The Water Pump-thermostat is made up of components including this Valve Comp,air As which is the most expensive.
The lowest price component in this Water Pump-thermostat parts-list fiche is the Bolt,flange,6x12.
Some items from this specific schematic: Sensor Assy, Tw, Bolt Flange 6x30, Bolt,flange 6x75, Pump Comp, Water.