(Used) 2021 International MV607, TRANSMISSION ECM- Part Number: 29556882. Serial Number: BK6882A193555026. Trans Make: Allison, Model: 2100HS, TSN: 6311819160, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921