Product Description
New National extension housing seal kit (MPN SX-16HS) designed as a direct replacement for automatic transmissions in GMC M300 vehicles from 1957 through 1959. Includes seals for the transmission extension housing and is sold as a single-piece service kit.
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal Kit
Manufacturer Part NumberSX-16HS 1959 1958 1957 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C578 VEMO King 12-42
Placement on VehicleTransmission > Service Kits
Compatible MakeGMC
Compatible ModelM300
Compatible Year1959 1958 1957
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
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal Kit
Placement on VehicleTransmission > Service Kits
Country of OriginUnited States
UPCDoes not apply
Vehicle Fitment
Always compare the part number and listed specifications with your original part before ordering.