Trimble Auto Steer System, Ag-Leader Technology Screen, Ran On A Trimble Steering System For John Deere 8000 Series Tractor, Main Screen Switch Box, DirectCommand Controller NAV Controller, Trimble Radio, GPS Antenna, RTK Antenna, Liquid Control Module Or Product Control Module, Steering Sensor, Steering Valve, Autopilot Interface, Auto Swath, Multi-Product, 9.1.0 Version