2004 Allison MD3060, School Bus, Transmission Assys, Fits to: Thomas Built Other, (Used) 2003 Allison, TRANSMISSION ASSEMBLY- Model: MD3060, Serial Number: 6510421314, Part Number: E005841, Engine: Caterpillar 3126, 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# 6510421314, Casting# 6510421314, Truck Year 2004 1T7YN4C2441138247