(Used) 2006 Allison 1000HS, TRANSMISSION ASSEMBLY- Model: A41 Part Number: 29544773, Serial Number: BK4773N16144D4J5, Motorola Part Number: ATA4102, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921