Parts list: № Number Qty Name Options 1 AT370807 1 Multi-Functional Controller 1 AT372907 1 Software Software Available Through John Deere Custom Performance Website Next page: ST700096 Engine Control Unit (ECU) (Engine 4045HT054, 4045HT072, 4045HT086, 4045HT087) ST700097 Engine Control Unit (ECU) (Engine 4045TT096) ST700099 Differential Lock Control Switch ST700707 Return-to-Dig Wiring ST763845 Machine Ignition and Lock Key ST700082 Switch Plug without Mechanical Front Wheel Drive PICT-1675.1 1675 System Controls