2001 Cummins ISB, Truck delivery, ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2002 Cummins ISB, ECM- Serial Number: 9001063, Part Number: 3990517, ESN: 60282831, 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# 9001063, Casting# 9001063, Truck Year 2001 4uzaa5bw91ch64704