2011 Allison N/A, TRUCK DELIVERY, Transmission ECMs, Fits to: Workhorse Custom Chassis W62, (Used) 2011 Allison (AT), TRANSMISSION ECM- (REMANUFACTRED) DATE: 03/07/12, ECM Model: A53, Part Number: 29545538, Serial Number: BK5538N3119007E7, 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# BK5538N3119007E7, Casting# BK5538N3119007E7, Truck Year 2011 5B4LFG2E6B3445010