2010 Allison 2500PTS, School Bus, Transmission Assys, Fits to: Other Other, (Used) Allison, TRANSMISSION ASSEMBLY- Model: 2500PTS Serial Number: 6310938053 Engine Model: MBE 926 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# 6310938053, Casting# 6310938053, Truck Year OTHER Other