eight components are shown in this Yfm80k 1998 Usa Oil Pump exploded diagram.
Parts such as the Oil Pump: Circlip(47x), Screw, Flat Fillister(22f), Gear, Pump Driven, Gasket, Pump Cover (nas) are included in the Yfm80k 1998 Usa Oil Pump parts fiche.
Of all the components used in this assembly the Oil Pump Assy is the most expensive.