In this schematic the "Bolt,socket" is used most often.
A sample from the products for the Waterpump include: Impeller Shaft Assy, Pin,dowel (603), Bearing(4jt), Oil Seal (4v2).
The Tz125 1997 4jt4 Japan 274jt-100e1d Waterpump consists of eleven pieces with the Cover, Housing being the most expensive.