Give us a call today.

Office: 208-734-8451

We will build your engine to your wants and needs.

Just let us know how you want it to run and perform so we can make your truck function exactly how you want it to.

From turbo conversions to aftermarket manifolds, we can get your engine running to its full potential to get you back on the road.

We can convert your semi's engine from a Cummins or Detroit engine into a CAT engine!

We have CAT 3406E, C-15, ACERT blocks and cranks surfaced, machined and polished, ready to go for sale.

Over 50 Years of Experience Repairing Trucks Just Like Yours!

Turn to our truck repair shop in Twin Falls, ID

You can continue to keep your truck and trailer running smoothly with the necessary maintenance and repair services when you visit Gary's Precision Diesel in Twin Falls, ID. Set up a truck repair appointment today.

Repairing your diesel trucks the right way

Repairing your diesel trucks the right way

We understand how important your trucks are to you. Every truck that comes into our shop is treated like our own till you get back in the seat. Time is money, and we will do our absolute best work efficiently to ensure you stay on the road.

Does your diesel engine need repair?

Does your diesel engine need repair?

Our team has extensive experience providing top-notch truck repairs. You can trust us to handle the following services:

  • CAT, Cummins or Detroit engine conversions
  • Engine swap, repair or replace
  • Semitrailer trucks servicing and repair
  • High-performance turbo and manifold for CAT or ISX engines

Discover our other repair services

Discover our other repair services

We'll take care of any necessary truck maintenance or repair tasks. That includes working on your:

Suspension | Brakes | Wheel bearings | Rear ends | A/C | Transmission | Clutch

We also provide:

DOT inspections | Tuneups | Overhauls

We do frame shortening and extending to accommodate your drop axles for any type of application you may have. Schedule a truck maintenance or repair appointment right away.