{"product_id":"skf-21955-differential-pinion-seal-rear","title":"SKF 21955 Differential Pinion Seal - Rear","description":"\u003ch2\u003eReliable Differential Pinion Seal for Chevrolet and GMC Vehicles\u003c\/h2\u003e\u003cp\u003eThe SKF 21955 differential pinion seal is engineered to provide a precise fit and durable sealing performance for a range of Chevrolet and GMC trucks and vans. Designed with nitrile sealing surfaces, this seal helps maintain optimal driveline integrity by preventing leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWidth: 0.591 inches for compact and effective sealing\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 3.523 inches ensuring proper fit in differential housing\u003c\/li\u003e\n\u003cli\u003eShaft Diameter: 2.201 inches matching OEM specifications\u003c\/li\u003e\n\u003cli\u003eSealing Surface Type: Nitrile for resistance to oil and wear\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple Chevrolet and GMC models including C20, K1500, and Savana 3500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Material Specifications\u003c\/h2\u003e\u003cp\u003eThe SKF 21955 differential pinion seal features a nitrile sealing surface, known for its resistance to petroleum-based fluids and durability under high temperatures. The precise dimensions—0.591 inch width, 3.523 inch outside diameter, and 2.201 inch shaft diameter—ensure a secure fit that minimizes the risk of leaks in the differential pinion area. This seal is designed to maintain the integrity of the driveline by preventing oil leakage and protecting internal components from dirt and debris.\u003c\/p\u003e\u003ch2\u003eCompatible Chevrolet and GMC Models\u003c\/h2\u003e\u003cp\u003eThis differential pinion seal is compatible with a wide range of Chevrolet and GMC vehicles, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet C20, C20 Suburban, C1500, C2500, C3500\u003c\/li\u003e\n\u003cli\u003eGMC K20, K1500, K2500, K3500\u003c\/li\u003e\n\u003cli\u003eExpress 2500, Express 3500 vans\u003c\/li\u003e\n\u003cli\u003eSavana 2500, Savana 3500\u003c\/li\u003e\n\u003cli\u003eR10, R20, R30 Suburban models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThe SKF 21955 differential pinion seal is used to address several driveline issues, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePreventing differential oil leaks that can lead to component damage\u003c\/li\u003e\n\u003cli\u003eReducing contamination from dirt and debris entering the differential\u003c\/li\u003e\n\u003cli\u003eMaintaining proper lubrication within the differential assembly\u003c\/li\u003e\n\u003cli\u003eMinimizing wear on the pinion shaft and bearings\u003c\/li\u003e\n\u003cli\u003eEnsuring consistent driveline performance and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the SKF 21955 differential pinion seal, ensure the sealing surface is clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the shaft diameter and housing dimensions match the seal specifications for a proper fit. Lubricate the seal lip lightly with gear oil before installation to reduce initial wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSKF manufactures the 21955 differential pinion seal to meet strict quality standards, ensuring reliable performance in demanding automotive applications. While specific warranty details are not provided, SKF products are generally backed by robust quality control processes to support durability and fitment accuracy.\u003c\/p\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":52218737655989,"sku":"BCNB-21955","price":19.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CR_21955_Fro.jpg?v=1775665470","url":"https:\/\/www.partcatalog.com\/products\/skf-21955-differential-pinion-seal-rear","provider":"PartCatalog","version":"1.0","type":"link"}