The component with the lowest price in the CRANKCASE schematic is the Clip,tube 5.0mm.
fifteen components are shown in this Z50j3 Monkey 1990 (l) Finland Hp Crankcase exploded diagram.
Parts such as the Crankcase: Crankcase Comp.,l, Stud A, Cylinder, Bolt,flange Sh 6x65, Drain Cock are included in the Z50j3 Monkey 1990 (l) Finland Hp Crankcase parts fiche.