{"product_id":"national-51322-wheel-seal","title":"National 51322 Wheel Seal - Rear","description":"\u003ch2\u003eNational 51322 Wheel Seal Overview\u003c\/h2\u003e\u003cp\u003eThe National 51322 wheel seal is engineered for reliable sealing performance in driveline and axle applications. Designed specifically for Ford and Mercury vehicles, including the E-100 Econoline, Econoline, Mustang, and Villager models, this oil seal helps maintain proper lubrication and prevent contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInside diameter: 1.365 inches (34.670 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.085 inches (52.960 mm)\u003c\/li\u003e\n\u003cli\u003eWidth: 0.435 inches (11.050 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable nitrile rubber for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eRedicoat coating for enhanced corrosion protection\u003c\/li\u003e\n\u003cli\u003eSeries: 50000, Type: 5s\u003c\/li\u003e\n\u003cli\u003eHousing bore: 2.081 inches (52.860 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 51322 wheel seal features a nitrile rubber construction, which offers excellent resistance to petroleum-based fluids and high temperatures commonly found in automotive driveline systems. The seal’s precise dimensions—1.365 inch shaft diameter and 2.085 inch outside diameter—ensure a secure fit within the axle housing bore of 2.081 inches. The 0.435 inch width provides adequate sealing surface to prevent oil leaks and contamination ingress. Additionally, the Redicoat treatment enhances corrosion resistance, extending the service life of the seal in harsh operating environments.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis wheel seal is compatible with select Ford and Mercury models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord E-100 Econoline\u003c\/li\u003e\n\u003cli\u003eFord Econoline series\u003c\/li\u003e\n\u003cli\u003eFord Mustang\u003c\/li\u003e\n\u003cli\u003eMercury Villager\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is designed to replace OEM seals in these vehicles’ driveline and axle assemblies, ensuring proper sealing and lubrication retention.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by National 51322 Wheel Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents oil leaks from axle housing\u003c\/li\u003e\n\u003cli\u003eProtects bearings and internal components from dirt and moisture\u003c\/li\u003e\n\u003cli\u003eReduces risk of driveline contamination and premature wear\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication for axle shafts\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly 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 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 correct orientation of the seal lip facing the lubricant side\u003c\/li\u003e\n\u003cli\u003eCheck for proper fitment with the 1.365 inch shaft and 2.081 inch housing bore\u003c\/li\u003e\n\u003cli\u003eApply a light coating of lubricant on the seal lip to ease installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational wheel seals are manufactured to meet industry standards for durability and performance. The 51322 part 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":43448268980405,"sku":"BCZK-51322","price":25.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_51322_Fro_f2a8690a-8f68-41c4-8ee8-765b5c2d9623.jpg?v=1774734590","url":"https:\/\/www.partcatalog.com\/products\/national-51322-wheel-seal","provider":"PartCatalog","version":"1.0","type":"link"}