The component with the lowest price in the WATER PUMP schematic is the Circlip(10w).
The Bolt (2h7) is the most widely applied product in the XVZ12TD VENTURE ROYALE 1983 (D) USA WATER PUMP ( four times ).
Some items from this specific schematic: Pin, Dowel, Bolt (3j3), O-ring, Bolt (2h7).