2018 Allison 2500RDS, Truck Delivery, Transmission ECMs, Fits to: International DuraStar 4300, (Used) 2016 Allison (AT), TRANSMISSION ECM- ECM Model: A61, Part Number: 29556882, Serial Number: BK6882A162940087, Transmission information- Model: 2500RDS, Serial Number: 6311505379, Plug Pins: 80 Pins Plug Rectangular, 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, Serial# BK6882A162940087, Casting# BK6882A162940087, Truck Year 2018 1HTMMMML6JH534451