Some items from this specific schematic: Washer, Lock (34l), Screw, With Washer(1ae), Plate, Thrust 1, Bolt, Flange(1fn).
This Primary Driven Gear Comp. is the most expensive of the items that make up this Clutch assembly.
The lowest price component in this Clutch parts-list fiche is the Bolt, Flange(1fn).