Product Information:?? Part Name: ECU Controller, ECM Controller, CPU Controller, Excavator Controller, Engine Control Unit Module?? Material: Metal?? Item Condition: Aftermarket Part?? Way of Use: Direct Replacement?? Reference Number: 4354531?? WarrantyPeriod: 12 months. If there is any problem during this period, repair or replacement service will be provided. ? Application:?? Compatible with Cummins QSB4.5 Engine for Excavators Cars Trucks Diesel Engine 67L CM2850 ECM Controller Engine Control Unit Module. ? Experienced technician is always recommended for installation or removal of the Engine control module. ? Programming of ECM is required to function it correctly with the engine. As every engine has specific requirements. ? Attention: Reliability – The parts are excellent and fast after-sales service. Parts Updates – According to the original factory specifications manufactured, tested.