With all the components that make up the GX240K1\SHW_A\18ZE20E8 CYLINDER BARREL assembly. The Bolt,drain Plug is the most frequently specified with two applications.
The lowest price component in this Cylinder Barrel parts-list fiche is the Washer,plug,drain 12.
Some items from this specific schematic: Pin, Lock, 10m/m, Washer,plug,drain 12, Washer,8.2x17x0.8, Bolt,drain Plug.