(406) 265-2105

Diesel Doctyor
3186 Hwy 2 East
Havre, MT

(406) 265-2105   REQUEST SERVICE

Big Truck & Equipment Repair

Diesel Doctor - Havre, Montana

About Us

Diesel Doctor, Inc. is a family-owned and operated big truck and equipment repair shop, serving Havre, MT since 1999. Our mechanics specialize in diesel engine repair, and doing what it takes to keep our customers’ vehicles up, running, and working—because we know when your truck or equipment is sidelined, so are you. Our goal is to get you on your way fast, with confidence in your vehicle and a smile on your face.

Mission Statement: At Diesel Doctor Inc., we are committed to providing professional vehicle repair and customer service. We are a family owned business and our goal is to build a lasting relationship with our customers.


Semi-Truck Repair

We are qualified and equipped to service Kenworth, International, Peterbilt, Mack, Western Star, Volvo, and most other big truck makes.

Bus Repair

Schools on the highline count on us to maintain, service, and repair their school and charter busses.

Farming Equipment

Many farmers and ranchers in the Havre area count on us to maintain and repair their tractors, trailers, and farming equipment.
We are committed to providing professional vehicle repair and customer service at honest and fair prices.
Diesel Done Right
(The Doctor's Always In!)
At Diesel Doctor, Inc., we have the tools, technology, and experience to repair and maintain all diesel-powered vehicle systems, as well as perform annual DOT inspections to exact specifications. If you drive a semi-truck, operate farm or ranch equipment, or run a fleet in the Havre area, call Diesel Doctor for all your service needs! We’ll ensure your vehicle leaves our facility in the best working condition possible.
  • Diagnostics
  • Engines & Transmissions
  • Heating Systems
  • A/C Repair
  • Radiators
  • Suspensions
  • Brakes
  • Oil Changes
  • Flushes
  • Exhaust Systems
  • Alignment

Authorized Cummins Dealer

Authorized MD Alignment Service Center

Bring your truck to us once.
Bring your truck to us forever.
As a family-owned and operated business, our goal is to establish lasting, meaningful relationships with our customers, based on trust, respect, and honesty. We take pride in the reputation we have built in the Havre community for consistently providing quality truck repair, performance, and service work. We also value the support we have received over the years from our friends and neighbors, and look forward to carrying forward a tradition of excellence for generations of diesel drivers to come.

Truck Care Tips

Call us at (406) 265-2105 for specific advice regarding the care and maintenance of your vehicle or equipment.

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Interested in working with us? Visit our Careers page to see current openings.

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Proudly serving Havre, MT & Nearby Areas
From the Hi-Line Chester to Glasgow, Canada to Great Falls
Our shop is conveniently located at 3186 Highway 2 East in Havre, MT, near Bears Paw Mountains and Montana State University-Northern. Truck drivers, ranchers, farmers, campers, businesses, and families from all over the region come to us for diesel truck and tractor-trailer repairs. The communities we serve include Cut Bank, Shelby, Fort Benton, Chinook, Malta, Glasgow, Scobey, Big Sandy, Hingham, Great Falls, and surrounding areas.
Your Truck, Our Expertise.

Diesel Doctor, Inc.
3186 Hwy 2 East
Havre, MT
Get In Touch
(406) 265-2105