Parts list: № Number Qty Name Options 1 AA32776 1 Drive Sprocket Z = 12 and 50 2 A46643 1 Spring 3 A51001 1 Screw 4 A51002 1 Arm Idler RH 5 A31867 3 Lock Nut 6 19M7303 2 Cap Screw M12 X 45 7 A50386 1 Chain Sprocket Z = 28 8 28H3412 1 Washer 0.493" X 0.675" X 3/8" Next page: ST1043276 Idler, Drive Wheel ST743348 Attachment, Seed Drive Transmission, Bolt-on ST519262 Drillshaft ST519251 Wheel Assembly ST721116 Attachment, RowCommand™ Clutches / Pro-Series XP™ Row Unit , 16 Row ST819735 Bracket W/ Idler Sprocket (765101 - ) ST530092 Idler, Drive Wheel ST519269 Seed Transmission (LH Illustrated) ST1044658 Wheel Hub and Spacer ST1044656 Traction Wheel