We're Not Your Daddy's Diesel Engine Repair Service

See why Montana and Wyoming residents have trusted G&J Diesel for over 30 Years!!!

Driving the kids to soccer practice, hauling farm equipment or drag racing-it doesn't matter how you use your truck. As long as you've got a trusted diesel engine repair service behind you, you can keep your truck running for years to come. G & J Diesel Sales & Service, Inc. has you covered.

As a diesel engine repair service based in Billings, MT, we know the value of customer service. We'll go above and beyond to take care of everything under the hood.

Stop by our diesel truck shop today.


You can't expect extraordinary results from subpar technicians. When it comes to diesel engine repair or parts, no one beats G&J Diesel. You can count on us for...

Turbocharged service- Keeping your truck out of the shop & on the Road! Visit our diesel truck shop in Billings, MT today.

Powerful performance- Ask any of our satisfied clients, we're the ones they turn to.

Jaw-dropping truck builds- That's right we're your hometown diesel truck builder & have a full-service machine shop to bring your perfect ride to life.