Product Description
National extension housing seal kit designed as a direct replacement for automatic transmissions on GMC K15 trucks from 1975 through 1978. Includes seals and components specified for extension housing service. Manufacturer Part Number: SX-8G6H (listed for 1975–1978 automatic applications).
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal Kit
Manufacturer Part NumberSX-8G6H 1978 1977 1976 1975 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C189 VEMO King 32-9
Placement on VehicleTransmission > Service Kits
Compatible MakeGMC
Compatible ModelK15
Compatible Year1978 1977 1976 1975
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal Kit
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C189 VEMO King 32-9
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal Kit
Core ChargeFree - No Core Charge
UPCDoes not apply
Country of OriginUnited States
Vehicle Fitment
Always compare the part number and listed specifications with your original part before ordering.