(Used) 2012 Allison, TRANSMISSION ECM- ECM Model: 5431-V, Part Number: ATA5101, Serial Number: A510114S, CIN: 4F0114S003L, Volts: 12, Transmission Model: 2100RDS, Serial Number: 6311150994 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