2003 Allison 2000, School Bus, Transmission Assys, Fits to: Freightliner FS65 Chassis, (Used) 2002 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2000SERIES, Serial Number: 6310218556, Part Number: E004556, 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# 6310218556, Casting# 6310218556, Truck Year 2003 4UZAAXAKX3CL74415