Check out any of the four Cylinder Head Cover components enlisted.
Parts such as the Cylinder Head Cover: Gasket,head Cover (nas), Rubber,mount, Cover Comp,cyln H, Bolt,head Cover are included in the Cbr900rr Fireblade 1998 (w) Austria / Kph Cylinder Head Cover parts fiche.
The lowest price component in this Cylinder Head Cover parts-list fiche is the Rubber,mount.