{"product_id":"skf-21395a-differential-pinion-seal-rear","title":"SKF 21395A Differential Pinion Seal - Rear","description":"\u003ch2\u003eReliable Differential Pinion Seal for Rear Axle Applications\u003c\/h2\u003e\u003cp\u003eThe SKF Differential Pinion Seal - Rear - Rear Axle (Part Number 21395A) is engineered to provide effective sealing performance for rear axle differentials. Designed specifically for select Cadillac, Chevrolet, and GMC models, this seal helps maintain drivetrain integrity by preventing fluid leaks and contamination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWidth: 0.571 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 3.197 inches ensuring proper sealing surface contact\u003c\/li\u003e\n\u003cli\u003eShaft Diameter: 2.146 inches tailored for rear axle pinion shafts\u003c\/li\u003e\n\u003cli\u003eSealing Surface Type: Polyacrylate material for enhanced durability and resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM vehicles including Escalade, Silverado 1500, and Yukon XL\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the SKF Differential Pinion Seal - Rear - Rear Axle Product Line\u003c\/h2\u003e\u003cp\u003eThe Differential Pinion Seal - Rear - Rear Axle product line by SKF focuses on delivering reliable sealing solutions for rear axle differentials. This line is designed to meet OEM specifications and provide consistent performance in demanding driveline environments. The 21395A seal is part of this line, offering a balance of material quality and dimensional accuracy to support long-term axle operation.\u003c\/p\u003e\u003ch2\u003eTechnical Details and Application\u003c\/h2\u003e\u003cp\u003eThis differential pinion seal features a polyacrylate sealing surface, which offers resistance to heat and wear commonly encountered in rear axle assemblies. The precise dimensions—0.571 inch width, 3.197 inch outside diameter, and 2.146 inch shaft diameter—ensure a secure fit on the pinion shaft, minimizing the risk of leaks. This part is compatible with a range of GM vehicles, including Cadillac Escalade and Escalade ESV, Chevrolet Express 2500 and 3500, GMC Sierra 1500, and Yukon XL models, making it a suitable replacement for maintaining rear axle sealing integrity.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by the SKF 21395A Differential Pinion Seal\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents differential fluid leaks from the rear axle pinion shaft\u003c\/li\u003e\n\u003cli\u003eReduces contamination ingress that can damage differential components\u003c\/li\u003e\n\u003cli\u003eMaintains proper lubrication levels within the differential housing\u003c\/li\u003e\n\u003cli\u003eHelps avoid premature wear of pinion bearings and gears\u003c\/li\u003e\n\u003cli\u003eSupports consistent drivetrain performance and noise reduction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the SKF 21395A differential pinion seal, ensure the mating surfaces are clean and free of debris. Proper alignment on the pinion shaft is critical to avoid seal damage. Use appropriate tools to press the seal evenly into the housing without distortion. Verify shaft diameter compatibility (2.146 inches) before installation to ensure a correct fit. Follow vehicle-specific service manual instructions for torque specifications and assembly procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSKF manufactures the 21395A differential pinion seal to meet stringent quality standards, ensuring reliable sealing performance under normal operating conditions. The polyacrylate sealing surface is selected for durability and resistance to common axle fluids. While specific warranty details are not provided, SKF products typically adhere to industry quality controls and are backed by the brand's reputation for engineering precision.\u003c\/p\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":52218737557685,"sku":"BCNB-21395A","price":20.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CR_21395A_Fro.jpg?v=1775665469","url":"https:\/\/www.partcatalog.com\/products\/skf-21395a-differential-pinion-seal-rear","provider":"PartCatalog","version":"1.0","type":"link"}