4 State Trucks


    4 State Trucks, home of the authentic Chrome Shop Mafia, has been providing quality new parts for the heavy-duty truck industry since 1979. With the many changes that the new millennium has brought, 4 State Trucks continues to strive to meet the growing needs of the American trucker.

    Accuride Corporation


    Large manufacturer of steel and aluminum wheels. OEM supplier of medium and heavy duty wheels. Corporate headquarters located in Evansville, Indiana.

    Allison Transmission


    Designs and manufactures medium and heavy duty electronically controlled automatic transmissions. Sales and service locator.

    AsasKa Ltd. Co.


    Manufactures and exports air brake components, rubber parts and air springs for European heavy duty trucks and trailers. Based in Istanbul, Turkey.



    Manufacturer of horns, security systems, voltage reducers and accessories. Offers English and Italian versions.

    Betts Truck Parts


    Enter Betts Truck Parts & Service. For more than 150 years, creating a customer experience that is second to none has been our mission. This is why we offer a free 50-point inspection to all of our customers and free pick-up and delivery with our On-Time Delivery Commitment at most of our branches. It’s our friendly attitude and can-do spirit that has brought our valued customers back year after year to experience the best that Betts can offer.

    China Yuhuan Xinlong Machinery Co., Ltd.


    Manufacturer of slack adjusters, s-camshafts, camshaft kits, brake lining, axle, truck brake parts, automotive and bus parts. Located in China.

    Commercial Truck and Trailer


    Commercial Truck & Trailer’s mission is to be the most reliable parts and service source in every market that we serve. Our local knowledge allows us to tailor the products and services that we provide to the unique needs of our area customers. This coupled with our nationally recognized product lines means that your experience with Commercial Truck & Trailer will be consistently reliable.

    Cummins Engine


    An OEM engine manufacturer.

    Cummins Westport Inc.


    Alternate fuels joint venture created to develop and market low emissions, high performance alternative fuel engines for use in trucks and heavy vehicles.