0 Allison 2500PTS, , Transmission Assys, Fits to: , (Used) Allison (AT), TRANSMISSON ASSEMBLY- Model: 2500PTS, Serial Number: 6310984676, 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# 6310984676, Casting# 6310984676,