Parts list: № Number Qty Name Options 1 R109066 2 Screw 2 AH217952 1 Electronic Control Unit INCLUDES (4) 37M7070 3 H169634 2 Nut Next page: ST198023 Steering Control Unit Input Sensor ST198030 Wiring Harness, 2WD ST198031 4-Wheel Drive Axle Jumper, Wiring Harness ST805742 Attachment, Harvest Smart™ Feed Rate Control System ST197460 SID Jumper Wiring Harness - RETROF ( - 740100) ST197457 Autotrac Wiring Harness (740101 - ) ST197456 Autotrac Wiring Harness ( - 740100) ST197454 AutoTrac™ Steering System Controller ST197453 Steering Control Unit