{"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","url":"https:\/\/www.partcatalog.com\/products\/national-223802-transfer-case-output-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}