{"product_id":"national-710956-transfer-case-input-shaft-seal","title":"National 710956 Transfer Case Input Shaft Seal","description":"\u003ch2\u003eOverview of National Transfer Case Input Shaft Seal 710956\u003c\/h2\u003e\u003cp\u003eThe National 710956 transfer case input shaft seal is engineered to provide reliable sealing performance for select Lexus and Toyota models. Designed with precision dimensions and durable ethylene-acrylic material, this oil seal helps maintain transfer case integrity and prevent fluid leaks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Lexus Land Cruiser, LX570 and Toyota Sequoia, Tundra transfer cases\u003c\/li\u003e\n\u003cli\u003eInside diameter: 1.969 inches (50 mm) to fit 40-type shafts\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 2.803 inches (71.2 mm) for secure housing bore fit\u003c\/li\u003e\n\u003cli\u003eThickness: 0.394 inches (10 mm) with overall width including side lip of 0.689 inches (17.5 mm)\u003c\/li\u003e\n\u003cli\u003eClockwise-spiral lip design for effective sealing and reduced wear\u003c\/li\u003e\n\u003cli\u003eConstructed from ethylene-acrylic sealing material for durability and resistance to oil degradation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 710956 transfer case input shaft seal is part of the 710900 series, designed specifically for transfer case applications requiring a 40-type shaft seal. Its inside diameter of 1.969 inches (50 mm) matches the shaft size of compatible Lexus and Toyota transfer cases, ensuring a precise fit. The outside diameter of 2.803 inches (71.2 mm) corresponds closely with the housing bore dimensions, measured at 2.795 inches (71 mm), to provide a tight seal that prevents oil leakage.\u003c\/p\u003e\u003cp\u003eThe seal features a clockwise-spiral lip design, which enhances sealing efficiency by directing fluid away from the shaft and reducing the risk of contamination ingress. Made from ethylene-acrylic material, the seal offers resistance to heat, oil, and wear, contributing to longer service life under demanding operating conditions.\u003c\/p\u003e\u003ch2\u003eApplications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents transfer case oil leaks in Lexus Land Cruiser and LX570 models\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication in Toyota Sequoia and Tundra transfer cases\u003c\/li\u003e\n\u003cli\u003eReduces risk of transfer case input shaft seal failure due to wear or damage\u003c\/li\u003e\n\u003cli\u003eHelps avoid contamination and debris ingress that can cause transfer case damage\u003c\/li\u003e\n\u003cli\u003eSupports smooth transfer case operation by maintaining fluid integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the transfer case housing bore is clean and free of debris before installing the National 710956 seal. Use appropriate tools to press the seal evenly into the bore without distortion. Verify the seal’s orientation matches the clockwise-spiral lip design for optimal sealing performance. Avoid using excessive force during installation to prevent damage to the ethylene-acrylic material.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational transfer case input shaft seals are manufactured to meet industry standards for durability and performance. The 710956 seal undergoes quality control inspections to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, National products typically adhere to OEM-equivalent quality requirements for reliable service in Lexus and Toyota transfer case applications.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":51869018292405,"sku":"BCZK-710956","price":15.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_710956_Ang.jpg?v=1774734808","url":"https:\/\/www.partcatalog.com\/products\/national-710956-transfer-case-input-shaft-seal","provider":"PartCatalog","version":"1.0","type":"link"}