FAG SS3148 Steering Knuckle Seal - Front

Steering Knuckle Seal for Front Wheel End Service

FAG SS3148 is a front steering knuckle seal built for wheel-end sealing performance on a wide range of Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Isuzu applications. It is designed to help keep contamination out of the bearing area while retaining grease at the wheel end.

Key Features

• Seal type: metal with auxiliary lip
• Sealing material: nitrile
• Bore diameter: 2.738 in. / 69.545 mm
• Seal outside diameter: 2.741 in. / 69.621 mm
• Seal width: 2.201 in. / 5.004 mm
• Built to meet vehicle manufacturer specifications for the listed applications

Detailed Description

The FAG SS3148 steering knuckle seal is engineered for front wheel-end use where a precise seal is needed to protect bearing components from dirt, dust, and moisture. Its metal-and-auxiliary-lip design with nitrile sealing material supports grease retention and helps maintain sealing integrity in demanding service conditions. This part number is used across many front applications, including Chevrolet S10, Chevrolet Blazer, and GMC Jimmy models, as well as related Sonoma, Bravada, and other listed vehicles. This part cross-references Anchor 3553 for the same application.

What It Helps Address

• Grease loss at the wheel end
• Contamination from road dirt and dust
• Moisture intrusion around the bearing area
• Seal wear on front steering knuckle service jobs
• Replacement needs on Chevrolet S10 and GMC Jimmy front applications

Installation Notes and Fitment

Verify bore diameter, outside diameter, and seal width before installation. Clean the sealing surfaces thoroughly and inspect the hub, knuckle, and bearing area for wear or damage before assembly. Compatible front fitment includes: Fits 1995-2005 Chevrolet Blazer, Front; Fits 1991-2005 GMC Jimmy, Front; Fits 1983-1988 GMC Jimmy, Front; Fits 1995-2004 Chevrolet S10, Front; Fits 1983-1993 Chevrolet S10, Front; Fits 1994-2004 GMC Sonoma, Front; Fits 1991 GMC Sonoma, Front; Fits 1998-2000 Isuzu Hombre, Front; Fits 1994 Chevrolet S10, Front; Fits 1983-1994 Chevrolet S10 Blazer, Front; Fits 1991-1994 Oldsmobile Bravada, Front; Fits 1992-1993 GMC Sonoma, Front; Fits 1983-1991 GMC S15 Jimmy, Front; Fits 1989-1990 GMC Jimmy, Front, Non-ABS; Fits 1983-1990 GMC S15, Front; Fits 1979-1985 Buick Riviera, Front; Fits 1979-1985 Cadillac Eldorado, Front; Fits 1980-1985 Cadillac Seville, Front; Fits 1979-1985 Oldsmobile Toronado, Front.

Quality Assurance

FAG designs wheel seals using high-quality materials and application-specific specifications to support proper wheel-end sealing performance. The SS3148 is built to the dimensional and material requirements called out for the listed vehicles.