{"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","url":"https:\/\/www.partcatalog.com\/products\/national-472635-transfer-case-output-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}