SKF 12494 Drive Axle Shaft Seal - Front, Front Left or Front Right

SKF Drive Axle Shaft Seal 12494

SKF 12494 is a drive axle shaft seal built for front axle applications that need reliable fluid retention and contamination control. It uses a nitrile sealing surface and precise dimensions to match the shaft and housing interface on select Chevrolet, GMC, and Oldsmobile vehicles.

Key Features

• Drive axle shaft seal for front axle service
• Nitrile sealing surface for dependable contact at the shaft interface
• Width: 0.378 in.
• Outside diameter: 2.050 in.
• Shaft diameter: 1.248 in.
• SKF part number 12494 for direct identification

Fitment and Application

• Fits 1990-1996 Chevrolet Astro, front.
• Fits 1995-1996 Chevrolet Blazer, front.
• Fits 1994-1996 Chevrolet S10, front.
• Fits 1994-1996 GMC Jimmy, front.
• Fits 1990-1996 GMC Safari, front.
• Fits 1994-1996 GMC Sonoma, front.
• Fits 1996 Oldsmobile Bravada, front left.
• Fits 1991-1994 Oldsmobile Bravada, front left.
• Fits 1996 Oldsmobile Bravada, front right.
• Fits 1991-1994 Oldsmobile Bravada, front right.
• Fits 1994 Chevrolet S10 Blazer, front.
• Fits 1983-1993 Chevrolet S10, front, w/o Typhoon Pkg.
• Fits 1983-1993 Chevrolet S10 Blazer, front, w/o Typhoon Pkg.
• Fits 1992-1993 GMC Jimmy, front, w/o Typhoon Pkg.
• Fits 1991-1993 GMC Sonoma, front, w/o Typhoon Pkg.
• Fits 1983-1991 GMC S15 Jimmy, front, w/o Typhoon Pkg.
• Fits 1983-1990 GMC S15, front, w/o Typhoon Pkg.

This part cross-references GM10439577 and 14039577 for the same application.

What It Helps Address

• Gear oil leakage at the front axle shaft seal
• Contamination entering the axle housing
• Seal wear from shaft rotation and heat exposure
• Fluid loss that can affect driveline lubrication
• Service replacement needs on compatible Chevrolet, GMC, and Oldsmobile front axle applications

Installation Notes and Tips

Verify shaft diameter, outside diameter, and seal width before installation. Inspect the axle shaft and housing bore for scoring, corrosion, or debris, and clean the sealing surfaces thoroughly before fitting the new seal. Confirm left or right front position on Oldsmobile Bravada applications and check the vehicle configuration note for S10, S10 Blazer, Jimmy, Sonoma, S15 Jimmy, and S15 models without the Typhoon package.

Quality Assurance

SKF has a long history in seal engineering and has developed shaft seal designs for decades. This seal is manufactured to SKF specifications using premium materials selected for the application and operating environment.