With three applications this Bolt(4my) is the most specified part.
The Generator assembly is constructed from several parts from which the Rotor Assy is the most expensive.
Parts such as the Generator: Bolt(4my), Stator Assy, Rotor Assy, Bolt, Socket are included in the Yp250 2000 5gm2 Germany 105gm-332g2 Generator parts fiche.