2007 Allison 2200HS, Truck Delivery, Transmission ECMs, Fits to: Workhorse Custom Chassis W62, (Used) Allison (AT), TRANSMISSION ECM- ECM Model: A40, Part Number: 29544772, Serial Number: BK4772N06252HX1N, Transmission information- Model: 2200HS, Serial Number: 6310690454, 1 Rectangular Plug with 80 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# BK4772N06252HX1N, Casting# BK4772N06252HX1N, Truck Year 2007 5B4MPG2G273421703