The component with the lowest price in the CRANKCASE COVER 1 schematic is the O-ring (2h9).
Parts such as the Crankcase Cover 1: Bolt, Flange(3es), Cover, Crankcase 3, Pin,dowel(296), Plug, Oil are included in the Tzr125 1993 4jb1 Europe 234jb-300e1 Crankcase Cover 1 parts fiche.
Of all the components used in this assembly the Cover, Crankcase 2 is the most expensive.