},{"product_id":"national-710495-transfer-case-output-shaft-seal","title":"National 710495 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710495\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 710495 is engineered to provide reliable sealing performance for select GM trucks and SUVs. Designed with durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.811 inches (46.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.884 inches (73.250 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.572 inches (14.530 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore approximately 2.874 inches (73.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National, part number 710495, belongs to the 710400 series and is constructed from fluoro-elastomer, a material known for its resistance to heat, oil, and wear. The seal’s precise dimensions, including a 1.811-inch inside diameter and 2.884-inch outside diameter, ensure a secure fit around the output shaft and housing bore. With a thickness of 0.572 inches, it provides a robust barrier against fluid leakage, helping to maintain optimal transfer case operation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of General Motors vehicles, including Chevrolet, GMC, and Cadillac models. Specifically, it fits Chevrolet Avalanche 1500 and 2500, Silverado 1500, 2500, and 3500 series (including Classic and HD variants), Suburban 1500 and 2500, Tahoe, as well as GMC Sierra 1500, 2500, and 3500 series, Yukon, Yukon XL 1500 and 2500, and Cadillac Escalade and Escalade EXT. This makes it suitable for owners seeking a reliable replacement seal for their transfer case output shaft.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Transfer Case Output Shaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels and damage\u003c\/li\u003e\n\u003cli\u003eProtects internal transfer case components from dirt and debris contamination\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature wear on the output shaft and bearings\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication and transfer case performance\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710495 transfer case output shaft seal, ensure the transfer case housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the fluoro-elastomer material. Verify the seal’s orientation matches the original part to maintain proper sealing function. It is recommended to inspect the output shaft for wear or damage before installation and replace if necessary to ensure a proper seal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM specifications, ensuring reliable fit and function. The fluoro-elastomer sealing material offers durability under high temperature and chemical exposure typical in automotive transfer cases. Part number 710495 is backed by National’s quality standards, providing confidence in long-term performance. Please refer to National’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448348606645,"sku":"BCZK-710495","price":44.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710495_Fro.jpg?v=1774734754"},{"product_id":"national-710496-transfer-case-output-shaft-seal","title":"National 710496 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710496 transfer case output shaft seal is engineered to provide reliable sealing performance for a range of GM and Dodge vehicles. Designed with a bi-directional lip and constructed from durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.886 inches (47.9 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.701 inches (68.6 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.213 inches (81.6 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.469 inches (11.9 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for enhanced sealing\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM and Dodge models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Features\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 710496) features a precise fit with a housing bore diameter of 2.697 inches (68.5 mm) and an overall width including side lip of 1.383 inches (35.12 mm). The fluoro-elastomer sealing material offers excellent resistance to heat, oil, and other automotive fluids, ensuring long-lasting durability in demanding transfer case environments. The bi-directional lip design provides effective sealing against fluid leakage in both rotational directions, which is critical for transfer case output shafts subject to varying torque and rotational forces.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a wide range of vehicles including Chevrolet Avalanche 1500 and 2500, Silverado 1500 and 2500 HD, GMC Sierra 1500 and 2500 HD, Cadillac Escalade and Escalade ESV, Dodge Ram 1500, and other models such as the Blazer, Durango, and Yukon XL. It is specifically designed for transfer case sealing systems in these vehicles, ensuring proper fit and function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710496 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage to internal components\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication by sealing the output shaft area\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003cli\u003eImproves overall drivetrain reliability in compatible GM and Dodge trucks and SUVs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the fluoro-elastomer seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the bi-directional lip to maintain effective sealing\u003c\/li\u003e\n\u003cli\u003eCheck for proper fitment with the housing bore diameter of 2.697 inches (68.5 mm)\u003c\/li\u003e\n\u003cli\u003eConsult vehicle service manual for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM standards for fit, form, and function. The fluoro-elastomer material and precision engineering ensure durability under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against defects in material and workmanship, providing confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448349098165,"sku":"BCZK-710496","price":34.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710496_Fro.jpg?v=1774890849"},{"product_id":"national-710597-transfer-case-shift-shaft-seal","title":"National 710597 Transfer Case Shift Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Shift Shaft Seal 710597\u003c\/h2\u003e\u003cp\u003eThe National 710597 transfer case shift shaft seal is engineered to provide reliable sealing performance for a variety of trucks and SUVs. Designed with durable polyacrylate material, this oil seal helps maintain proper lubrication and prevents fluid leaks in transfer cases of select Chevrolet, GMC, Dodge, Jeep, and other vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 0.750 inch (19.05 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.008 inch (25.6 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.225 inch (5.72 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size: 1.000 inch (25.4 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case shift shaft seal from National, part number 710597, is part of the 710500 series and is specifically designed to fit transfer cases requiring a 0.750 inch (19.05 mm) shaft diameter. The polyacrylate sealing material offers resistance to heat and wear, ensuring a tight seal around the shift shaft to prevent oil leakage. With an outside diameter of 1.008 inches (25.6 mm) and a thickness of 0.225 inches (5.72 mm), this seal fits precisely into a 1.000 inch (25.4 mm) housing bore, maintaining the integrity of the transfer case assembly.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case shift shaft seal is compatible with a wide range of vehicles, including Chevrolet Silverado 1500, GMC Sierra 1500, Dodge Ram 1500, Jeep Grand Cherokee, Cadillac Escalade, and Isuzu models. It is suitable for use in transfer cases of trucks and SUVs such as the Chevrolet Avalanche, Blazer, Suburban, Tahoe, and Jeep Wrangler JK. The part number 710597 ensures proper fitment for these models, supporting reliable transfer case operation.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case shift shaft area\u003c\/li\u003e\n\u003cli\u003eReduces contamination of transfer case fluid by dirt and debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for smooth shifting performance\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature transfer case wear and damage\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by fluid loss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the bore without damage\u003c\/li\u003e\n\u003cli\u003eVerify shaft diameter matches the 0.750 inch specification for proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the transfer case shift shaft for wear or damage prior to seal replacement\u003c\/li\u003e\n\u003cli\u003eFollow vehicle manufacturer torque specifications when reassembling components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet OEM standards for fit, form, and function. The polyacrylate material provides reliable sealing performance under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against defects in material and workmanship. Using part number 710597 ensures compatibility and durability for your transfer case maintenance needs.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448353685685,"sku":"BCZK-710597","price":11.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710597_Fro_5ef56bda-42ab-495a-86b0-b2e788b61664.jpg?v=1774734770"},{"product_id":"national-710627-transfer-case-input-shaft-seal","title":"National 710627 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 710627\u003c\/h2\u003e\u003cp\u003eThe National 710627 transfer case input shaft seal is engineered to provide reliable sealing performance for select Chrysler, Dodge, Jeep, Mitsubishi, and Ram vehicles. Designed with durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.937 inches (49.2 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.700 inches (68.58 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.394 inches (10 mm)\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 2.683 inches (68.16 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003ePart number: 710627, Series 710600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case input shaft seal (part number 710627) is specifically designed to fit transfer cases on various models including the Chrysler Aspen, Dodge Dakota, Durango, Ram 1500\/2500\/3500, Jeep Cherokee, Grand Cherokee, Liberty, Wrangler, Wrangler JK, and Mitsubishi Raider. The seal’s fluoro-elastomer construction offers excellent resistance to heat, oil, and other automotive fluids, ensuring long-lasting performance under demanding conditions.\u003c\/p\u003e\u003cp\u003eWith an inside diameter of 1.937 inches and an outside diameter of 2.700 inches, this seal fits precisely within the housing bore of 2.683 inches, providing a secure and leak-free interface around the input shaft. The 0.394-inch thickness contributes to a robust seal profile that maintains integrity during shaft rotation and transfer case operation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause low lubrication and damage\u003c\/li\u003e\n\u003cli\u003eProtects internal components from dirt and contaminants entering the transfer case\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature wear on input shaft bearings and gears\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper transfer case pressure and fluid levels\u003c\/li\u003e\n\u003cli\u003eAddresses common seal failure issues in Chrysler, Dodge, Jeep, Mitsubishi, and Ram transfer cases\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case input shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eLubricate the sealing lip with transfer case fluid prior to installation to reduce initial wear\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the seal to prevent leaks\u003c\/li\u003e\n\u003cli\u003eInspect the input shaft for wear or damage that could compromise seal performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet OEM specifications for fit, form, and function. The fluoro-elastomer sealing material is selected for durability and resistance to automotive fluids and temperature extremes. Part number 710627 is part of the 710600 series, ensuring consistent quality and compatibility. While specific warranty terms may vary, National products typically come with a limited warranty against defects in material and workmanship.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448355291317,"sku":"BCZK-710627","price":23.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710627_Fro_a846a7b5-fc36-4e31-bafc-346b3550cebe.jpg?v=1774734773"},{"product_id":"national-710645-transfer-case-output-shaft-seal","title":"National 710645 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710645 transfer case output shaft seal is engineered to provide reliable sealing performance for a range of GM vehicles. Designed with durable polyacrylate material, this oil seal helps maintain proper lubrication and prevents fluid leaks in transfer cases of select Cadillac, Chevrolet, Dodge, GMC, Oldsmobile, Pontiac, and Saturn models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.937 inches (49.2 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.700 inches (68.58 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.512 inches (13 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore size of 2.683 inches (68.16 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710645 transfer case output shaft seal is part of the 710600 series, designed specifically to fit transfer cases in various GM trucks and SUVs. Its polyacrylate sealing material offers resistance to heat, oil, and wear, ensuring a tight seal around the output shaft. With precise dimensions including a 1.937-inch inside diameter and a 2.700-inch outside diameter, this seal fits securely within the housing bore of 2.683 inches. The 0.512-inch thickness provides a robust barrier against fluid leaks, helping maintain transfer case integrity and performance.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a wide range of GM vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 2500, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe\u003c\/li\u003e\n\u003cli\u003eDodge Ram 1500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500\u003c\/li\u003e\n\u003cli\u003eOldsmobile, Pontiac, Saturn models such as Astro, Blazer, Bravada, Equinox, Jimmy, S10, Safari, Sonoma, Torrent, Vue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination of transfer case internals by dirt and debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the output shaft\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003cli\u003eEnsures smooth operation of four-wheel drive and all-wheel drive systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify the transfer case model and shaft dimensions before installation\u003c\/li\u003e\n\u003cli\u003eClean the housing bore thoroughly to remove old sealant and debris\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore\u003c\/li\u003e\n\u003cli\u003eInspect the output shaft for wear or damage prior to installing the new seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid on the seal lip to ease installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM specifications for fit and function. The polyacrylate material ensures durability under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against defects in material and workmanship to provide confidence in your purchase.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448357716149,"sku":"BCZK-710645","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710645_Fro.jpg?v=1774734777"},{"product_id":"national-710652-transfer-case-input-shaft-seal","title":"National 710652 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National 710652 Transfer Case Input Shaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710652 Transfer Case Input Shaft Seal is engineered to provide reliable sealing performance for select Dodge, Ford, and Ram trucks. Designed with precision dimensions and durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 2.1260 inches (54.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.879 inches (73.120 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.1338 inches (79.600 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.4370 inches (11.100 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and heat resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.875 inches (73.020 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis National transfer case input shaft seal (part number 710652) is specifically designed to fit transfer cases on Dodge Ram 1500, 2500, and 3500 models, as well as Ford F-250 Super Duty, F-350 Super Duty, and the Excursion. The seal’s fluoro-elastomer construction offers excellent resistance to oil, heat, and wear, ensuring a tight seal around the input shaft to prevent fluid leaks. Its precise dimensions, including a 2.1260 inch inside diameter and 2.879 inch outside diameter, ensure a proper fit within the transfer case housing bore of 2.875 inches. The flanged outside diameter of 3.1338 inches provides additional stability during installation and operation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause drivetrain damage\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the input shaft to reduce wear\u003c\/li\u003e\n\u003cli\u003eHelps avoid contamination of transfer case internals from dirt and debris\u003c\/li\u003e\n\u003cli\u003eAddresses issues related to worn or damaged seals in Dodge Ram and Ford Super Duty trucks\u003c\/li\u003e\n\u003cli\u003eSupports transfer case performance in heavy-duty towing and off-road conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the fluoro-elastomer seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the original part for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility with part number 710652\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip lightly with transfer case fluid before installation to ease fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet OEM specifications for durability and performance. The fluoro-elastomer material is selected for its resistance to heat, oil, and chemical exposure, ensuring long service life. This part is part of National’s 710600 series, known for consistent quality in sealing systems. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448357978293,"sku":"BCZK-710652","price":23.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710652_Fro.jpg?v=1774734778"},{"product_id":"national-710653-transfer-case-output-shaft-seal","title":"National 710653 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710653\u003c\/h2\u003e\u003cp\u003eThe National 710653 transfer case output shaft seal is engineered to provide reliable sealing performance for heavy-duty trucks. Designed with a bi-directional lip and made from durable fluoro-elastomer material, this oil seal is compatible with select Dodge, Ford, and Ram models, ensuring proper fit and function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 2.122 inch (53.9 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.040 inch (77.22 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.362 inch (85.4 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.430 inch (10.92 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.618 inch (15.7 mm)\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore of approximately 3.030 inch (76.96 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710653 transfer case output shaft seal features a bi-directional lip design that helps prevent oil leakage in both rotational directions, which is critical for transfer case applications. Constructed from fluoro-elastomer, the seal offers resistance to heat, oil, and other automotive fluids, extending service life under demanding conditions. The seal’s precise dimensions, including a 2.122 inch (53.9 mm) inside diameter and 3.040 inch (77.22 mm) outside diameter, ensure a secure fit within the transfer case housing bore of 3.030 inch (76.96 mm). The flanged outside diameter of 3.362 inch (85.4 mm) provides additional stability during installation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of heavy-duty trucks, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDodge Ram 1500, 2500, and 3500 models\u003c\/li\u003e\n\u003cli\u003eFord F-250 Super Duty and F-350 Super Duty\u003c\/li\u003e\n\u003cli\u003eDodge Ram 2500 and 3500 series\u003c\/li\u003e\n\u003cli\u003eFord Excursion\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed specifically for transfer case sealing applications where maintaining oil containment and preventing contamination are essential.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710653 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case output shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage internal components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and surrounding parts\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the bi-directional lip design for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck housing bore dimensions to confirm compatibility with the 3.030 inch (76.96 mm) specification\u003c\/li\u003e\n\u003cli\u003eApply a light coat of compatible lubricant on the seal lip to ease installation and prevent damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat and automotive fluids, contributing to long service life. The 710653 part number is part of National’s 710600 series, known for consistent quality in sealing systems. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358109365,"sku":"BCZK-710653","price":20.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710653_Fro.jpg?v=1774734778"},{"product_id":"national-710662-transfer-case-output-shaft-seal","title":"National 710662 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710662 transfer case output shaft seal is engineered to provide reliable sealing performance for select Chevrolet, Jeep, Pontiac, and Saturn vehicles. Designed with a bi-directional lip and constructed from durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.457 inches (37.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.095 inches (78.600 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.327 inches (84.500 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.433 inches (11.000 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.650 inches (16.500 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 3.087 inches (78.400 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710662 transfer case output shaft seal is specifically designed to fit transfer cases on Chevrolet Equinox, Jeep Liberty, Jeep TJ, Pontiac Torrent, Saturn Vue, and Jeep Wrangler models. Its fluoro-elastomer sealing material offers excellent resistance to heat, oil, and other automotive fluids, ensuring long-lasting performance under demanding conditions. The bi-directional lip design provides a secure seal around the output shaft, preventing fluid leakage and contamination ingress. With precise dimensions including a 1.457-inch inside diameter and a 3.095-inch outside diameter, this seal fits tightly within the transfer case housing bore, maintaining proper sealing pressure and durability.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause drivetrain damage\u003c\/li\u003e\n\u003cli\u003eEliminates contamination entry that leads to premature wear of internal components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case output shaft area\u003c\/li\u003e\n\u003cli\u003eReduces the risk of transfer case overheating due to fluid loss\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure in Chevrolet Equinox, Jeep Liberty, and Jeep Wrangler vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing to avoid damage\u003c\/li\u003e\n\u003cli\u003eVerify the shaft and seal dimensions match the specifications: 1.457-inch shaft diameter and 3.095-inch outside diameter\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip lightly with transfer case fluid prior to installation for smoother fitment\u003c\/li\u003e\n\u003cli\u003eInspect the output shaft for wear or damage before installing the new seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet strict industry standards for durability and performance. The fluoro-elastomer material ensures resistance to heat and chemical degradation, providing reliable sealing over time. The 710662 part number is part of National's 710600 series, known for consistent quality in gaskets and sealing systems. While specific warranty details may vary, National typically offers coverage against manufacturing defects to support professional repair confidence.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358305973,"sku":"BCZK-710662","price":28.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710662_Fro_b07975d9-54e7-42d4-9418-458777a534f6.jpg?v=1774734779"},{"product_id":"national-710663-transfer-case-output-shaft-seal","title":"National 710663 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710663 transfer case output shaft seal is engineered to provide reliable sealing performance for select Hummer and Jeep models. Designed with a bi-directional lip and fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Hummer H1 and Jeep Cherokee, Grand Cherokee, TJ, and Wrangler models\u003c\/li\u003e\n\u003cli\u003ePart number 710663 for precise identification\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing in both rotational directions\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer sealing material\u003c\/li\u003e\n\u003cli\u003eInside diameter approximately 1.177 inches (29.9 mm) and outside diameter around 2.587 inches (65.7 mm)\u003c\/li\u003e\n\u003cli\u003eThickness of 0.433 inches (11 mm) with overall width including side lip of 0.630 inches (16 mm)\u003c\/li\u003e\n\u003cli\u003eFits housing bore size near 2.578 inches (65.5 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 710663) is part of the 710600 series and features a bi-directional lip design that ensures effective sealing under varying rotational forces. The seal’s fluoro-elastomer construction offers resistance to heat, oil, and wear, making it suitable for demanding transfer case environments. With an inside diameter of 1.177 inches (29.9 mm) and an outside diameter of 2.587 inches (65.7 mm), it fits precisely into the housing bore of approximately 2.578 inches (65.5 mm). The thickness of 0.433 inches (11 mm) and overall width including the side lip of 0.630 inches (16 mm) provide a secure fit and reliable sealing surface.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is designed for use in the transfer cases of specific Hummer and Jeep vehicles, including the H1, Cherokee, Grand Cherokee, TJ, and Wrangler. It addresses common issues such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePreventing transfer case fluid leaks that can lead to component damage\u003c\/li\u003e\n\u003cli\u003eReducing contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintaining proper lubrication within the transfer case output shaft area\u003c\/li\u003e\n\u003cli\u003eMinimizing wear on the output shaft and surrounding components\u003c\/li\u003e\n\u003cli\u003eEnsuring consistent transfer case performance and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710663 transfer case output shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal’s orientation matches the bi-directional lip design for optimal sealing. Lubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear. Check for proper fitment with the shaft diameter of approximately 1.181 inches (30 mm) to ensure a secure seal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat and chemical degradation, supporting long service life. Part number 710663 is backed by National’s quality control processes, ensuring consistent product reliability. Warranty coverage details should be confirmed with the product documentation or manufacturer.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358404277,"sku":"BCZK-710663","price":25.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710663_Fro.jpg?v=1774734779"},{"product_id":"national-710664-transfer-case-input-shaft-seal","title":"National 710664 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 710664\u003c\/h2\u003e\u003cp\u003eThe National 710664 Transfer Case Input Shaft Seal is engineered to provide reliable sealing performance for a range of GM and Ford vehicles. Designed with durable polyacrylate material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.886 inches (47.900 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.756 inches (70.000 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.472 inches (12.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 2.750 inches (69.850 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710664 transfer case input shaft seal is part of the 710600 series, designed specifically for transfer case applications requiring precise sealing dimensions. The seal’s polyacrylate construction offers resistance to heat, oil, and wear, ensuring long-lasting performance in demanding automotive environments. With an inside diameter of 1.886 inches and an outside diameter of 2.756 inches, this seal fits securely within the housing bore of 2.750 inches, providing a tight seal around the input shaft to prevent oil leakage.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal is compatible with a variety of GM and Ford models, including Cadillac Escalade, Escalade ESV, Escalade EXT, Ford Expedition, Express 1500 and 2500, F-150, Lincoln Navigator, Mark LT, GMC Sierra 1500, Yukon, Yukon XL 1500 and 2500, Suburban 1500 and 2500, Tahoe, and Savana 1500 and 2500. The part number 710664 ensures proper fitment and function within these specific transfer case systems.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710664 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the input shaft\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on transfer case components due to fluid loss\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710664 transfer case input shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the seal’s orientation matches the manufacturer’s specifications to maintain optimal sealing performance. It is recommended to inspect the input shaft for wear or damage before installation to ensure a proper seal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The polyacrylate material used in the 710664 seal provides resistance to heat and oil degradation. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product’s reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358633653,"sku":"BCZK-710664","price":21.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710664_Fro.jpg?v=1774734779"},{"product_id":"national-710665-transfer-case-output-shaft-seal","title":"National 710665 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710665 transfer case output shaft seal is engineered to provide reliable sealing performance for select INFINITI, Nissan, and Suzuki vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.772 inches (45.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.761 inches (70.130 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.551 inches (14.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eClockwise-spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eFits housing bore of 2.756 inches (70.000 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.945 inches (24.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710665 transfer case output shaft seal is constructed from polyacrylate, a material known for its resistance to heat, wear, and chemical exposure. Its clockwise-spiral lip design ensures a tight seal around the output shaft, minimizing the risk of oil leakage from the transfer case. With precise inside and outside diameters matching OEM specifications, this seal fits securely within the housing bore, maintaining proper lubrication and protecting internal components.\u003c\/p\u003e\u003cp\u003eThis seal is part of National's 710600 series, which focuses on transfer case gaskets and sealing systems designed for durability and reliable performance in demanding automotive applications.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of vehicles including INFINITI models like the QX4 and QX56, Nissan models such as Armada, Frontier, Pathfinder, Pathfinder Armada, TITAN, and Xterra, as well as Suzuki vehicles. The part number 710665 ensures correct fitment for these specific models, supporting proper transfer case function and longevity.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to component damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the output shaft\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs due to seal failure\u003c\/li\u003e\n\u003cli\u003eSupports smooth drivetrain operation in 4WD and AWD systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the clockwise-spiral lip design for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck for proper seating to prevent leaks and premature wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet or exceed OEM standards, providing reliable sealing performance. The 710665 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358699189,"sku":"BCZK-710665","price":16.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710665_Fro.jpg?v=1774734780"},{"product_id":"national-710668-transfer-case-output-shaft-seal","title":"National 710668 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National 710668 Transfer Case Output Shaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710668 transfer case output shaft seal is engineered to provide reliable sealing performance for select GM and Dodge vehicles. Designed with a bi-directional lip and fluoro-elastomer material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.376 inch (34.95 mm) and 1.378 inch (35.00 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.567 inch (65.20 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.398 inch (10.00 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing in both rotational directions\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer sealing material\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 2.559 inch (65.00 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.650 inch (16.5 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National is part of the 710600 series and is specifically designed to fit transfer cases requiring a 40-type seal. The fluoro-elastomer material offers resistance to heat, oil, and wear, making it suitable for demanding automotive environments. The bi-directional lip design ensures a tight seal around the shaft, minimizing the risk of fluid leakage during both forward and reverse rotation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 710668 seal is compatible with a range of vehicles including Cadillac, Chevrolet, Dodge, GMC, and Oldsmobile models. It is suitable for transfer cases in vehicles such as the Chevrolet Avalanche 1500 and 2500, Silverado 1500 and 1500 Classic, Suburban 1500 and 2500, Tahoe, Yukon and Yukon XL 1500\/2500, as well as the GMC Sierra 1500 and 1500 Classic, Jimmy, Bravada, and Safari. Dodge Ram 1500 and other GM trucks like the Blazer and Astro are also supported.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the 710668 Transfer Case Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage to internal components\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the transfer case assembly\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication by sealing the output shaft effectively\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure and fluid loss\u003c\/li\u003e\n\u003cli\u003eImproves transfer case longevity and operational reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify shaft dimensions match the seal’s inside diameter for proper fit\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid on the seal lip to ease installation\u003c\/li\u003e\n\u003cli\u003eCheck for proper seating and alignment to prevent premature wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM specifications and undergo rigorous quality control testing. The fluoro-elastomer material and bi-directional lip design contribute to consistent sealing performance under various operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358830261,"sku":"BCZK-710668","price":20.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710668_Fro.jpg?v=1774734780"},{"product_id":"national-710680-transfer-case-output-shaft-seal","title":"National 710680 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710680 transfer case output shaft seal is engineered for reliable sealing performance in select Nissan and INFINITI vehicles. Designed to maintain optimal fluid retention, this oil seal helps protect your transfer case from leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Nissan Murano, X-Trail, and INFINITI JX35 models\u003c\/li\u003e\n\u003cli\u003ePart number 710680 ensures precise fitment and quality\u003c\/li\u003e\n\u003cli\u003eConstructed from durable polyacrylate sealing material\u003c\/li\u003e\n\u003cli\u003eClockwise-spiral lip design for effective sealing under rotational motion\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.323 inch (59 mm) inside diameter, 3.157 inch (80.2 mm) outside diameter, 0.472 inch (12 mm) thickness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Features\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National features a polyacrylate material known for its resistance to heat and wear, suitable for demanding automotive environments. The seal incorporates a clockwise-spiral lip design that enhances sealing efficiency by directing fluid back into the transfer case, reducing leakage risks. With an inside diameter of 2.323 inches (59 mm) and an outside diameter of 3.157 inches (80.2 mm), it fits precisely into the housing bore of 3.150 inches (80 mm). The overall width, including the side lip, measures 0.709 inches (18 mm), providing a secure and stable seal around the output shaft.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis National 710680 transfer case output shaft seal is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNissan Murano\u003c\/li\u003e\n\u003cli\u003eNissan X-Trail\u003c\/li\u003e\n\u003cli\u003eINFINITI JX35\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is specifically designed to replace worn or damaged seals in the transfer case output shaft area, helping maintain proper lubrication and preventing dirt and debris ingress.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low lubrication levels\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and moisture entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and surrounding components\u003c\/li\u003e\n\u003cli\u003eHelps maintain transfer case performance and longevity\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by fluid loss or seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the clockwise-spiral lip design for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility with part number 710680\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip before installation to reduce initial wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The polyacrylate material and precise engineering ensure consistent sealing under normal operating conditions. This product is part of National's 710600 series, known for reliable sealing solutions in automotive transfer cases. Warranty coverage details should be confirmed with the original equipment provider or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448358928565,"sku":"BCZK-710680","price":24.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710680_Fro.jpg?v=1774734780"},{"product_id":"national-710682-transfer-case-output-shaft-seal","title":"National 710682 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710682\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Output Shaft Seal 710682 is engineered to provide reliable sealing performance for a range of vehicles including Cadillac Escalade, Chevrolet Silverado 1500, and GMC Yukon XL 2500. Designed with durable fluoro-elastomer material, this oil seal ensures effective protection against leaks and contamination in transfer case applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.732 inches (44.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.764 inches (70.200 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.000 inches (76.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.461 inches (11.700 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.614 inches (15.600 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM and Korean vehicle models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National, part number 710682, belongs to the 710600 series and is constructed from fluoro-elastomer, a material known for its resistance to heat, oil, and other automotive fluids. The seal features a precise inside diameter of 1.732 inches (44 mm) to fit the output shaft snugly, while the outside diameter of 2.764 inches (70.2 mm) and flanged outside diameter of 3.000 inches (76.2 mm) ensure a secure fit within the housing bore. The thickness of 0.461 inches (11.7 mm) and overall width with side lip of 0.614 inches (15.6 mm) provide a robust sealing surface to prevent fluid leakage and contamination.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a variety of vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe, Express 1500, Express 2500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, Yukon, Yukon XL 1500, Yukon XL 2500, Savana 1500, Savana 2500\u003c\/li\u003e\n\u003cli\u003eHummer H2\u003c\/li\u003e\n\u003cli\u003eHyundai Santa Fe\u003c\/li\u003e\n\u003cli\u003eKia Borrego, Sorento\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks around the output shaft\u003c\/li\u003e\n\u003cli\u003eProtects transfer case internals from dirt and debris contamination\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication by sealing fluid within the transfer case\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case damage due to fluid loss\u003c\/li\u003e\n\u003cli\u003eHelps maintain smooth drivetrain operation and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches manufacturer specifications to ensure proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the shaft for wear or damage that could compromise seal performance\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip before installation to reduce initial wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet strict industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat, oil, and chemical exposure commonly encountered in automotive transfer case environments. Part number 710682 is backed by National's quality assurance processes to ensure consistent fit and function. Please refer to National's warranty policy for specific coverage details.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448359059637,"sku":"BCZK-710682","price":34.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710682_Fro.jpg?v=1774890851"},{"product_id":"national-710684-transfer-case-input-shaft-seal","title":"National 710684 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 710684\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Input Shaft Seal 710684 is engineered to provide reliable sealing performance for transfer cases in select Chrysler, Dodge, and Jeep vehicles. Designed with precision dimensions and durable materials, this oil seal helps maintain optimal transfer case function by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 2.283 inches (58.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.209 inches (81.500 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.492 inches (12.500 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing under varying rotational directions\u003c\/li\u003e\n\u003cli\u003eCompatible housing bore: 3.201 inches (81.300 mm)\u003c\/li\u003e\n\u003cli\u003ePart number: 710684, series 710600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal features a bi-directional helix lip design that ensures a tight seal around the input shaft, reducing the risk of oil leakage in both rotational directions. Constructed from fluoro-elastomer, the seal offers superior resistance to heat, oil, and other automotive fluids, making it suitable for demanding transfer case environments. The precise inside diameter of 2.283 inches (58 mm) and outside diameter of 3.209 inches (81.5 mm) ensure a proper fit within the housing bore of 3.201 inches (81.3 mm), maintaining the integrity of the transfer case assembly.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis National transfer case input shaft seal 710684 is compatible with various Chrysler, Dodge, and Jeep models, including the Aspen, Commander, Durango, Grand Cherokee, Liberty, and Nitro. It is specifically designed to meet the sealing requirements of these vehicles’ transfer cases, ensuring reliable performance and longevity.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Transfer Case Input Shaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case input shaft area\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage transfer case components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature wear of the input shaft and bearings\u003c\/li\u003e\n\u003cli\u003eSupports consistent transfer case operation under various driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710684 transfer case input shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the seal’s orientation matches the bi-directional lip design for optimal performance. It is recommended to inspect the input shaft for wear or damage before installation to prevent future leaks.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precise engineering contribute to a reliable sealing solution. This product is part of the 710600 series and carries a manufacturer-backed warranty against defects in material and workmanship, providing confidence in its long-term use.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448359485621,"sku":"BCZK-710684","price":19.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710684_Fro.jpg?v=1774734780"},{"product_id":"national-710691-transfer-case-output-shaft-seal","title":"National 710691 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710691\u003c\/h2\u003e\u003cp\u003eThe National 710691 transfer case output shaft seal is engineered for reliable sealing performance in Jeep Grand Cherokee vehicles. Designed with precision dimensions and durable materials, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Jeep Grand Cherokee transfer cases\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.504 inches (38.2 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.381 inches (60.47 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.362 inches (9.2 mm)\u003c\/li\u003e\n\u003cli\u003eFluoro-elastomer sealing material for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCounter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eFits housing bore size of 2.375 inches (60.33 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Features\u003c\/h2\u003e\u003cp\u003eThe National 710691 transfer case output shaft seal features a fluoro-elastomer sealing material known for its resistance to heat, oil, and wear. Its counter-clockwise spiral lip design ensures a tight seal around the output shaft, minimizing the risk of fluid leakage. The seal measures 1.504 inches (38.2 mm) on the inside diameter and 2.381 inches (60.47 mm) on the outside diameter, with a thickness of 0.362 inches (9.2 mm). The overall width including the side lip is 0.720 inches (18.3 mm), fitting precisely into a housing bore of 2.375 inches (60.33 mm). These dimensions are critical for maintaining proper sealing in the transfer case assembly of Jeep Grand Cherokee models.\u003c\/p\u003e\u003ch2\u003eApplication and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is specifically designed for Jeep Grand Cherokee vehicles, ensuring compatibility and reliable performance. It addresses common issues such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePreventing transfer case fluid leaks that can lead to component damage\u003c\/li\u003e\n\u003cli\u003eReducing contamination ingress into the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintaining proper lubrication of the output shaft\u003c\/li\u003e\n\u003cli\u003eMinimizing wear on transfer case components due to fluid loss\u003c\/li\u003e\n\u003cli\u003eEnsuring smooth operation of the drivetrain system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710691 seal, ensure the transfer case output shaft and housing bore are clean and free of debris. Proper alignment during installation is essential to avoid damage to the seal lip. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the counter-clockwise spiral lip design for optimal sealing performance. It is recommended to inspect the output shaft for wear or damage before installation to maximize seal longevity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The use of fluoro-elastomer material provides resistance to heat and chemical degradation, contributing to a longer service life. Part number 710691 is part of the National 710600 series, known for consistent quality in gaskets and sealing systems. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the product’s reliability for Jeep Grand Cherokee applications.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448360140981,"sku":"BCZK-710691","price":15.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710691_Fro.jpg?v=1774734782"},{"product_id":"national-710692-transfer-case-output-shaft-seal","title":"National 710692 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710692\u003c\/h2\u003e\u003cp\u003eThe National 710692 transfer case output shaft seal is engineered to provide reliable sealing performance for a range of vehicles including Buick, Chevrolet, Chrysler, Dodge, GMC, Isuzu, Jeep, Oldsmobile, Pontiac, Ram, Saab, and Saturn models. Designed specifically for transfer case applications, this oil seal helps maintain proper lubrication and prevents fluid leaks in demanding drivetrain environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.376 inch (34.950 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.252 inch (57.200 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 2.480 inch (63.000 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.402 inch (10.200 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer material\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore diameter of 2.244 inch (57.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National features a bi-directional lip design that ensures a tight seal against contaminants and fluid leakage in both rotational directions. The fluoro-elastomer sealing material offers resistance to heat, oil, and chemical degradation, making it suitable for the harsh conditions found in transfer case assemblies. The seal’s precise dimensions, including a 1.376 inch inside diameter and 2.252 inch outside diameter, match OEM specifications for proper fitment and function.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 710692 seal is compatible with transfer cases on various models such as the Chevrolet Trailblazer, GMC Envoy, Jeep Grand Cherokee, Dodge Ram 1500, Buick Rainier, and Saturn Vue. It is designed to replace worn or damaged output shaft seals in these vehicles, helping to maintain transfer case integrity and prevent fluid leaks that can lead to drivetrain issues.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks\u003c\/li\u003e\n\u003cli\u003eProtects against dirt and debris intrusion\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of output shaft\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case damage\u003c\/li\u003e\n\u003cli\u003eEnsures smooth drivetrain operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710692 transfer case output shaft seal, ensure the housing bore is clean and free of debris. Verify the seal dimensions match the original part to guarantee proper fit. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Lubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear and facilitate a proper seal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precise engineering provide reliable sealing under typical operating conditions. This product is part of National’s 710600 series, known for consistent quality in gaskets and sealing systems. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448360206517,"sku":"BCZK-710692","price":18.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710692_Fro.jpg?v=1774734782"},{"product_id":"national-710693-transfer-case-input-shaft-seal","title":"National 710693 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eNational Transfer Case Input Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710693 transfer case input shaft seal is engineered to provide reliable sealing performance for select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Designed with durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.937 inch (49.200 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.700 inch (68.580 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 2.921 inch (74.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.500 inch (12.700 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for enhanced chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.683 inch (68.160 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710693 transfer case input shaft seal is part of the 710600 series and is constructed from fluoro-elastomer, a material known for its resistance to heat, oil, and wear. The seal features a precise inside diameter of 1.937 inches (49.200 mm) to fit the input shaft snugly, while the outside diameter of 2.700 inches (68.580 mm) ensures a secure fit within the transfer case housing bore of 2.683 inches (68.160 mm). The flanged outside diameter of 2.921 inches (74.200 mm) provides additional sealing surface and stability during operation. With a thickness of 0.500 inches (12.700 mm), this seal balances durability and flexibility to maintain effective sealing under various driving conditions.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal is compatible with a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Specifically, it fits transfer cases on models such as the Buick Rainier, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Isuzu Ascender, Oldsmobile Bravada, and Saab 9-7x. The National 710693 seal is designed to maintain transfer case fluid integrity and prevent leaks in these applications.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710693 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels and damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress to protect internal transfer case components\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the input shaft by maintaining proper lubrication\u003c\/li\u003e\n\u003cli\u003eHelps avoid transfer case overheating caused by fluid loss\u003c\/li\u003e\n\u003cli\u003eMaintains transfer case performance and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710693 transfer case input shaft seal, ensure the transfer case housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the fluoro-elastomer material. Verify the seal’s orientation matches manufacturer specifications to ensure proper sealing. It is recommended to inspect the input shaft for wear or damage before installation and replace if necessary to prevent premature seal failure.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat, oil, and chemical exposure commonly encountered in transfer case environments. The 710693 part number is backed by National’s quality control processes to ensure consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448360272053,"sku":"BCZK-710693","price":25.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710693_Fro.jpg?v=1774734782"},{"product_id":"national-710694-transfer-case-output-shaft-seal","title":"National 710694 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National 710694 Transfer Case Output Shaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710694 transfer case output shaft seal is engineered to provide reliable sealing performance for select Cadillac, Chrysler, Dodge, Jeep, and Nissan vehicles. Designed with a bi-directional lip and constructed from durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 2.126 inches (54.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.961 inches (75.200 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.189 inches (81.000 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.492 inches (12.500 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for enhanced sealing\u003c\/li\u003e\n\u003cli\u003eMaterial: Fluoro-elastomer for chemical and temperature resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.953 inches (75.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710694 transfer case output shaft seal is part of the 710600 series, designed specifically for transfer case applications requiring precise sealing solutions. Its fluoro-elastomer construction offers resistance to heat, oil, and other automotive fluids, ensuring long-lasting durability under demanding operating conditions. The bi-directional lip design provides effective sealing against fluid leakage in both rotational directions, which is critical for maintaining transfer case performance and preventing contamination.\u003c\/p\u003e\u003cp\u003eWith an inside diameter of 2.126 inches and an outside diameter of 2.961 inches, this seal fits transfer case output shafts and housings with matching dimensions. The flanged outside diameter of 3.189 inches allows for secure installation and proper seating within the transfer case assembly.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac CT6\u003c\/li\u003e\n\u003cli\u003eChrysler Aspen, Commander\u003c\/li\u003e\n\u003cli\u003eDodge Durango, Nitro\u003c\/li\u003e\n\u003cli\u003eJeep Grand Cherokee, Liberty\u003c\/li\u003e\n\u003cli\u003eNissan TITAN, TITAN XD\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace worn or damaged seals in these models, helping to maintain transfer case fluid integrity and prevent leaks.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the 710694 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage to internal components\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft by maintaining proper lubrication\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003cli\u003eMaintains optimal transfer case performance and vehicle drivability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal dimensions match the original equipment specifications\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without damaging the lip\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid to the seal lip prior to installation to reduce initial wear\u003c\/li\u003e\n\u003cli\u003eInspect the seal after installation for proper seating and alignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 710694 seal is made from high-grade fluoro-elastomer material, providing resistance to heat, oil, and chemical exposure common in automotive environments. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to support product reliability and customer confidence.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448360304821,"sku":"BCZK-710694","price":18.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710694_Fro_ca5ca18d-c180-454a-81d5-e0c79a43a862.jpg?v=1774890851"},{"product_id":"national-710769-transfer-case-output-shaft-seal","title":"National 710769 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710769\u003c\/h2\u003e\u003cp\u003eThe National 710769 transfer case output shaft seal is engineered for reliable sealing performance in select Chevrolet, GMC, and Isuzu vehicles. Designed to maintain optimal transfer case function, this oil seal helps prevent fluid leaks and contamination in models like the Chevrolet Colorado and GMC Canyon.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 1.260 inch (32 mm) and 1.496 inch (38 mm) shaft sizes\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.937 inch (49.2 mm)\u003c\/li\u003e\n\u003cli\u003eSeal thickness: 0.709 inch (18 mm)\u003c\/li\u003e\n\u003cli\u003eConstructed from durable PTFE sealing material\u003c\/li\u003e\n\u003cli\u003eCounter-clockwise spiral lip design for enhanced sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore diameter of approximately 1.929 inch (49 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National is part of the 710700 series and features a PTFE (polytetrafluoroethylene) sealing material known for its chemical resistance and low friction properties. The seal’s counter-clockwise spiral lip design improves sealing efficiency by directing fluid back into the transfer case, reducing leakage. With an outside diameter of 1.937 inches and a thickness of 0.709 inches, it fits precisely into the housing bore of 1.929 inches, ensuring a secure fit on shafts measuring 1.496 inches in diameter.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal 710769 is compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Colorado\u003c\/li\u003e\n\u003cli\u003eGMC Canyon\u003c\/li\u003e\n\u003cli\u003eIsuzu i-350\u003c\/li\u003e\n\u003cli\u003eIsuzu i-370\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is specifically designed to maintain transfer case integrity in these models by preventing oil leaks and contamination around the output shaft.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination from dirt and debris entering the transfer case\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft and surrounding components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for transfer case longevity\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore and shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the PTFE seal lip during installation\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the counter-clockwise spiral lip for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft and bore dimensions to confirm compatibility with the 710769 seal\u003c\/li\u003e\n\u003cli\u003eApply a light coating of transfer case fluid on the seal lip to ease installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The 710769 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448365842613,"sku":"BCZK-710769","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710769_Fro.jpg?v=1774734791"},{"product_id":"national-710771-transfer-case-output-shaft-seal","title":"National 710771 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710771 transfer case output shaft seal is engineered to provide reliable sealing performance for select Chevrolet, Dodge, and GMC trucks and SUVs. Designed with durable PTFE material and a bi-directional lip design, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter options: 2.185 inches (55.5 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.020 inches (76.7 mm)\u003c\/li\u003e\n\u003cli\u003eFlanged outside diameter: 3.543 inches (90 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.465 inches (11.8 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eBi-directional helix lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with housing bore of 3.016 inches (76.6 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal (part number 710771) features a PTFE sealing material known for its chemical resistance and low friction properties. The seal’s bi-directional lip design ensures effective sealing against oil leaks in both rotational directions, which is critical for transfer case output shafts. With an overall width of 1.406 inches (35.72 mm) including the side lip, it fits precisely within the housing bore diameter of 3.016 inches (76.6 mm). The flanged outside diameter of 3.543 inches (90 mm) provides secure mounting and stability during operation.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of Chevrolet, Dodge, and GMC models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Avalanche 1500 and 2500\u003c\/li\u003e\n\u003cli\u003eDodge Ram 2500 and 3500\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic, 3500, 3500 Classic, 3500 HD\u003c\/li\u003e\n\u003cli\u003eGMC Silverado 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic, 3500, 3500 Classic, 3500 HD\u003c\/li\u003e\n\u003cli\u003eGMC Suburban 1500 and 2500, Tahoe, Yukon, Yukon XL 1500, Yukon XL 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause drivetrain damage\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress to protect internal components\u003c\/li\u003e\n\u003cli\u003eMinimizes wear on the output shaft by maintaining proper lubrication\u003c\/li\u003e\n\u003cli\u003eHelps maintain transfer case pressure and performance\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by fluid loss or seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the PTFE seal lip during installation\u003c\/li\u003e\n\u003cli\u003eVerify correct orientation of the bi-directional lip for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck shaft surface for wear or damage prior to seal replacement\u003c\/li\u003e\n\u003cli\u003eApply a light coat of transfer case fluid to the seal lip before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM specifications for durability and fitment. The PTFE material and bi-directional lip design provide consistent sealing performance under demanding conditions. Part number 710771 is backed by National’s quality standards, ensuring reliable operation when installed according to guidelines.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448365973685,"sku":"BCZK-710771","price":36.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710771_Fro_eceaaf55-2085-4556-93c5-ee0562fdb331.jpg?v=1774734791"},{"product_id":"national-710835-transfer-case-output-shaft-seal","title":"National 710835 Transfer Case Output Shaft Seal - Front or Rear","description":"\u003ch2\u003eOverview of National 710835 Transfer Case Output Shaft Seal\u003c\/h2\u003e\u003cp\u003eThe National 710835 transfer case output shaft seal is engineered to provide reliable sealing performance for select Dodge and Jeep vehicles. Designed with precision dimensions and durable materials, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Dodge Ram 1500, Ram 2500, Jeep Grand Cherokee, Commander, and Liberty models\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.969 inches (50.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.764 inches (70.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.453 inches (11.500 mm)\u003c\/li\u003e\n\u003cli\u003eConstructed from fluoro-elastomer sealing material for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCounter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 0.685 inches (17.400 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal from National features a fluoro-elastomer sealing material known for its resistance to heat, oil, and wear. The seal’s counter-clockwise spiral lip design ensures a tight fit around the shaft, minimizing the risk of fluid leakage. With an inside diameter of 1.969 inches and an outside diameter of 2.764 inches, it fits precisely within the housing bore of 2.756 inches (70.000 mm). The thickness of 0.453 inches provides a robust barrier against contaminants while maintaining flexibility for shaft movement.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 710835 seal is specifically designed for transfer case output shafts on various Dodge and Jeep models. It is compatible with Dodge Ram 1500 and Ram 2500 trucks, as well as Jeep Grand Cherokee, Commander, and Liberty SUVs. This part number 710835 is ideal for those seeking a direct replacement seal that meets OEM specifications for these vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress into the transfer case\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication of the output shaft\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature transfer case wear or damage\u003c\/li\u003e\n\u003cli\u003eSupports smooth drivetrain operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710835 transfer case output shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the lip or sealing surface. Verify the seal orientation matches the counter-clockwise spiral lip design for optimal performance. It is recommended to inspect the output shaft for wear or damage before installation to ensure a proper seal.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational manufactures this transfer case output shaft seal to meet industry standards for durability and performance. The fluoro-elastomer material and precise dimensions contribute to a reliable sealing solution. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s quality.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448367939765,"sku":"BCZK-710835","price":16.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710835_Ang.jpg?v=1774734796"},{"product_id":"national-710902-transfer-case-output-shaft-seal","title":"National 710902 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eNational Transfer Case Output Shaft Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 710902 transfer case output shaft seal is engineered to provide reliable sealing performance for Dodge Ram trucks. Designed specifically for Ram 1500, 2500, and 3500 models, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Dodge Ram 1500, 2500, and 3500 models\u003c\/li\u003e\n\u003cli\u003ePart number 710902 for precise identification\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer sealing material\u003c\/li\u003e\n\u003cli\u003eCounter-clockwise spiral lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eInside diameter of 2.300 inches (58.420 mm) to fit output shaft\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 3.330 inches (84.579 mm) with flanged outside diameter of 3.858 inches (98.000 mm)\u003c\/li\u003e\n\u003cli\u003eThickness of 0.425 inches (10.795 mm) ensuring proper fit and durability\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip measures 1.969 inches (50.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710902 transfer case output shaft seal is designed to meet the demanding requirements of Dodge Ram trucks, including the Ram 1500, 2500, and 3500 series. This oil seal features a fluoro-elastomer sealing material known for its resistance to heat, oil, and wear, making it suitable for harsh automotive environments. The counter-clockwise spiral lip design enhances sealing efficiency by directing contaminants away from the shaft, reducing the risk of leaks and premature wear.\u003c\/p\u003e\u003cp\u003eWith an inside diameter of 2.300 inches (58.420 mm), this seal fits snugly around the transfer case output shaft, while the outside diameter of 3.330 inches (84.579 mm) and flanged outside diameter of 3.858 inches (98.000 mm) ensure a secure fit within the housing bore. The thickness of 0.425 inches (10.795 mm) and overall width with side lip of 1.969 inches (50.000 mm) provide the necessary durability and sealing surface area to maintain transfer case fluid containment.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks in Dodge Ram 1500, 2500, and 3500 trucks\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can cause transfer case damage\u003c\/li\u003e\n\u003cli\u003eAddresses wear-related seal failures due to heat and friction\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper lubrication and transfer case performance\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged output shaft seals to restore vehicle reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to avoid damaging the fluoro-elastomer seal during installation\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches the counter-clockwise spiral lip design for optimal sealing\u003c\/li\u003e\n\u003cli\u003eCheck for proper fit by confirming inside and outside diameters align with vehicle specifications\u003c\/li\u003e\n\u003cli\u003eConsult vehicle service manual for torque specifications and installation procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The 710902 seal is made from high-quality fluoro-elastomer material to withstand exposure to heat, oil, and mechanical stress. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448372166837,"sku":"BCZK-710902","price":28.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710902_Ang.jpg?v=1774734804"},{"product_id":"national-710917-transfer-case-output-shaft-seal","title":"National 710917 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710917\u003c\/h2\u003e\u003cp\u003eThe National 710917 transfer case output shaft seal is engineered to provide reliable sealing performance for select Nissan, Infiniti, and Suzuki vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.772 inches (45.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.724 inches (69.200 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.394 inches (10.000 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Polyacrylate for enhanced durability\u003c\/li\u003e\n\u003cli\u003eCompatible with transfer case housing bore of 2.717 inches (69.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710917 transfer case output shaft seal is part of the 710900 series, designed specifically for transfer case applications requiring a robust oil seal. Constructed from polyacrylate, this seal offers resistance to heat and wear, ensuring long-lasting performance in demanding automotive environments. The seal’s precise inside diameter of 1.772 inches (45 mm) fits the output shaft snugly, while the outside diameter of 2.724 inches (69.2 mm) matches the housing bore to prevent fluid leakage. With a thickness of 0.394 inches (10 mm), the seal maintains a secure fit and effective sealing surface.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal is compatible with a range of Nissan, Infiniti, and Suzuki models, including the Nissan Armada, Frontier, Pathfinder, Titan, and Xterra, as well as the Infiniti QX56 and Suzuki Equator. It is designed to replace worn or damaged seals in these vehicles’ transfer cases, helping to maintain proper lubrication and prevent contamination.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the National 710917 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low lubrication levels\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case damage due to contamination or debris ingress\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration caused by worn or failing seals\u003c\/li\u003e\n\u003cli\u003eMaintains proper pressure and fluid retention within the transfer case\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to transfer case output shaft seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case output shaft and housing bore are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal’s orientation matches manufacturer specifications to ensure proper sealing\u003c\/li\u003e\n\u003cli\u003eInspect the output shaft for wear or damage and replace if necessary before installing the new seal\u003c\/li\u003e\n\u003cli\u003eAfter installation, check for leaks during initial operation and re-tighten components as needed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The 710917 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448372986037,"sku":"BCZK-710917","price":21.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710917_Ang.jpg?v=1774734805"},{"product_id":"national-710918-transfer-case-output-shaft-seal","title":"National 710918 Transfer Case Output Shaft Seal - Front","description":"\u003ch2\u003eOverview of National Transfer Case Output Shaft Seal 710918\u003c\/h2\u003e\u003cp\u003eThe National 710918 transfer case output shaft seal is engineered for reliable sealing performance in select Nissan and INFINITI vehicles. Designed to maintain optimal fluid retention, this oil seal helps protect your transfer case from leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Nissan Murano, X-Trail, and INFINITI JX35 models\u003c\/li\u003e\n\u003cli\u003eConstructed from durable polyacrylate sealing material\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.496 inches (38.0 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 1.976 inches (50.2 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.866 inches (22.0 mm) \/ 0.854 inches (21.7 mm)\u003c\/li\u003e\n\u003cli\u003eHousing bore size: 1.969 inches (50.0 mm)\u003c\/li\u003e\n\u003cli\u003ePart number 710918 from National's 710900 series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Material Details\u003c\/h2\u003e\u003cp\u003eThis transfer case output shaft seal features a polyacrylate sealing material known for its resistance to heat and wear, ensuring a tight seal around the shaft. The seal’s inside diameter measures 1.496 inches (38 mm), fitting shafts approximately 1.535 inches (39 mm) in diameter. The outside diameter of 1.976 inches (50.2 mm) matches the housing bore size of 1.969 inches (50 mm), providing a precise fit to prevent fluid leakage. With a thickness of approximately 0.866 inches (22 mm), this seal is designed to withstand the operational pressures within the transfer case assembly.\u003c\/p\u003e\u003ch2\u003eApplication and Vehicle Compatibility\u003c\/h2\u003e\u003cp\u003eThis National transfer case output shaft seal is specifically compatible with the following vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNissan Murano\u003c\/li\u003e\n\u003cli\u003eNissan X-Trail\u003c\/li\u003e\n\u003cli\u003eINFINITI JX35\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUsing the correct seal, such as part number 710918, ensures proper fitment and function within the transfer case, helping maintain drivetrain integrity and performance.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the Transfer Case Output Shaft Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can lead to low fluid levels\u003c\/li\u003e\n\u003cli\u003eProtects internal components from dirt and debris contamination\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature transfer case wear due to fluid loss\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for output shaft bearings and gears\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs caused by seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710918 transfer case output shaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the sealing lip. Verify the seal orientation matches manufacturer specifications to maintain effective sealing. It is recommended to inspect the shaft for wear or damage before installation and replace if necessary to prevent premature seal failure.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet OEM standards for fit, form, and function. The polyacrylate material provides durability under typical operating conditions. Part number 710918 is part of National’s 710900 series, known for consistent quality in gaskets and sealing systems. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448373313717,"sku":"BCZK-710918","price":25.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710918_Ang.jpg?v=1774734805"},{"product_id":"national-710943-transfer-case-output-shaft-seal","title":"National 710943 Transfer Case Output Shaft Seal - Rear","description":"\u003ch2\u003eReliable Transfer Case Output Shaft Seal for Ram 2500 and 3500\u003c\/h2\u003e\u003cp\u003eThe National 710943 transfer case output shaft seal is engineered to provide durable sealing performance for Ram 2500 and 3500 models. Designed with precision dimensions and high-quality materials, this oil seal helps maintain transfer case integrity and prevents fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ram 2500 and 3500 transfer cases\u003c\/li\u003e\n\u003cli\u003eInside diameter: 2.323 inches (59.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 3.335 inches (84.700 mm)\u003c\/li\u003e\n\u003cli\u003eThickness: 0.472 inches (12.000 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer material\u003c\/li\u003e\n\u003cli\u003eHousing bore size: 3.327 inches (84.500 mm)\u003c\/li\u003e\n\u003cli\u003eOverall width with side lip: 1.969 inches (50.000 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 710943 transfer case output shaft seal is part of the 710900 series, designed specifically for transfer case applications requiring reliable oil sealing. Its bi-directional lip design ensures effective sealing against contaminants and fluid leakage in both rotational directions. The fluoro-elastomer sealing material offers resistance to heat, oil, and wear, making it suitable for the demanding environment inside the transfer case of Ram 2500 and 3500 trucks. With precise inside and outside diameters and thickness, this seal fits securely within the housing bore, maintaining proper sealing pressure and durability over time.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case fluid leaks that can cause damage to internal components\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that leads to premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the transfer case output shaft area\u003c\/li\u003e\n\u003cli\u003eAddresses seal failure issues due to aging or wear\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs by ensuring a tight seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 710943 transfer case output shaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without distortion. Verify the seal’s orientation matches the bi-directional lip design for optimal sealing performance. Lubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures on Ram 2500 and 3500 models.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precision engineering provide consistent sealing reliability. The 710943 part number is backed by National’s quality control processes to ensure fitment and function. Please refer to National’s warranty policy for coverage details on this transfer case output shaft seal.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448374558901,"sku":"BCZK-710943","price":38.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710943_Ang_f3af3fe5-3f49-4e27-8627-4210de86cd06.jpg?v=1774734808"},{"product_id":"national-711112-transfer-case-input-shaft-seal","title":"National 711112 Transfer Case Input Shaft Seal - Left","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 711112\u003c\/h2\u003e\u003cp\u003eThe National Transfer Case Input Shaft Seal 711112 is engineered to provide reliable sealing performance for transfer cases in select GM vehicles. Designed with a bi-directional lip and constructed from durable fluoro-elastomer material, this oil seal helps maintain optimal transfer case function in Buick, Chevrolet, GMC, Pontiac, and Saturn models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFlanged outside diameter: 2.421 inches (61.5 mm)\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 2.285 inches (58.05 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.293 inches (58.25 mm)\u003c\/li\u003e\n\u003cli\u003eShaft diameter compatibility: 1.772 inches (45 mm)\u003c\/li\u003e\n\u003cli\u003eSeal width: 0.486 inches (12.35 mm)\u003c\/li\u003e\n\u003cli\u003eBi-directional lip design for effective sealing\u003c\/li\u003e\n\u003cli\u003eConstructed from fluoro-elastomer for chemical and temperature resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe National 711112 transfer case input shaft seal is specifically designed to fit transfer cases in various GM vehicles including Buick Acadia, Chevrolet Equinox, GMC Terrain, Pontiac Torrent, and Saturn Vue. Its bi-directional lip design ensures effective sealing against oil leaks in both rotational directions, which is critical for maintaining transfer case integrity. The fluoro-elastomer material offers enhanced resistance to heat, oil, and other automotive fluids, extending the service life of the seal under demanding conditions.\u003c\/p\u003e\u003cp\u003eWith precise dimensions such as a 2.421-inch flanged outside diameter and a 1.772-inch shaft diameter, this seal fits securely within the housing bore of 2.285 inches, ensuring a tight and reliable fit. The 0.486-inch width provides adequate sealing surface area without compromising installation space.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case input shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage transfer case components\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper lubrication within the transfer case\u003c\/li\u003e\n\u003cli\u003eAddresses wear-related seal failures in Buick Acadia and Chevrolet Equinox transfer cases\u003c\/li\u003e\n\u003cli\u003eReplaces degraded seals in GMC Terrain and Pontiac Torrent models to restore transfer case performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the transfer case housing bore is clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into the housing bore to avoid damage\u003c\/li\u003e\n\u003cli\u003eVerify shaft and bore dimensions match the seal specifications for proper fit\u003c\/li\u003e\n\u003cli\u003eLubricate the seal lip lightly with compatible oil prior to installation to reduce initial wear\u003c\/li\u003e\n\u003cli\u003eInspect the transfer case input shaft for wear or damage before installing the new seal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet OEM specifications for fit and function. The fluoro-elastomer material and bi-directional lip design contribute to consistent sealing performance under typical operating conditions. Part number 711112 is part of the National 711100 series, known for its durability and reliability in transfer case sealing applications. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448382161077,"sku":"BCZK-711112","price":26.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_711112_Ang_aea717b4-0b53-40e1-9b9b-db9b96df8314.jpg?v=1774734817"},{"product_id":"national-711113-transfer-case-input-shaft-seal","title":"National 711113 Transfer Case Input Shaft Seal - Right","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 711113\u003c\/h2\u003e\u003cp\u003eThe National 711113 Transfer Case Input Shaft Seal is engineered to provide reliable sealing performance for transfer cases in select Buick, Chevrolet, GMC, Pontiac, and Saturn vehicles. Designed with a bi-directional lip, this oil seal ensures effective containment of lubricants and protection against contaminants.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBi-directional lip design for enhanced sealing efficiency\u003c\/li\u003e\n\u003cli\u003eConstructed from durable fluoro-elastomer material\u003c\/li\u003e\n\u003cli\u003eHousing bore diameter: 2.441 inches (62.000 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.449 inches (62.200 mm)\u003c\/li\u003e\n\u003cli\u003eShaft diameter: 1.890 inches (48.000 mm)\u003c\/li\u003e\n\u003cli\u003eSeal width: 0.650 inches (16.500 mm)\u003c\/li\u003e\n\u003cli\u003ePart number 711113, part of the 711100 series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThis transfer case input shaft seal features a fluoro-elastomer construction, known for its resistance to heat, oil, and chemical degradation, making it suitable for demanding automotive environments. The bi-directional lip design provides sealing capability in both rotational directions, reducing the risk of leaks. With precise dimensions including a 2.441-inch housing bore and a 1.890-inch shaft diameter, this seal is engineered to fit transfer cases on various models such as the Chevrolet Equinox, GMC Terrain, and Buick Enclave.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThe National 711113 seal is compatible with transfer cases on multiple GM makes and models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick Acadia and Acadia Limited\u003c\/li\u003e\n\u003cli\u003eChevrolet Captiva Sport, Equinox, and Traverse\u003c\/li\u003e\n\u003cli\u003eGMC Terrain and Torrent\u003c\/li\u003e\n\u003cli\u003ePontiac VUE\u003c\/li\u003e\n\u003cli\u003eSaturn Outlook\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis part is specifically designed to maintain transfer case integrity by preventing oil leaks and contamination in these vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from the transfer case input shaft\u003c\/li\u003e\n\u003cli\u003eProtects transfer case internals from dirt and debris ingress\u003c\/li\u003e\n\u003cli\u003eReduces wear caused by lubricant loss\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication pressure within the transfer case\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly transfer case repairs due to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 711113 transfer case input shaft seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal orientation matches the bi-directional lip design for optimal performance. It is recommended to inspect the transfer case components for wear or damage during installation and replace any compromised parts.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transfer case seals are manufactured to meet OEM specifications, ensuring reliable fit and function. The fluoro-elastomer material provides durability under high temperature and chemical exposure. This product is backed by National's quality standards, offering confidence in long-term performance. Please refer to National's warranty policy for specific coverage details.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448382324917,"sku":"BCZK-711113","price":37.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_711113_Ang.jpg?v=1774734817"}],"url":"https:\/\/www.partcatalog.com\/collections\/gaskets-and-sealing-systems-19.oembed","provider":"PartCatalog","version":"1.0","type":"link"}