(Used) 2011 Freightliner B2 Allison 2500PTS TRANSMISSION ECM - Part Number: 29545536, Serial Number: BK5536N100600A62, TCM+CAL: A5100MSV, CIN: 4C00MSV003T, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921