Product Description
New National extension housing seal, MPN SX-23J7. Designed as a direct replacement for the extension housing on automatic transmissions used in Workhorse FasTrack FT1801 vehicles from 2003 through 2005. Interchange references listed by the manufacturer include Timken, SKF C539, VEMO, and King 41-52.
Product Specifications
BrandNational
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-23J7 2005 2004 2003 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C539 VEMO King 41-52
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeWorkhorse
Compatible ModelFasTrack FT1801
Compatible Year2005 2004 2003
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States
Manufacturer Warranty1 Year
Core ChargeNo Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
Country of OriginUnited States
Placement on VehicleTransmission > Gaskets Sealing Systems
Vehicle Fitment
| Year | Make | Model | Engine | Trim | Transmission |
|---|
| 2003 | Workhorse | FasTrack FT1801 | | | Automatic |
| 2004 | Workhorse | FasTrack FT1801 | | | Automatic |
| 2005 | Workhorse | FasTrack FT1801 | | | Automatic |
Always compare the part number and listed specifications with your original part before ordering.