Superior Medium-Duty Coverage

Genuine Diesel Parts for Vehicle Classes 4, 5, and 6

Medium-duty vehicles belong to vehicle classes 4, 5, and 6. These three classes consist of any vehicle with a Gross Vehicle Weight Rating (GVWR) between 14,001 and 26,000 pounds, which is the total combined weight of the truck, including all passengers, fuel, fluids, and payload. These vehicles include everything from parcel delivery trucks to bucket trucks and school buses.  

CLASS 4:
14,001 to 16,000 lbs

CLASS 5:
16,001 to 19,500 lbs

CLASS 6
19,501 to 26,000 lbs

Our Expanding Medium-Duty Program

Standard® is proud to provide an extensive offering of premium replacement parts for medium-duty applications. To date, our line features more than 265 diesel engine management SKUs and counting for medium-duty trucks, including:

  • 94+ MD Diesel Fuel Injectors
  • 20+ MD Diesel Fuel Injection Pumps
  • 20+ MD Diesel High Pressure Oil Pumps
  • 19+ MD Diesel Turbochargers