(Used) 2006 Allison (AT), TRANSMISSION ECM- ECM Model: A41, Serial Number: BK5322N17081W3X9, Part Number: 29545322, Trans Model: 2200HS, Serial Number: 6310778411, 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 HWY, ELKTON, MD 21921