{"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","url":"https:\/\/www.partcatalog.com\/products\/national-710653-transfer-case-output-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}