Diesel Mechanic in Vernal, UT
Diesel repair for pickups and trucks in Vernal, from glow plugs and turbos to DPF/EGR and cab-off work on Cummins, Power Stroke and Duramax engines, backed by a 12-month / 12,000-mile warranty*.
1758 S 1500 E, Vernal, UT 84078 · Get Directions
Mon-Fri 8:00am-6:00pm | Sat Closed | Sun Closed ·
- Waiting room
- Free Wi-Fi
- Walk-ins welcome
- Online booking
12-month / 12,000-mile warranty* on parts & labor
Honored at every Master AutoTech location · Serving Utah and Idaho since 1963
*Exclusions apply. Ask your service advisor for full warranty terms.
- ASE Certified Technicians
- Best of State Utah
- Top Workplaces
- Family Owned Since 1963
Master AutoTech Vernal services diesel pickups and trucks for drivers across Vernal, Naples and the Ashley Valley, from glow plugs and turbos to DPF and EGR repairs. We work on all diesel vehicles except semi trucks, and diesel repairs are backed by our 12-month / 12,000-mile warranty*.
Diesel pickups and trucks from across Vernal, Naples, Maeser, Jensen and the Ashley Valley can reach our shop easily: we’re on 1500 East in Naples, just south of Vernal, a short drive from US-40. Our new paved parking lot has room for pickups and work trucks.
Diesel Services We Offer
Glow plugs & hard starting
Glow plugs tested and replaced so your diesel starts on cold Utah mornings.
Turbocharger repair
Boost leaks, worn turbos and actuator problems diagnosed and repaired.
DPF & EGR service
DPF and EGR diagnosis, cleaning and repair to keep your truck running clean.
Cab-off repairs
Major engine work that needs the cab lifted off, done in our shop.
Diesel diagnostics
Check engine lights, power loss and warning messages traced to the cause.
Diesel maintenance
Oil and filter service and the routine care that keeps a diesel on the road.
Engines We Service
Cummins
Ram heavy-duty pickups with Cummins diesel engines.
Power Stroke
Ford Super Duty pickups with Power Stroke diesel engines.
Duramax
Chevrolet Silverado HD and GMC Sierra HD with Duramax diesel engines.
We work on all diesel vehicles except semi trucks.
Why Choose Master AutoTech Vernal for Diesel
ASE-certified technicians
Every technician earns ASE certification within 90 days of joining the team.
Big jobs in-house
From glow plugs to cab-off repairs, without sending your truck elsewhere.
Upfront estimates
Competitive pricing, and you approve the estimate before any work starts.
Your truck back to work
We know a truck off the road costs you money, and we give you a timeline up front.
What Diesel Repair Costs in Vernal
Diesel repair cost depends on the engine, the parts and how much labor the job takes. We diagnose first, explain what’s driving the price and give you an estimate before any work starts.
Need to spread out the cost? Master AutoTech offers several financing options, including the Goodyear Credit Card (6-month special financing on purchases of $250 or more), the Synchrony Car Care credit card, the 1stMILE Mastercard, Snap Finance, Acima, Surepay and RC Willey financing.
What Vernal Drivers Say
About Master AutoTech Vernal
We’re a family-owned shop that treats every vehicle like it belongs to a neighbor. Master AutoTech started as Master Muffler in 1963 and grew into Utah’s largest auto repair franchise, and this Naples shop is our home in the Uintah Basin. Every technician here earns ASE certification within 90 days of joining the team.
You’ll find us on 1500 East in Naples, just south of Vernal, a few blocks from Naples Community Park. Look for our tall red Master AutoTech pole sign and the Master Muffler mascot by the front door and pull into our lot.
Wait in our waiting room with free Wi-Fi while we work, or say hi to the mascot by the front door. We take care of drivers from Vernal, Naples, Maeser, Jensen and the Ashley Valley every day.
Download the Master AutoTech app and earn rewards
- Rewards & offersOffers and rewards land right in the app, not in a drawer full of coupons.
- Check-engine alertsSee the actual codes your car is throwing and message the shop about them.
- Maintenance trackingKnow what’s due and what’s overdue, with a weekly report on your vehicle.
- Glove BoxKeep registration, insurance and service records in one place.
How to get rewards: download the free app and your offers and rewards land right in it, ready to use at your next visit. Open the app before your visit to see what’s waiting for you. Book a Master Oil Change and get a free Master Link that connects your car to the app.
Areas We Serve
Drivers come to Master AutoTech Vernal for diesel service from across Vernal, Naples and the Ashley Valley.
- Vernal
- Naples
- Maeser
- Jensen
- Ashley Valley
- Roosevelt
Mon-Fri 8:00am-6:00pm | Sat Closed | Sun Closed
Get Directions · 1758 S 1500 E, Vernal
✓ 12-month / 12,000-mile warranty* *Exclusions apply.
✓ Financing available · See options
✓ Get rewards in the Master AutoTech app
Buy 3 Tires, Get the 4th Free
Buy 3 tires, get the 4th free, Oct 1 – Dec 31.
Ends December 31, 2026 · Details
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Frequently Asked Questions
Visit Master AutoTech Vernal
Master AutoTech Vernal
1758 S 1500 E
Vernal, UT 84078
Get Directions
Mon-Fri 8:00am-6:00pm
Sat Closed
Sun Closed
Getting here
- From Vernal: Head south on 1500 East into Naples; we’re at 1758 South.
- Parking: Pull into our new asphalt parking lot right out front on 1500 East.
