2007 Allison 2200HS, Truck Delivery, Transmission ECMs, Fits to: Freightliner MT55 Chassis, (Used) 2007 Allison (AT), TRANSMISSION ECM- ECM Model: A41, Part Number: 29545322, Serial Number: BK5322N1701R10W, Transmission information- Model: 2200HS, Serial Number: 6310751389, Plug Pins: 80 Pins Plug Rectangular, 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# BK5322N1701R10W, Casting# BK5322N1701R10W, Truck Year 2007 4UZAARCP57CY93043