{"product_id":"skf-21285-differential-pinion-seal","title":"SKF 21285 Differential Pinion Seal - Rear","description":"\u003ch2\u003eReliable Differential Pinion Seal for Select GM and Isuzu Vehicles\u003c\/h2\u003e\u003cp\u003eThe SKF 21285 Differential Pinion Seal is engineered to provide durable sealing performance for a range of driveline applications. Designed with precise dimensions and a longlife sealing surface, this seal is compatible with various Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWidth: 0.500 inches for optimal fit\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 2.767 inches ensuring proper housing compatibility\u003c\/li\u003e\n\u003cli\u003eShaft Diameter: 2.125 inches matching OEM specifications\u003c\/li\u003e\n\u003cli\u003eLonglife sealing surface type for extended service intervals\u003c\/li\u003e\n\u003cli\u003ePart number 21285 for accurate identification and replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe SKF 21285 Differential Pinion Seal is designed to maintain a secure seal around the pinion shaft, preventing lubricant leaks and contamination ingress. Its 0.500-inch width and 2.767-inch outside diameter provide a precise fit for differential housings on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, and Isuzu Ascender. The 2.125-inch shaft diameter matches the pinion shaft dimensions of these models, ensuring reliable sealing performance. The longlife sealing surface type enhances durability, reducing the need for frequent replacements in demanding driveline environments.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis differential pinion seal is compatible with a variety of GM and related vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick Rainier\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche, Avalanche 1500, Blazer, C1500, C1500 Suburban, Silverado 1500, Silverado 1500 HD, Suburban 1500, Tahoe, Trailblazer, Trailblazer EXT\u003c\/li\u003e\n\u003cli\u003eGMC Envoy, Envoy XL, Envoy XUV, Jimmy, K1500, K1500 Suburban, Sierra 1500, Sierra 1500 HD, Sonoma, Yukon, Yukon XL 1500\u003c\/li\u003e\n\u003cli\u003eHummer H3\u003c\/li\u003e\n\u003cli\u003eIsuzu Axiom, Hombre, 9-7x\u003c\/li\u003e\n\u003cli\u003eSaab 9-7x\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by the SKF 21285 Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents differential oil leaks that can cause driveline damage\u003c\/li\u003e\n\u003cli\u003eProtects pinion shaft bearings from dirt and moisture contamination\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication within the differential assembly\u003c\/li\u003e\n\u003cli\u003eReduces risk of premature wear on differential components\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to seal failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the differential housing and pinion shaft are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eUse appropriate tools to press the seal evenly into place without distortion\u003c\/li\u003e\n\u003cli\u003eVerify the seal orientation matches OEM specifications for proper sealing surface contact\u003c\/li\u003e\n\u003cli\u003eCheck shaft diameter and housing bore to confirm compatibility with part number 21285\u003c\/li\u003e\n\u003cli\u003eInspect surrounding components for wear or damage during replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSKF manufactures the 21285 Differential Pinion Seal to meet strict quality standards, ensuring reliable performance in demanding automotive applications. The longlife sealing surface is designed to provide extended service intervals under normal operating conditions. While specific warranty terms may vary, SKF products typically come with manufacturer-backed quality guarantees to support professional installations and maintenance.\u003c\/p\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":43744344866997,"sku":"BCNB-21285","price":20.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CR_21285_Ang_4f8f81fc-b2b7-4b8b-927a-7d5609b3bc4a.jpg?v=1774993913","url":"https:\/\/www.partcatalog.com\/products\/skf-21285-differential-pinion-seal","provider":"PartCatalog","version":"1.0","type":"link"}