We stock over 50,000 models of quality used ECMs & ECUs & ECCs. We offer Off-Truck programming, testing and horse power upgrades for many model heavy duty trucks including Cummins. Remanufactured and New OEM products are available from AUTO ECM ECU. We also repair ECM, ECU and ECCs. JEEP ECM, JEEP ECU, JEEP ECC, JEEP computer is brought to you by Auto ECM ECU.