2008 Allison 2000, School Bus, Transmission Assys, Fits to: Freightliner B2, (Used) 2007 Allison, TRANSMISSION ASSEMBLY- Model: 2000 RETRAN, Serial Number: 9730027942, Part Number: 29544719, Engine: Mercedes 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# 9730027942, Casting# 9730027942, Truck Year 2008 4UZABPDJ18CZ38976