The Cylinder Head is made up of components including this Cylinder Head Assy which is the most expensive.
The most reasonably priced component used on the Xs650 1980 (a) Usa Cylinder Head is the Washer(526).
Parts such as the Cylinder Head: Screw Pan Head, Hose (l285), Cover, Cylinder Head Side 3, Way 3 (3l1) are included in the Xs650 1980 (a) Usa Cylinder Head parts fiche.