2001 Cummins ISB, Truck Delivery, ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2001 Cummins ISB, ENGINE ECM- Part Number: 3990517, Serial Number: 10003725, ECM Code: J91280.06, Engine Information- Displacement: 5.9L, ESN: 60293501, 2 Rectangular Plug with 50 Pins each!! Minor damage!! Reference images for condition. For more information about this o, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 10003725, Casting# 10003725, Truck Year 2001 4UZAA5BW71CJ04755