(USED) AT Allison 2500 HS TRANSMISSION ECM- Serial Number: BK0689A143100412, Part Number: 29550689, 28366382 Trans Serial #6311332665 P/N # E018651 Truck: 2015 Freightliner M2 106 Engine: Cummins ISB 175 Trans: P-8365, Truck: GU2975 To find out more about this Transmission give us a call. We ship worldwide! Complete Recycling Group (CRG)