In this schematic the "Bolt, Washer Based" is used most often.
The Cylinder assembly is constructed from several parts from which the Cylinder Head Assy is the most expensive.
Parts such as the Cylinder: Gasket (nas), Bolt, Washer Based, Nozzle 1, Cap, Case are included in the Fz6-nahg 2008 5s42 Greece 1g5s4-300e1 Cylinder parts fiche.
