Product Description
New National automatic transmission extension housing seal. Direct replacement designed for Austin A40 automatic transmissions from 1955 through 1959. Supplied as one piece and listed under manufacturer part number SX-5QM3. Interchange references are provided by the seller for cross‑referencing.
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-5QM3 1959 1958 1957 1956 1955
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C687 VEMO King 32-19
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeAustin
Compatible ModelA40
Compatible Year1959 1958 1957 1956 1955
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C687 VEMO King 32-19
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
Country of OriginUnited States
UPCDoes not apply
Placement on VehicleTransmission > Gaskets Sealing Systems
Vehicle Fitment
Always compare the part number and listed specifications with your original part before ordering.