(USED) 2012 Peterbilt VEHICLE ECM- Serial Number: 8557029527, Part Number: A2C53378855, Version: 1.0, Sup. Code: 01035AC/QAC:2, Q21-1077-2-102 REV A. For more information about this item call. We ship Worldwide. 929 W Pulaski Hwy Elkton, MD 21921