11 vetted semi-truck repair shops in and around Fontana. Diesel engine, DEF/DPF, tires, trailer, and mobile roadside — the kind of shops that actually work on big rigs.
Roadmark lists 11 vetted semi-truck repair shops in Fontana, CA. These aren't car garages — they're commercial shops that work on Class 8 trucks and trailers.
Among them, 10 do diesel engine work, 5 repair trailers, 4 service tires, and 5 offer mobile or roadside service.
11 of these shops have a direct phone number listed, so you can call ahead before you roll in — confirm they handle your issue and get a price range. Broke down and can't drive? Open Roadmark to find mobile mechanics near Fontana, CA that come to you.
📍 15818 Merrill Ave, Fontana, CA, 92335
24 hours mobile diesel truck mechanic, emergency road side assistance, mobile truck and trailer tire service is a semi-truck repair shop in Fontana offering general repair, diesel engine, tires, trailer repair, mobile / roadside. It does diesel engine work, and sells and services tires.
📍 9743 Cherry Ave, Fontana, CA, 92335
Another Mobile Fleet Service is a semi-truck repair shop in Fontana offering general repair, fleet service, mobile / roadside. It offers mobile and roadside service.
📍 10427 Hemlock Ave, Fontana, CA, 92337
Best bro’s diesel truck repair is a semi-truck repair shop in Fontana offering general repair, diesel engine, brakes, electrical. It does diesel engine work, and does brake work.
📍 15131 Washington Dr, Fontana, CA, 92335
Cypress Truck Repair is a semi-truck repair shop in Fontana offering general repair, trailer repair, diesel engine, transmission, brakes, tires, ac, oil change. It does diesel engine work, and sells and services tires.
📍 16144 Boyle Ave, Fontana, CA, 92337
EIP Diesel Repair is a semi-truck repair shop in Fontana offering general repair, diesel engine, brakes, electrical. It does diesel engine work, and does brake work.
📍 14490 Whittram Ave, Fontana, CA, 92335
Fix-It Diesel Inc is a semi-truck repair shop in Fontana offering general repair, diesel engine, brakes, transmission, electrical. It does diesel engine work, and does brake work.
📍 10417 Calabash Ave #B, Fontana, CA, 92337
J & L TRUCK REPAIR LLC is a semi-truck repair shop in Fontana offering general repair, diesel engine, brakes, transmission, electrical, trailer repair, mobile / roadside. It does diesel engine work, and repairs trailers.
📍 14224 Whittram Ave, Fontana, CA, 92335
JC DIESEL TRUCK MOBILE REPAIR is a semi-truck repair shop in Fontana offering general repair, diesel engine, mobile / roadside. It does diesel engine work, and offers mobile and roadside service.
📍 9978 Cherry Ave, Fontana, CA, 92335
Prime Truck and Trailer Repair is a semi-truck repair shop in Fontana offering general repair, trailer repair, diesel engine, brakes, electrical, tires. It does diesel engine work, and sells and services tires.
📍 9615 Cherry Ave, Fontana, CA, 92335
Rhino Alignments & Diesel is a semi-truck repair shop in Fontana offering general repair, diesel engine, alignment. It does diesel engine work.
📍 15516 Valley Blvd, Fontana, CA, 92335
Team GMD Truck & Trailer Repair is a semi-truck repair shop in Fontana offering general repair, trailer repair, diesel engine, brakes, electrical, tires, mobile / roadside. It does diesel engine work, and sells and services tires.
Roadmark lists vetted commercial truck and trailer repair shops in Fontana and across California. Every shop is chosen for drivers who need real semi-truck service — not a car quick-lube. Use the map to find the nearest shop, see what services each one offers, and call directly. If you can't drive, Roadmark also finds mobile mechanics and roadside service near Fontana.