(Used) 2012 Allison (AT), TRANSMISSION ECM- ECM Model: A61, Serial Number: BK0689A132810278, Part Number: 29550689, Trans Model: 2200HS, Serial Number: 6311241077, Engine: Cummins ISB, Voltage: 12V, Pin Plug: 80 Pins, Rectangular Plug, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI ELKTON, MD 21921