Cummins Sales and Service

At W.W. Williams, we proudly provide the Tucson area with truck repair, diesel repair, generator service, and more. We are a full-service maintenance and repair shop for trucks, trailers, and commercial vehicles. We also provide sales and service for diesel engines, generators, and truck parts. We are a dealer for Detroit Diesel, Allison Transmission, Deutz Engines, mtu, Weller Transmission, Mercedes-Benz Engines, Volvo Penta, Red Dot, and more. Our mechanics, friendly service advisors, and staff are ready to address your vehicle and equipment needs in any of our 27 working bays.

Whether your large diesel vehicle requires a new cylinder head or your turbos arent firing properly, Frontier Diesel, LLC in Nogales, AZ, is here to offer custom truck parts at affordable prices. With over 30 years of experience, these truck mechanics have the knowledge to help you find what youre looking for.This diesel repair shop offers a wide selection of diesel engine parts. Choose from top-of-the-line products for your vehicle, including injectors, inframe kits, crankshafts, and cylinder blocks.Purchase top-notch parts for your heavy-duty truck at cost-efficient prices when you visit Frontier Diesel. Call these truck mechanics at (520) 281-8080 to learn more about their business today.