Cummins ECM ECU ISX Diesel Engine Computer 3684009 CM870 CPL 8520 Tested

  

OEM Cummins ISX ECM ECU 450HP P/N: 3684009 CM870 ESN: 14045162 CPL8520 Tested. Used takeoff unit - Removed From Running Salvage Vehicle. Bench tested to verify condition. Unit Pictured is the one you will receive.