Some items from this specific schematic: Plug, Straight Screw(3aw), Plug, Blind 1, Gasket, Crankcase Cover 1 (nas), Screw Pan Head.
The Crankcase Cover 1 is made up of components including this Cover, Crankcase 3 which is the most expensive.
Check out any of the twenty-five Crankcase Cover 1 components enlisted.