2011 Allison Other, Truck Delivery, Transmission Assys, Fits to: Pierce Arrow XT, (Used) 2010 Allison (AT), TRANSMISSION ASSEMBLY- Model: 4500EV_PR, Serial Number: 6610322024, Engine: Cummins ISM 500, 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# 6610322024, Casting# 6610322024, Truck Year 2011 4P1CA01E2BA011994