The component with the lowest price in the WATERPUMP schematic is the Circlip(53v).
The Yz80lwk 1998 4lb9 Australia 284gt-300e1 Waterpump consists of eleven pieces with the Cover, Housing being the most expensive.
A sample from the products for the Waterpump include: Bolt, Flange(4kj), Cover, Housing, Circlip(53v), Gasket (4v2) (nas).