FAG SS2791 Automatic Transmission Oil Pump Seal - Front, Rear or Rear Inner

Automatic Transmission Oil Pump Seal for Ford and Buick Applications

The FAG SS2791 is an automatic transmission oil pump seal built with a metal and spring seal design and nitrile sealing material. It is specified for select Ford, Buick, and Cadillac applications where the seal must retain transmission fluid and maintain a reliable seal at the pump interface.

Key Features

• Part number SS2791 for transmission service and repair
• Seal type: metal with spring for stable sealing performance
• Nitrile sealing material for fluid resistance in transmission use
• Bore diameter: 2.502 in. / 63.551 mm
• Seal outside diameter: 2.506 in. / 63.652 mm
• Seal width: 1.75 in. / 44.45 mm
• Compatible with select Ford F-350, Ford Econoline, Buick LeSabre, Buick Riviera, Buick Century, Buick Roadmaster, and Cadillac applications

Detailed Description

FAG SS2791 is a transmission oil pump seal used in specific automatic transmission service applications where correct sealing dimensions matter. The listed bore diameter, outside diameter, and width help identify the proper replacement for the pump seal location. This part cross-references Carlson 17386 and Timken 450494 for the same application. Fits 1973-1978 Ford F-350, front, Clark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100. Fits 1967 Ford Econoline, front, Schaeffler Seal Global Number 413 2791 100. Fits 1959-1963 Buick LeSabre, N/A, w/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100. Fits 1963 Buick Riviera, N/A, w/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100. Fits 1954-1958 Buick Century, N/A, w/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100. Fits 1950-1958 Buick Roadmaster, N/A, w/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100. Fits 1953 Cadillac Commercial Chassis, N/A, Dynaflow Transmission; Schaeffler Seal Global Number 413 2791 100. Fits 1953 Cadillac DeVille, N/A, Dynaflow Transmission; Schaeffler Seal Global Number 413 2791 100.

What This Seal Helps Address

• Transmission fluid leakage at the oil pump seal area
• Loss of sealing integrity from worn or hardened seal material
• Contamination entry at the pump interface
• Service issues caused by incorrect seal dimensions
• Repair needs on select Ford F-350, Ford Econoline, Buick, and Cadillac transmissions

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width against the original part before installation. Confirm transmission type and vehicle application, especially on Buick models listed without Triple Turbine transmission and Cadillac models with Dynaflow transmission. Clean the sealing surface thoroughly and inspect the pump area for wear or scoring before installing SS2791.

Quality Assurance

FAG specifies this seal using manufacturer-level dimensional and material requirements for the listed applications. The metal and spring construction with nitrile sealing material is selected for transmission sealing service where consistent fit and fluid control are required.