2009 Cummins ISB, Truck Delivery, ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2008 Cummins ISB, ENGINE ECM- Part Number: 4943134, Serial Number: 51835, ECM CODE: AU90047.20, Engine information- ESN: 57866546, 2 Plugs with 60 Pins each, 1 Plug with 4 Pins, Reference images for condition. For more information about this item, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 51835, Casting# 51835, Truck Year 2009 4UZAARDU69CAL4599