Cummins Engine Repair in Phoenix, AZ

Cummins Engine Repair

Cummins engines power a huge share of trucks, buses and motorhomes on Arizona roads — in Freightliners, Kenworths, Peterbilts, Internationals and diesel pushers. Emergency Roadside Truck & Trailer Repair diagnoses and repairs Cummins engines in Phoenix, in the shop and on-site.

Cummins Engines We Service

• X15 and ISX15
• X12 and ISX12
• L9 and ISL
• B6.7 and ISB
• Older N14 and ISM engines

Common Cummins Repairs

• Derates and aftertreatment — DPF, DEF doser, NOx sensors (DPF repair).
• EGR valves and coolers (EGR repair).
• Turbochargers and VGT actuators.
• Fuel system and injectors.
• Cooling system and water pumps.
• Sensors and wiring.

“Best fleet repair and diesel engine repair. They fix volvos and Cummins and prices are fair.”

— Okubazghi T., Google review · Cummins repair

“My husband brought his Hino diesel work truck… They fixed the Cummins and had the truck ready in no time.”

— Brenda H., Google review · Cummins repair

Cummins Engines in RVs and Buses

Cummins ISB, ISC, ISL and ISX engines power many diesel pushers and buses. We diagnose and repair these engines on the chassis side — fuel, turbo, cooling and aftertreatment — at our shop or where the vehicle is parked.

Prevent Cummins Derates

Use quality DEF, fix exhaust and boost leaks, and address sensor faults early. Most derates start as a warning that was ignored.

Frequently Asked Questions