The most expensive part in this assembly is the Stator Assy.
Parts such as the Generador: Stator Assy, Bolt, Hexagon Socket Head, Rotor Assy, Bolt, Hexagon Socket Head are included in the Xp500 2001 5gj1 Spain 115gj-352s6 Generador parts fiche.
In this schematic the "Bolt, Hexagon Socket Head" is used most often.