(Used) 2015 Freightliner M2 106, TRANSMISSION ECM- Make: Allison Model: 3500RDS Serial Number: BK0689A142540744 Part Number: 29550689 Truck: J16849 For more information about this item, give us a call. Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921