In this schematic the "Clamp, Breather Tube" is used most often.
Parts such as the Air Cleaner: Tube,air Switch Valve, Clamp, Clamp, Tube,tube 4x9x290 are included in the En500a3 Vulcan500 1992 Usa California Canada Air Cleaner parts fiche.
The Bolt-flanged is the lowest priced item on this Air Cleaner schematic.