Of all the components used in this assembly the Cover, Housing is the most expensive.
In this schematic the "Bolt,socket" is used most often.
Parts such as the Waterpump: Bearing(4jt), Gasket, Housing Cover 2 (nas), Washer, Plate(3yl), Impeller Shaft Assy are included in the Tz125 1997 4jt4 Belgium 274jt-100e1b Waterpump parts fiche.