(Used) 2020 Allison 3000RDS, TRANSMISSION ECM- Part Number: 29556882, Model: Allison, Serial Number: BK6882A100225650, Plug Pins: 80, ADD AS MUCH INFORMATION AS POSSIBLE! For more information about this item,give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921