Diesel Engine Repair

Trust your Diesel Engine Repair to our team of ASE Master Certified Technicians.


Diesel center




2 Year, 24,000 Mile


Fast Turnaround

accredited business

better business bureau

Automotive Service Excellence

certified technicians

Diesel Engine Repair

You bought a diesel because you need performance and reliability. Whether you’re towing equipment for work or pulling a loaded toy-hauler up the steep grade to Horseshoe Bend for a weekend in the mountains, your engine needs to perform.

Our diesel engine repair encompasses everything your engine needs – from fixing leaks to rebuilding the top end or replacing the engine entirely. Oil leaks, gasket replacement and coolant leaks are common issues we take care of. For high- mileage vehicles, we can pull the whole engine out, completely reseal it, and put it back in without having to replace it.

We can help with:

  •       Cooling system repair
  •       Water pump repair
  •       Mechanical repair
  •       Valve replacement
  •       Leaking or broken exhaust manifolds
  •       Broken bolts
  •       Cylinder balance issues
  •       Top-end rebuilds (cylinder heads, injection pumps, turbos, etc.)
  •       Full engine replacement

Master Certified Technicians

Every technician at Gem State Diesel and Repair is a ASE Master Certified technician. That’s the highest qualification available for work on diesel engines. Just like other professionals, our technicians have continuing education and keep current on the new equipment and technology.

When you bring your diesel in, we’re not just updating it with the same parts that came on it, the ones that failed which caused the issue in the first place. We’re repairing it with the newer, improved versions of high-quality parts so you don’t have the same issue again.

In-House Machine Shop

Our in-house machine shop means you’re not stuck waiting for third-party suppliers to get back on the road. Our machine shop can repair a single part or do a complete rebuild of most engines. Rebuilding engines, sonar head replacement, resurfacing exhaust manifolds, cylinder head rebuild and repair, resurface flywheels, and fixing warped components are just a few of the items our in-house machine shop can handle. 

Over 9,000 Diesels Repaired & Counting

At Gem State Diesel and Repair, we’ve been helping Idaho diesel owners get back on the road since 2010. With over 9,000 diesels repaired, if you’ve got a problem, chances are we’ve seen it and solved it. 

We’re your go-to expert for Ford Power Stroke, Dodge Cummins and Chevy/GMC Duramax engines. We stand behind our parts and our workmanship. That’s why we offer a 2 year, 24,000 mile warranty – double that of most dealers.

Getting You Back on the Road

  1. Schedule an Appointment
    1. Get your truck in quickly
  2. Inspection or Diagnostic Services
    1. Efficient diagnosis of the source of the problem with computer-assisted diagnostic tests.
  3. Upfront Price Estimate
    1. You’ll get a price estimate for approval before we begin work
  4. Enjoy Your Peace of Mind
    1. Get back on the road timely at a fair price. Our work is backed by a 2-year 24,000 mile warranty.

Schedule an Appointment