2004 Allison MD3060, , Transmission Assys, Fits to: Other Other, (USED) 2003 Allison (AT), TRANSMISSION ASSEMBLY- Model: MD3060 Serial Number: 6510421306 Engine: Caterpillar 3126 For more information about this item call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 6510421306, Casting# 6510421306, Truck Year 2004