The Clamp D 10.0 Tube is the lowest priced item on this Water Pump schematic.
Some items from this specific schematic: Bolt,flange,6x25, Tube,water Pump, Clamp D 10.0 Tube, Pump Comp,water.
The sub assemblies and components that make up this Water Pump include this Pump Comp,water, the most expensive part.