(Used) 2003 Allison (AT), TRANSMISSION ASSEMBLY- Model: HD4060, Serial Number: 6610129516, Part Number: E001536, Engine: Caterpillar C10, 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