FAG SS2139 Power Steering Pump Shaft Seal

Power Steering Pump Shaft Seal for Ford and Chrysler Applications

FAG SS2139 is a power steering pump shaft seal built with a nitrile sealing element, metal reinforcement, spring tension, and an auxiliary lip for controlled sealing at the pump shaft. With a 1.25 in bore diameter, 1.254 in outside diameter, and 0.688 in width, it is sized for specific steering pump service applications across a wide range of Ford, Lincoln, Mercury, Chrysler, Dodge, Cadillac, Chevrolet, Buick, Oldsmobile, Pontiac, and related vehicles.

Key Features

• Part number SS2139 for steering pump shaft sealing service
• Nitrile sealing material for fluid resistance in power steering applications
• Metal, spring, and auxiliary lip seal design
• 1.25 in bore diameter, 1.254 in outside diameter, 0.688 in width
• Cross-references National 8773S and SKF 6765 for the same application
• Fits a broad range of classic and late-model Ford, Lincoln, and Mercury vehicles

Detailed Description

FAG SS2139 is engineered to seal the pump shaft area and help maintain proper steering system fluid retention. The nitrile sealing material is paired with a spring-loaded, metal-supported design to maintain contact at the shaft surface, while the auxiliary lip adds another sealing barrier. This makes the seal a practical choice for power steering pump repair on vehicles such as the Ford Taurus, Ford Mustang, Ford F-150, Ford Bronco, Lincoln Town Car, and Mercury Cougar. The part number SS2139 is also listed under interchange references including National 8773S and SKF 6765.

Fits 1986-2003 Ford Taurus, N/A. Fits 1979-1999 Ford Mustang, N/A. Fits 1993-1996 Ford Bronco, N/A. Fits 1975-1996 Ford F-150, N/A. Fits 1974-1996 Ford F-250, N/A. Fits 1981-1990 Lincoln Town Car, N/A. Fits 1967-1996 Mercury Cougar, N/A.

What It Helps Address

• Power steering fluid leakage at the pump shaft
• Loss of steering assist caused by seal wear
• Contamination entering the pump sealing area
• Grease or fluid loss around the steering pump shaft
• Service issues on older Ford, Lincoln, Mercury, Chrysler, and GM vehicles

Installation Notes and Tips

Verify shaft diameter, bore diameter, and seal width before installation. Clean the pump housing and shaft thoroughly, and inspect the shaft surface for scoring or wear that could affect sealing performance. Confirm vehicle application by year, make, and model, since SS2139 is used across many steering pump configurations. For fitment verification, match the vehicle listing and any application notes before assembly.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. The seal construction is intended for demanding wheel-end and sealing service conditions, with materials selected to help protect components from contamination and fluid loss over the service life of the bearing or pump assembly.