Check out any of the fourteen Right Crankcase Cover components enlisted.
The Bolt,flange,6x50 is the cheapest item from this partsfiche.
Parts such as the Right Crankcase Cover: O Ring,21.5m/m, Gskt,r Cover (nas), Gasket,r Cover (nas), Bolt,flange,6x35 are included in the Pc800 Pacific Coast 1989 (k) Usa California Right Crankcase Cover parts fiche.