Product Description
New National front automatic transmission oil pump seal (Manufacturer Part Number: SX-78DX). Designed as a direct replacement for the front oil pump on 1979–1980 GMC P1500 automatic transmissions. Supplied as one genuine National seal.
Product Specifications
BrandNational
TypeAutomatic Transmission Oil Pump Seal
Manufacturer Part NumberSX-78DX 1980 1979 Automatic Gaskets
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C557 VEMO King 30-9
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeGMC
Compatible ModelP1500
Compatible Year1980 1979
Core ChargeFree - No Core Charge
PositionFront
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine National Automatic Transmission Oil Pump Seal
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Placement on VehicleTransmission > Gaskets Sealing Systems
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine National Automatic Transmission Oil Pump Seal
Country of OriginUnited States
UPCDoes not apply
Vehicle Fitment
Always compare the part number and listed specifications with your original part before ordering.