Some items from this specific schematic: Pipe R,water Outl, Sub Harness,eng, Bolt,flange,6x14, Pipe L,water Outl.
The Water Pipe / Thermostat assembly is constructed from several parts from which the Sub Harness,eng is the most expensive.
The most reasonably priced component used on the Gl1500cd Valkyrie 2003 (3) California Water Pipe / Thermostat is the Bolt,flange,6x14.