With a quantity of eight pieces, the Bolt, Hexagon Socket Head(1vj) is the most used part in the CRANKCASE COVER LEFT diagram.
Some items from this specific schematic: Cover, Crankcase 1 (l.h), Plug, Oil Level, Bolt, P1n, Dowel.
The component with the lowest price in the CRANKCASE COVER LEFT schematic is the Bolt.