HomeTransmission > Gaskets and Sealing SystemsFAG SS2791 Automatic Transmission Oil Pump Seal - Front, Rear or Rear Inner
Part #: SS2791

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

Front, Rear, and Rear Inner
⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Cadillac, and Ford, Century, Commercial Chassis, DeVille, Econoline, F-350, LeSabre, Riviera, and Roadmaster
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Reliable Automatic Transmission Oil Pump Seal for Buick, Cadillac, and Ford

The FAG SS2791 automatic transmission oil pump seal is engineered to provide precise sealing performance for select Buick, Cadillac, and Ford models. Designed with durable nitrile sealing material and a metal spring seal type, this component ensures effective oil retention and transmission reliability.

  • Seal Type: Metal with spring for secure fit and durability
  • Sealing Material: Nitrile for resistance to heat and oil degradation
  • Bore Diameter: 2.502 inches (63.551 mm) for accurate fitment
  • Seal Outside Diameter: 2.506 inches (63.652 mm) ensuring tight sealing
  • Seal Width: 1.75 inches (9.423 mm) for optimal sealing surface

Technical Details and Specifications

The FAG SS2791 automatic transmission oil pump seal features a metal spring design that maintains consistent pressure against the bore, preventing leaks and maintaining transmission fluid integrity. The nitrile sealing material offers excellent resistance to transmission fluids and high operating temperatures, making it suitable for demanding automotive environments. With precise bore and outside diameters, this seal fits tightly within the transmission assembly, reducing the risk of fluid loss and component wear.

Compatible Vehicles and Applications

This transmission oil pump seal is compatible with various Buick, Cadillac, and Ford vehicles, including Buick Century, LeSabre, and Riviera; Cadillac DeVille and Roadmaster; and Ford Econoline, F-350, and Commercial Chassis models. The part number SS2791 ensures correct fitment for these specific applications, supporting reliable transmission operation.

  • Prevents transmission fluid leaks in automatic transmission oil pumps
  • Reduces risk of transmission overheating due to fluid loss
  • Maintains hydraulic pressure for smooth gear shifting
  • Protects transmission components from contamination
  • Addresses seal wear and degradation in older transmissions

Installation Notes and Tips

When installing the FAG SS2791 seal, ensure the transmission housing bore is clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches the original part to maintain proper sealing function. It is recommended to inspect related transmission components for wear during replacement.

Quality Assurance and Warranty

FAG manufactures the SS2791 seal to meet stringent automotive standards, ensuring consistent performance and durability. The use of high-quality nitrile material and metal spring construction supports long service life under normal operating conditions. Warranty details are provided by the manufacturer and should be consulted for specific coverage information.

BrandFAG
Part NumberSS2791
40531.75
405344.45
Seal TypeMetal; spring
Sealing MaterialNitrile
Bore Diameter2.502
Bore Diameter63.551
Seal Outside Diameter2.506
Seal Outside Diameter63.652
Seal Width1.75
Seal Width9.423

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
1978FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1977FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1976FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1975FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1974FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1973FordF-350FrontClark Trans.; 5 Spd.; Schaeffler Seal Global Number 413 2791 100
1967FordEconolineFrontSchaeffler Seal Global Number 413 2791 100
1963BuickLeSabreN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1963BuickRivieraN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1962BuickLeSabreN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1961BuickLeSabreN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1960BuickLeSabreN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1959BuickLeSabreN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1958BuickCenturyN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1958BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1957BuickCenturyN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1957BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1956BuickCenturyN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1956BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1955BuickCenturyN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1955BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1954BuickCenturyN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1954BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1953BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1953CadillacCommercial ChassisN/ADynaflow Transmission; Schaeffler Seal Global Number 413 2791 100
1953CadillacDeVilleN/ADynaflow Transmission; Schaeffler Seal Global Number 413 2791 100
1952BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1951BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100
1950BuickRoadmasterN/Aw/o Triple Turbine Trans.; Schaeffler Seal Global Number 413 2791 100

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

173864132791100450494

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.