The Crankcase Oil Pump assembly is constructed from several parts from which the R Crankcase is the most expensive.
This schematic depicts all components used in the Z50r Monkey 1979 (z) Usa Crankcase Oil Pump partslist.
Parts such as the Crankcase Oil Pump: Rotor,pump Outer, Screw,pan,6x16, Rotor,pump Inner, Washer,spg.,5mm are included in the Z50r Monkey 1979 (z) Usa Crankcase Oil Pump parts fiche.