Product Description
Replacement extension housing seal for automatic transmissions, manufactured by National. Direct-fit for GMC PM253 models from 1955 through 1958. Sold as a single piece (1 pc).
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-YBSK 1958 1957 1956 1955 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C349 VEMO King 48-40
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeGMC
Compatible ModelPM253
Compatible Year1958 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 Part NumberSX-YBSK 1958 1957 1956 1955 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C349 VEMO King 48-40
Placement on VehicleTransmission > Gaskets Sealing Systems
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States
Vehicle Fitment
Always compare the part number and listed specifications with your original part before ordering.