2012 Allison 2500PTS, Truck Delivery, Transmission Assys, Fits to: Freightliner B2, (Used) 2011 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2500PTS, Serial Number: 6311046417, Engine: Cummins ISB 6.7, 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# 6311046417, Casting# 6311046417, Truck Year 2012 4UZABRDUXCCBH0511