FAG SS2923 Differential Pinion Seal - Rear or Rear Rearward

FAG SS2923 Differential Pinion Seal

The FAG SS2923 differential pinion seal is built for rear axle sealing applications that demand accurate dimensions and durable sealing materials. It uses Viton sealing material with a metal, spring, and auxiliary lip design to help maintain a tight seal at the pinion area and protect driveline components from contamination.

Key Features

• Part number: SS2923
• Seal type: metal, spring, auxiliary lip
• Sealing material: Viton
• Bore diameter: 3.157 in. / 80.188 mm
• Seal outside diameter: 3.162 in. / 80.315 mm
• Seal width: 1.875 in. / 47.625 mm
• Engineered to help retain lubricant and block dirt, dust, and moisture
• Cross-references National 100715V and Gates 18741 for the same application

Detailed Description

FAG SS2923 is a differential pinion seal designed for rear axle service where precise fit and dependable sealing are critical. The Viton sealing material is selected for demanding operating conditions, while the metal case, spring tension, and auxiliary lip help maintain contact at the sealing surface. This seal is used in a wide range of rear applications, including Ford E-350 Super Duty, Ford E-250, Ford E-150, Dodge Viper, Chevrolet Express, GMC Savana, Corvette, Silverado, Avalanche, Colorado, and related rear axle configurations. The part number SS2923 is also referenced by National 100715V and Gates 18741.

Common Problems This Seal Helps Address

• Gear oil leakage at the differential pinion area
• Contamination from road dirt, dust, and moisture
• Loss of lubricant around the rear axle seal surface
• Wear related to aging or hardened original seals
• Service issues on rear axle assemblies with the listed ring gear configurations

Installation Notes and Fitment

Compatible with confirmed rear and rear outer applications only. Fits 2021-2025 Ford E-350 Super Duty, rear outer; 2015-2019 Ford E-350 Super Duty, rear outer; 2001-2005 Ford E-350 Super Duty, rear outer; 2015-2017 Dodge Viper, rear; 2008-2010 Dodge Viper, rear; 2001-2006 Dodge Viper, rear; 2009-2014 Ford E-150, rear rearward; 2008-2014 Ford E-150, rear; 2006-2014 Ford E-250, rear; 2006-2014 Ford E-350 Super Duty, rear; 2010-2013 Chevrolet Express 2500, rear outer; 2010-2013 GMC Savana 2500, rear outer; 2010 Chevrolet Express 3500, rear outer; 2010 GMC Savana 3500, rear outer; 2002 GMC Savana 3500, rear outer; 2003-2009 Chevrolet Express 1500, rear; 2003-2009 Chevrolet Express 2500, rear; 2003-2009 Chevrolet Express 3500, rear; 2003-2009 GMC Savana 1500, rear; 2003-2009 GMC Savana 2500, rear; 2003-2009 GMC Savana 3500, rear; 2007-2008 Chevrolet Avalanche, rear; 2004-2008 Chevrolet Colorado, rear; 2001-2008 Chevrolet Corvette, rear; 2006-2008 Chevrolet Express 1500, rear; 1998-2003 Chevrolet Express 1500, rear; 2008 Chevrolet Express 3500, rear; 2001-2008 Chevrolet Express 3500, rear; 2007-2008 Chevrolet Silverado 1500, rear; 2007 Chevrolet Silverado 1500 Classic, rear; 2007 Chevrolet Silverado 1500 HD Classic, rear; 2002-2006 Chevrolet Avalanche 1500, rear; 2005-2006 Chevrolet Silverado 1500 HD, rear; 2001-2003 Chevrolet Silverado 1500 HD, rear; 2004-2005 Chevrolet Classic, rear; 2003-2005 Ford E-250, rear outer; 2003-2005 Ford E-350 Club Wagon, rear outer; 2001-2004 Chevrolet S10, rear; 2001-2003 Chevrolet Chevy Pickup, rear; 2001-2002 Chevrolet Express 1500, rear; 2001-2002 Chevrolet Express 2500, rear; 2001-2002 Chevrolet Express 3500, rear; 2001-2002 Ford E-250 Econoline, rear outer; 2001-2002 Ford E-350 Econoline Club Wagon, rear outer; 2001 Chevrolet C1500, rear; 1999 Chevrolet Express 2500, rear.

For best results, verify axle configuration, ring gear size, and seal dimensions before installation. Clean the sealing bore and shaft surface thoroughly, and inspect the pinion area for wear or scoring that could affect seal life.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards for sealing performance and dimensional accuracy.