Southwest Diesel Service, Inc.
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Call Us Today (435) 414-6618
1150 E 350 N, Saint George, UT 84770 |

RV Repair Services & More in St George, UT

At Southwest Diesel Service Inc., we offer a full range of Diesel, RV and pick-up truck repair and maintenance services that will have both you and your vehicle safe for the open road. We offer 24/7 Mobile Roadside assistance and Fleet Maintenance Programs to keep your trucks and trailers in-service at all times. We do all State Safety and DOT Inspections for all types of vehicles. We specialize in Diesel Engine Repair, Replacement and Installation.

RV Repair & Service

Southwest Diesel is a Full-Service RV repair shop we offer a full line of services to keep your Motorhome in its best working order, we offer Motorhome and State Safety Inspections, Computer Diagnostics, Winterize, RV ... Read more


Looking to repair or just improve your mileage for your Medium Duty Truck? Our mechanics in the performance center specialize working on any Dodge, Ford, and Duramax Engines. We offer services such as High-... Read more

Commercial Repair

We repair anything from all Diesel Engines to Transmissions whether it is computer diagnostics, oil change and lube, air conditioning, brake repair, electrical or general maintenance, we will get you back on the road.
With our timely and professional employees, we are able to repair or maintain any of the following services:
  • Air-conditioning Service and Repair
  • Alternators
  • Batteries
  • Belts
  • Bearings
  • Brake Repair or Replacement
  • Clutches
  • Computer Diagnostics
  • Drive-train
  • Electrical Systems
  • Engines Repair,
  • Replacement, and Installation
  • Exhaust Systems
  • Fleet Repair and Maintenance
  • Fuel Systems
  • Hitches
  • Hoses
  • Jump Starts
  • Lights
  • Lift Gate Repair
  • Oil Change and Lube
  • Radiators
  • Rear Ends
  • Refrigeration Trailer
  • Seal Leaks
  • Starters
  • Transmissions
  • Trailer Repair and Maintenance
  • Water Pumps
  • Welding
  • Winterize