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1975-1978 GMC G35 Automatic Transmission Extension Housing Seal - Timken SX-3939

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New Timken extension housing seal (SX-3939) for 1975–1978 GMC G35 automatic transmissions. Direct replacement; interchange with Sealed Power C689 and Clevite 6-11.

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BrandTimken
MPN / Part NumberSX-3939 1978 1977 1976 1975 Automatic
OE NumberSealed Power C689 Clevite 6-11
Part TypeAutomatic Transmission Extension Housing Seal
PositionTransmission > Gaskets Sealing Systems
TransmissionAutomatic

Product Description

New Timken extension housing seal, model SX-3939. Designed as a direct-replacement seal for the extension housing on compatible GMC G35 automatic transmissions from 1975 through 1978. Interchanges with Sealed Power C689 and Clevite 6-11. Made in the United States.

Product Specifications

BrandTimken
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-3939 1978 1977 1976 1975 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberSealed Power C689 Clevite 6-11
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeGMC
Compatible ModelG35
Compatible Year1978 1977 1976 1975
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine Timken Automatic Transmission Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Core ChargeFree - No Core Charge
Country of OriginUnited States
Fitment TypeDirect Replacement
Bundle Description1 pc Genuine Timken Automatic Transmission Extension Housing Seal

Vehicle Fitment

YearMakeModelEngineTrimTransmission
1975GMCG35Automatic
1976GMCG35Automatic
1977GMCG35Automatic
1978GMCG35Automatic

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