The component with the lowest price in the GENERATOR schematic is the Bolt-flanged,6x20.
The Generator is made up of components including this Rotor which is the most expensive.
Parts such as the Generator: Regulator-voltage, Washer,12x33x5, Rotor, Bolt,socket,6x8 are included in the En650dhfa Vulcan S 2017 Europe,middle East,africa Generator parts fiche.