2012 Allison 2500PTS, School Bus, Transmission ECMs, Fits to: Freightliner B2, (Used) 2012 Freightliner B2 Allison 2500PTS TRANSMISSION ECM - Part Number: 49545536, Serial Number: BK5536N1106600CC, TCM+CAL: A5100MSV, CIN: 4F00MSV003W, 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# BK5536N110470108, Truck Year 2012, VIN 4UZABRDUXCCBH0508 4UZABRDUXCCBH0508