Parts list: № Number Qty Name Options 1 AT157547 1 Switch 2 A89502 1 Bracket 3 03M7191 2 Bolt M10 X 25 4 14M7274 2 Nut M10 Next page: ST695558 Variable Seed Drive Height Sensor Assembly (1770NT 24R, 1790 and DB Planters) (735101 - ) ST722098 Attachment, Variable Rate Drive, 16 Row, SeedStar™ ST727478 Variable Rate Hydraulic Drive, Two Motor System, Attachment ST727485 SeedStar™ Variable Rate Hydraulic Drive, 24 Row, Attachment ST728374 Variable Rate Hydraulic Drive, One Motor System, Attachment ST433748 Variable Seed Drive (One Motor) 1720T ST433747 Center Section VRD ST433746 Wing VRD Assembly (1720 Twin Row) ST433745 Wheel Motion Sensor ST433743 WHEEL MOTION AND HEIGHT SENSORS (1720T)