The Crankcase ('81-'82 A2/a3) assembly is constructed from several parts from which the Crankcase Set is the most expensive.
Some items from this specific schematic: Breather, Clamp,wiring Harness, Screw-pan Head,6x70, Screw-pan Head,6x55.
The Pin,dowel,10x8.2x14 is the lowest priced item on this Crankcase ('81-'82 A2/a3) schematic.