The most reasonably priced component used on the Km100-a4 1979 Usa Canada / Mph Kph Engine Covers is the Washer,6.1x12x1.
The Engine Covers assembly is constructed from several parts from which the Cover,r.h Engine is the most expensive.
This ENGINE COVERS assembly utilises six Screw-pan Head,6x30(s) - the highest specified component.