With five applications this Clamp,water Hose is the most specified part.
A sample from the products for the Radiator include: Washer, Screw 4x8, O-ring 13.5x1.4, Nut,cap,5mm, Screw Wash,4x18.
The most reasonably priced component used on the Gl1500 Goldwing 1989 (k) Usa California Radiator is the Washer, Screw 4x8.