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1979-1990 GMC K3500 Front Automatic Transmission Oil Pump Seal - National SX-HFSZ

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National front transmission oil pump seal (SX-HFSZ), direct replacement for 1979–1990 GMC K3500 automatic transmissions.

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BrandNational
MPN / Part NumberSX-HFSZ 1990 1989 1988 1987 1986 1985
OE NumberTimken SKF C355 VEMO King 57-30
Part TypeAutomatic Transmission Oil Pump Seal
PositionFront
TransmissionAutomatic

Product Description

Genuine National front automatic transmission oil pump seal, part number SX-HFSZ. Designed as a direct replacement for GMC K3500 automatic transmissions from 1979 through 1990. Interchange references include Timken, SKF, C355, VEMO, and King 57-30. Sold as a single seal.

Product Specifications

BrandNational
TypeAutomatic Transmission Oil Pump Seal
Manufacturer Part NumberSX-HFSZ 1990 1989 1988 1987 1986 1985
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C355 VEMO King 57-30
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeGMC
Compatible ModelK3500
Compatible Year1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 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 Part NumberSX-HFSZ 1990 1989 1988 1987 1986 1985
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C355 VEMO King 57-30
Placement on VehicleTransmission > Gaskets Sealing Systems
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine National Automatic Transmission Oil Pump Seal
UPCDoes not apply
Country of OriginUnited States

Vehicle Fitment

YearMakeModelEngineTrimTransmission
1979GMCK3500Automatic
1980GMCK3500Automatic
1981GMCK3500Automatic
1982GMCK3500Automatic
1983GMCK3500Automatic
1984GMCK3500Automatic
1985GMCK3500Automatic
1986GMCK3500Automatic
1987GMCK3500Automatic
1988GMCK3500Automatic
1989GMCK3500Automatic
1990GMCK3500Automatic

Always compare the part number and listed specifications with your original part before ordering.