(Used) 2003 Allison (AT), TRANSMISSION ASSEMBLY- Model: HD4060, Serial Number: 6610124638, Part Number: E005485, Engine: Mack E7, 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