2007 Cummins ISB, Truck Delivery, ECMs, Fits to: Freightliner MT45 Chassis, (Used) 2006 Cummins ISB, ENGINE ECM- Part Number: P4921776-RX, Serial Number: A34244441, 1 Rectangular Plug with 4 pins, 1 Rectangular Plug with 60 pins, 1 Rectangular Plug with 50 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# A34244441, Casting# A34244441, Truck Year 2007 4UZAANBWX7CY01135