Welcome. Our company rebuilds and remanufactures Electronic Control Modules (ECM), and Engine Control Units (ECU) for a wide array of diesel engine applications, including Cummins and Detroit Diesel. ECM King is a pioneer in this field, rebuilding & repairing Heavy Duty ECMs for diesel engines since 1985. We also can adjust and modify ECMs for performance applications and regular road applications. Your engine will produce more HORSEPOWER and TORQUE - without any other modification. ECM King also burns custom EEPROMs. Give us a call today, toll free!
FREE ECM/TCU testing! Not sure if you're ECM or TCU is the problem? Let us test it for free. Find out quick and easy!
FREE Diagnostics! Are you having performance issues? Let us run a free diagnostics check and determine where the problem is and how to fix it.
FREE Performance Advice! Would you like to max out engine performance and minimize energy costs? Let our trained Master Techs recommend a custom EPROM for your ECM and get the best performance possible.