Semi Truck Repair in Monett, MO
Semi trucks are a different animal, and we treat them that way. Dons Diesel & Auto repairs semi trucks in Monett, MO for owner-operators and small carriers running through Lawrence County, the I-44 corridor and US-60.
Semi Truck Repair for Monett & Lawrence County
Our shop has room for big rigs and the experience to work on them, from diagnosing a derate to pulling an engine. You'll get honest updates and a clear picture of what your truck needs.
Every day your tractor sits costs you, so we stay focused on finding the real fault and getting you back under a load.
Semi truck repairs we do
- Engine diagnostics and repair
- Engine removal and heavy repair
- Fuel systems, injectors and turbos
- EGR, DPF and DEF/SCR aftertreatment repair
- Charging, starting and electrical problems
- Cooling system and coolant leaks
- Brakes and suspension
- Preventive maintenance
How it works
Our process
- 01
Call with the details
Truck make, the problem, codes if you have them, and where you're at.
- 02
Diagnose the root cause
We test instead of guess so you don't pay for parts you didn't need.
- 03
You approve
We explain the repair and you decide how to proceed.
- 04
Back under a load
We complete the repair, verify it, and keep you updated.
Who we serve
Owner-operators
One truck, one paycheck. We get that.
Small fleets
Carriers that want a local shop they can count on.
Ag haulers
Trucks hauling grain, livestock and feed around southwest Missouri.
Through-truckers
Drivers running I-44 and US-60 who need help nearby.
If you're broke down on the road, see our roadside assistance and mobile mechanic service. Hours: Monday–Friday 8–5, Saturday 8–noon. Se habla español.
Areas served
We serve about 50 miles around Monett, including:
- Monett, MO
- Mount Vernon, MO
- Joplin, MO
- Springfield, MO
- Sarcoxie, MO
- Pierce City, MO
- Neosho, MO
- Carthage, MO
Related services
Semi Truck Repair FAQ
Can you fit a semi in your shop?
Yes. Our shop has bay space for semis and other big trucks.
Do you do aftertreatment repairs on semis?
Yes, including EGR, DPF and DEF/SCR system problems.
Can you help if I'm broke down on I-44?
If you're within about 50 miles of Monett during business hours, call (417) 205-3705 and we'll see what we can do.
Do you do preventive maintenance on semis?
Yes. We handle preventive maintenance and can set up regular service for fleets.
Need semi truck repair? Call now.
Fastest way to get help is a phone call. In the shop, on-site, or on the side of the road.