The Rear Master Cylinder is made up of components including this Master Cylinder Assembly which is the most expensive.
The most reasonably priced component used on the Kz550h2 Gpz 1983 Usa Canada Rear Master Cylinder is the Pin-cotter,2.0x15.
This REAR MASTER CYLINDER assembly utilises four Washer,10.5x15x1.5(s) - the highest specified component.