CAT, Cummins, Volvo, Mack, International, Paccar & Detroit Performance/Fuel Economy Products


At Heavy Diesel Tuner we strive for 100% customer satisfaction.
Our team has spent over 16 years developing and refining our ECU Tunes and Plug-In Units to offer you the very best in industry power and fuel economy increasing products.


Big Rig Tuning Products Less consumption, more torque, better fuel economy!

Heavy Diesel Tuner's Big Rig mileage/performance upgrades include ECU re-flashing as well and some engine Plug-in performance modules. Our products stand out above the rest due to the amount of R&D involved with each nit/tune we develop.

Each product is tested for maximum durability and engine life expectancy. They also use only the highest grade of components assembled in the USA with European electronics (not China like our competitors) for the industries best warranty of 3 years!

If you have any questions on pricing, availability, fitment or anything else feel free to contact us with your Model, Year and engine.

Agricultural Products

Increased Fuel Efficiency, Power and working MPH!

Tractors and other agricultural vehicles require sufficient power to handle heavy work loads.

Too much load on an engine can lead to poor fuel consumption and also premature engine wear, especially to the engines bottom end bearings!

HDT's tuning and plug in units SAFELY increase the engines power output allowing the engine to do the same work it struggled with before with less load and increased speed allowing a significant reduction in fuel consumption.