Ram Truck & Cummins Repair in Washington, UT
Professional repair and maintenance for the Ram 1500, 2500 and 3500 with the 6.7L Cummins or HEMI gas V8 in Washington, Utah.
MST Motorsports credentials
- ASE Master Certified Technicians
- Hunter HawkEye Elite Alignment
- In-House Shock Rebuilds
- 80+ Years Combined Experience
- Gas & Diesel
- Family-Owned in Washington Since 2020
MST Motorsports provides professional Ram truck repair in Washington, Utah, for the Ram 1500, 2500 and 3500, including Cummins fuel systems, transmissions, steering and brakes. Our factory-trained, certified technicians have more than 80 years of combined experience with the wear patterns Ram HD trucks develop towing and hauling in Washington County, and qualifying repairs are backed by our 36-month/36,000-mile nationwide warranty. Lift kits, shocks and alignment are handled at the same location, minutes from St George.
We service trucks, SUVs, Jeeps, Broncos and daily drivers, gas and diesel, from Ford, Chevrolet, GMC, Ram, Toyota, Honda and Nissan. If your vehicle is not listed here, call (435) 256-8899.
Platforms We Service
Suspension and lift work runs through truck services, diesel work through diesel repair, and ride-height correction through alignment service.
6.7L Cummins Diesel Work
The 6.7L Cummins runs two fuel filters, a chassis-mounted primary and an engine-mounted secondary, and both are replaced at the 15,000-mile service, earlier on trucks running off-brand diesel.
Most 6.7L Cummins engines use the CP3 injection pump, later model years moved to the CP4, and our technicians check the VIN before assuming which pump is in the truck. Rail pressure, injector return and filter media condition show how the high-pressure side is holding up.
EGR cooler condition, DPF regeneration behavior and turbo actuator function make up most Cummins drivability diagnosis, and hard starts, power loss under load and metal in the filter are traced to their source with scan tool data.
The 68RFE transmission behind a towing Cummins benefits from fluid and filter service on schedule, and the Aisin AS69RC runs its own fluid schedule under load. On the gas side, 5.7L and 6.4L HEMI work covers lifters, plugs, cooling and exhaust manifolds.
Steering Lift and Alignment
Ram HD front ends have known wear points at the track bar, drag link, steering box and ball joints, and death wobble is the symptom our technicians trace to the worn component through measurement and inspection.
Leveling kits and 2 to 6 inch lifts are installed on the 1500 and 2500 platforms with shocks matched to load and terrain, and alignment finishes on the top-of-the-line Hunter HawkEye Elite.
Maintenance Intervals
5,000 to 7,500 miles
Oil and filter with roughly 12 quarts of diesel-rated oil on the Cummins, tire rotation, courtesy inspection.
15,000 miles
Both Cummins fuel filters, engine air filter, cabin filter, transfer case fluid inspection on 4WD.
30,000 miles
68RFE or Aisin AS69RC fluid and filter, brake fluid flush, front and rear differential fluid. Spark plugs on 6.4L HEMI.
60,000 miles
Front axle service, driveline fluids replaced, cooling system inspection, full drivetrain inspection.
Heavy tow duty
68RFE fluid service closer to 30,000 miles on trucks that tow often, with transmission temperature reviewed at the same visit.
Ram lists longer intervals for ideal conditions, and these are the numbers we work to for Southern Utah heat, grades and tow duty. , or call or text (435) 256-8899 with your mileage.
Ram's published Cummins figures, including the 500-hour ceiling, are laid out in our 6.7L Cummins service interval article.
What We See in Southern Utah
Serving Washington, St George and Hurricane, plus Ivins, Santa Clara, La Verkin and Leeds. Pricing depends on the platform and the mileage, so call for your vehicle.
Book Your Service
Repair, maintenance, lift and alignment in one shop in Washington, Utah.
Side-by-side and UTV service at our Washington, Utah location.
Polaris, Can-Am and Kawasaki side-by-side service, including in-house shock rebuilds, clutch and CVT work and suspension.
Side-by-side and UTV serviceFrequently Asked Questions
How often does a 6.7L Cummins need an oil change?
Ram lists up to 15,000 miles in ideal conditions, but heat, dust, idle time and towing in Washington County move most trucks to 5,000 to 7,500 miles on 15W-40 diesel-rated oil. The engine holds about 12 quarts, and tow vehicles and idle-heavy work trucks sit at the short end of the window.
Does the 68RFE transmission need fluid service?
Yes, especially behind a truck that tows. Trucks in heat and tow duty do well with fluid and filter service in the 30,000 to 60,000 mile range, and the Aisin AS69RC handles load differently while still running on a fluid schedule.
Do you work on Ram 3500 dually trucks?
Yes. Ram 3500 dually service includes oil service, transmission work, front axle service, brakes and diagnostics, with rear wheel torque, brake work and bearing inspection handled as part of the work. Our lift capacity and tooling are sized for one-ton chassis.
Can you fix death wobble on a Ram 2500?
Yes. Death wobble is a symptom of play in the steering and suspension, usually the track bar, drag link, tie rod ends or ball joints. Our technicians measure the components under load, repair the source and align on the top-of-the-line Hunter HawkEye Elite.
Book Service
Call the shop with your year, mileage and what the truck is doing. We book service in Washington, Utah, minutes from St George.