Your independent electronic engine experts
Products We Carry
Why Diesel Performance?
Diesel Performance has all the diagnostic software to troubleshoot, repair or overhaul your CAT, Cummins, or Detroit Diesel engine. We also have many years of Allison Transmission experience, with both off highway and on highway applications. We have four fully equipped service trucks to make the necassary repairs in the field. We also have a complete fabrication facility to custom build generator sets, power units or to repower your rig. Read more about us…
Complete Overhauls • Custom Fabrication • Maintenance • Diagnostics • Minor Repairs • DOT Inspections • Transmission Rebuilding • Cylinder Head Repair/Rebuild • Brakes • Load Banking • Engine Dyno Testing • Chassis Dyno Testing • Ac Repair • Field Service
More Parts & Services
Series 60 Engines
We have a large inventory of Detroit Diesel Series 60 engines. These include truck, industrial, and generator engines. The Series 60 engine was the first all-electronic controlled engine manufactured from the ground up. 11 Liter, 12.7 Liter, and 14 Liter DDEC 11, DDEC Ill, DDEC IV, DDEC V, and DDEC VI 350 horsepower to 700 horsepower.
We stock rebuilt Cat engines.
We are your local independent Allison transmission experts. We can troubleshoot, repair, and rebuild your transmission. We have a transmission test stand to check all Allison transmission clutch pressures and shift quality.
We have the only heavy duty tandem axle chassis dyno in western Colorado. The dyno is rated at 1000 horsepower. We can verify that engine performance is up to specification. We perform diagnostics under loaded conditions. All our rebuilt engines are dyno tested on our 2000 horsepower engine dyno. This assures you are getting the horsepower you need to do the work.
On May 4, 2021 Diesel Performance of Grand Junction, Inc. entered into a settlement with the United States Environmental Protection Agency (U.S. EPA) to resolved alleged violations of Section 203(a)(3)(A) and 203(a)(3)(B) of the Clean Air Act, related to removing and/or rendering inoperative devices or elements of design and the selling, offering to sell, and/or installing defeat devices for use on heavy-duty diesel engines.
By signing a consent agreement with U.S. EPA, Diesel Performance of Grand Junction, Inc. has certified that it will comply with Section 203(a)(3) of the CAA, which makes it unlawful for: “(A) any person to remove or render inoperative any device or element of design installed on or in a motor vehicle or motor vehicle engine in compliance with regulations under [Title II of the CAA] prior to its sale and delivery to the ultimate purchasers, or for any person knowingly to remove or render inoperative any such device or element of design after such sale and delivery to the ultimate purchaser; or (B) for any person to manufacture or sell, or offer to sell, or install, any part or component intended for use with, or as part of, any motor vehicle or motor vehicle engine, where a principal effect of the part or component is to bypass, defeat or render inoperative any device or element of design installed on or in a motor vehicle engine in compliance with regulations under this subchapter, and where the person knows or should know that such part or component is being offered for sale or installed for such use or put to such use.”
Diesel Performance of Grand Junction, Inc. will pay a penalty of $210,000 and comply with the consent agreement to ensure ongoing compliance with the Clean Air Act.
If you have any questions regarding this announcement, please ask for Dan Johnson.