2001 Cummins ISB, TRUCK DELIVERY, ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2000 Cummins ISB, ENGINE ECM- Part Number: 3990517, Serial Number: 05001931, ECM Code: J91260.06, Engine Information- Family Number: 2CEXH0359BAB, ESN: 60296803, 2 Rectangular Plug with 50 Pins each!! 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# 05001931, Casting# 05001931, Truck Year 2001 4UZAA5BW01CH64770