The most reasonably priced component used on the Z50r Monkey & Gorilla 1986 (g) Usa Gasket Kit B is the Oring 183.
This Gasket,kit.b (nas) is the most expensive of the items that make up this Gasket Kit B assembly.
With all the components that make up the Z50R MONKEY & GORILLA 1986 (G) USA GASKET KIT B assembly. The O-ring,6x1.7 is the most frequently specified with two applications.