Parts list: № Number Qty Name Options 1 AA85899 1 Knocker Small Hole Flat Disk 2 H136447 1 Arm 3 H136449 1 Pin Fastener Arm 4 M61287 1 Compression Spring 5 A102718 1 Knocker 5 Point 5 A53272 1 Knocker 6 Point 6 A102717 1 Seed Plate Small Hole Next page: ST766425 Pneumatic Downforce Spring, Shaft Drive, Regular Arm, Inner, Performance Upgrade Kit ST766390 Gauge Wheel, Regular ST1005767 Walking Depth Stop W/ Sensor, Performance Upgrade Kit ST1005332 High Performance Hopper, Performance Upgrade Kit ST1005558 Electric Drive, Performance Upgrade Kit ST1005351 High Performance Meter and Mountings, Performance Upgrade Kit ST800652 Brush Cartridge Guard, Performance Upgrade Kit ST977034 Seed Cleanout Tray, Non-CCS™, Performance Upgrade Kit ST881154 Disk Coulter, 13 Flute, 0.7 in., Performance Upgrade Kit ST850935 Lower Bracket Hardware, Performance Upgrade Kit