InMotion WS4762N Wheel Seal - Rear

Rear Differential Pinion Seal for GM Trucks and SUVs

InMotion WS4762N is a rear differential pinion seal built to help keep gear oil contained while blocking dirt and moisture from entering the pinion area. It is a direct-fit sealing component for a wide range of Chevrolet, GMC, Cadillac, and related rear axle applications.

• Polyacrylate sealing material for durable fluid resistance
• Spring material: SAE 1008 for consistent sealing tension
• Seal case material: SAE 1070
• Dimensions: 1.619 in shaft diameter, 2.841 in housing bore, 0.500 in width
• External markings: 1.619 x 2.841 x 0.500
• Rear axle application for multiple GM platforms

Built Around the Seal Specifications

This differential pinion seal is engineered around precise dimensional requirements to support a tight fit at the pinion opening. The polyacrylate sealing lip, paired with an SAE 1008 spring and SAE 1070 seal case, is specified to maintain contact at the shaft while helping protect sensitive internal differential components from contamination. InMotion WS4762N is used on rear applications across models such as Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade, including select 8.5-inch and 8.625-inch ring gear configurations noted in the fitment data.

This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

Vehicle Fitment Highlights

• Fits 2002-2018 Cadillac Escalade, rear
• Fits 1999-2000 Cadillac Escalade, rear
• Fits 2003-2018 Cadillac Escalade ESV, rear
• Fits 2008-2018 Chevrolet Silverado 1500, rear
• Fits 1999-2000 Chevrolet Silverado 1500, rear
• Fits 2007-2018 Chevrolet Tahoe, rear
• Fits 2008-2018 GMC Sierra 1500, rear
• Fits 1999-2000 GMC Sierra 1500, rear
• Fits 1992-2018 GMC Yukon, rear
• Fits 2015-2018 GMC Yukon XL, rear
• Fits 1996-2014 Chevrolet Express 1500, rear
• Fits 2000-2014 Chevrolet Suburban 1500, rear
• Fits 1996-2014 GMC Savana 1500, rear
• Fits 2000-2014 GMC Yukon XL 1500, rear
• Fits 2002-2013 Cadillac Escalade EXT, rear
• Fits 2007-2013 Chevrolet Avalanche, rear
• Fits 2004-2012 Chevrolet Colorado, rear
• Fits 2004-2012 GMC Canyon, rear
• Fits 2006-2010 Hummer H3, rear
• Fits 2009-2010 Hummer H3T, rear
• Fits 2002-2009 Chevrolet Trailblazer, rear
• Fits 2002-2009 GMC Envoy, rear
• Fits 2005-2009 Saab 9-7x, rear
• Fits 2003-2008 Isuzu Ascender, rear
• Fits 2007-2008 Isuzu i-290, rear
• Fits 2007-2008 Isuzu i-370, rear
• Fits 2004-2007 Buick Rainier, rear
• Fits 2001-2007 Chevrolet Silverado 1500, rear, with 8.625in Ring Gear
• Fits 2007 Chevrolet Silverado 1500 Classic, rear, with 8.625in Ring Gear
• Fits 2001-2007 GMC Sierra 1500, rear, with 8.625in Ring Gear
• Fits 2007 GMC Sierra 1500 Classic, rear, with 8.625in Ring Gear
• Fits 2002-2006 Chevrolet Avalanche 1500, rear
• Fits 2003-2006 Chevrolet SSR, rear
• Fits 1995-2006 Chevrolet Tahoe, rear, with 8.5in Ring Gear
• Fits 2002-2006 Chevrolet Trailblazer EXT, rear
• Fits 2002-2006 GMC Envoy XL, rear
• Fits 2006 Isuzu i-280, rear
• Fits 2006 Isuzu i-350, rear
• Fits 2003-2005 Chevrolet Astro, rear
• Fits 2004-2005 GMC Envoy XUV, rear
• Fits 2003-2005 GMC Safari, rear
• Fits 2002-2004 Oldsmobile Bravada, rear
• Fits 1995-2003 Chevrolet S10, rear, with Limited Slip Differential
• Fits 1995-2003 GMC Sonoma, rear, with Limited Slip Differential
• Fits 1988-1999 Chevrolet C1500, rear, with 8.5in Ring Gear
• Fits 1992-1999 Chevrolet C1500 Suburban, rear, with 8.5in Ring Gear
• Fits 1988-1999 Chevrolet K1500, rear, with 8.5in Ring Gear
• Fits 1992-1999 Chevrolet K1500 Suburban, rear, with 8.5in Ring Gear
• Fits 1988-1999 GMC C1500, rear, with 8.5in Ring Gear
• Fits 1992-1999 GMC C1500 Suburban, rear, with 8.5in Ring Gear
• Fits 1988-1999 GMC K1500, rear, with 8.5in Ring Gear
• Fits 1992-1999 GMC K1500 Suburban, rear, with 8.5in Ring Gear
• Fits 1992-1994 Chevrolet Blazer, rear

What This Seal Helps Address

• Rear differential gear oil leakage at the pinion opening
• Contamination from road debris and moisture entering the differential
• Seal wear that can lead to reduced sealing tension
• Maintenance needs on GM rear axle service jobs
• Replacement during differential noise or fluid-loss diagnosis

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and width before installation to match the axle housing and pinion dimensions. Inspect the pinion surface for wear, scoring, or corrosion before installing the new seal, and verify the rear axle configuration, including ring gear size or limited-slip notes where listed in the fitment data. For best results, install on a clean, dry housing and check for proper seal seating after assembly.

Quality Assurance

InMotion manufactures this seal with specified materials and dimensions to support consistent fitment across the listed rear differential applications. The part number WS4762N is identified for direct reference when matching the correct seal to the vehicle and axle configuration.