{"product_id":"national-40769s-wheel-seal","title":"National 40769S Wheel Seal - Front, Rear or Rear Inner","description":"\u003ch2\u003eNational 40769S Wheel Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 40769S wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with durable nitrile material, this oil seal is compatible with select Chevrolet, Dodge, and Ford vehicles, including Bronco, F-100, F-250, F-350, K10 Suburban, K20, K20 Suburban, and Ramcharger models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.312 inches (33.320 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.286 inches (58.060 mm)\u003c\/li\u003e\n\u003cli\u003eThickness\/width: 0.250 inches (6.350 mm)\u003c\/li\u003e\n\u003cli\u003eSealing material: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eHousing bore size: 2.282 inches (57.960 mm)\u003c\/li\u003e\n\u003cli\u003ePart type: 4s oil seal from National's 40000 series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 40769S wheel seal is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and fluids, making it suitable for axle and driveline sealing applications. The seal features an inside diameter of 1.312 inches (33.320 mm) and an outside diameter of 2.286 inches (58.060 mm), with a thickness of 0.250 inches (6.350 mm). This precise sizing ensures a secure fit within the housing bore of 2.282 inches (57.960 mm), providing effective sealing against contaminants and fluid leaks.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis wheel seal is compatible with a range of classic and heavy-duty vehicles, including Chevrolet Bronco, Dodge Ramcharger, and Ford trucks such as the F-100, F-250, F-350, K10 Suburban, K20, and K20 Suburban. The National 40769S is designed to meet the sealing requirements of these models, ensuring proper axle and driveline function.\u003c\/p\u003e\u003ch2\u003eCommon Uses and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from axle housings\u003c\/li\u003e\n\u003cli\u003eProtects driveline components from dirt and debris\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within wheel assemblies\u003c\/li\u003e\n\u003cli\u003eReduces wear on axle shafts and bearings\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\u003cp\u003eWhen installing the National 40769S wheel seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the seal orientation matches the original part to maintain proper sealing function. Lubricate the seal lip lightly with compatible oil before installation to reduce initial wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eManufactured by National, a trusted name in sealing solutions, the 40769S wheel seal adheres to strict quality standards for durability and performance. The nitrile material offers resistance to oil and environmental factors, contributing to long service life. Warranty coverage details should be confirmed with the product documentation or supplier.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448265932981,"sku":"BCZK-40769S","price":24.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_40769S_Fro_9c17d8a6-3f60-42de-a00f-bbc4a64e92a1.jpg?v=1774734586","url":"https:\/\/www.partcatalog.com\/products\/national-40769s-wheel-seal","provider":"PartCatalog","version":"1.0","type":"link"}