Product Description
National extension housing seal, part number SX-55JR, designed as a direct replacement for automatic transmission extension housings on Chevrolet R20 trucks from 1987–1988. New condition. Interchanges with Timken, SKF, C800, VEMO, and King 31-21. Sold as a single piece.
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-55JR 1988 1987 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C800 VEMO King 31-21
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeChevrolet
Compatible ModelR20
Compatible Year1988 1987
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; C800; VEMO; King 31-21
Fitment TypeDirect Replacement
Core ChargeFree - No Core Charge
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.