On this parts fiche the Clamp,water Hose is the most specified component.
The most reasonably priced component used on the Gl1500se Goldwing Special Edition 1992 (n) Belgium / Kph Radiator is the Screw Wash,4x18.
The twenty-five Gl1500se Goldwing Special Edition 1992 (n) Belgium / Kph Radiator component parts are all listed in this schematic.