Parts list: № Number Qty Name Options 1 BA31354 1 Drive Kit Next page: ST845887 Hydraulic Pressure Valve, Variable Rate Drive Motor ST877571 Parallel Arm Height Switch Kit ST727485 SeedStar™ Variable Rate Hydraulic Drive, 24 Row, Attachment ST727478 Variable Rate Hydraulic Drive, Two Motor System, Attachment ST722098 Attachment, Variable Rate Drive, 16 Row, SeedStar™ ST695558 Variable Seed Drive Height Sensor Assembly (1770NT 24R, 1790 and DB Planters) (735101 - ) ST433749 Parallel Arm Height Switch (1720T)