The Rubber, Mount is the cheapest item from this partsfiche.
Parts such as the Cylinder Head Cover: Bolt,special 6x64, Rubber, Mount, Socket Bolt,6x18, Cover,cyln Head are included in the Gl1500c Valkyrie 2000 (y) Austria Cylinder Head Cover parts fiche.
In this schematic the "Plug.6mm Hex." is used most often.