The Cylinder Head Cover assembly is constructed from several parts from which the Gasket Set (nas) is the most expensive.
A sample from the products for the Cylinder Head Cover include: Bolt 6x25, Bolt(7x19), Clamp, Gasket,breather Cover (nas).
The most reasonably priced component used on the Gs500e 1992 (n) Usa (e03) Cylinder Head Cover is the Bolt 6x25.