(Used) 2006 Allison, TRANSMISSION ECM- Serial Number: BK4473N16170E5MT, Part Number: 29544773 Model: 1000 Series, Trans Serial Number: TMG039289-1, Part Number: 29544702, Engine: Mercedes MBE 904, Trans: P-39422 Truck: 665996 For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921