The Gasket Kit B assembly is constructed from several parts from which the Gasket Kit B is the most expensive.
In this schematic the "O-ring,9.6x2.6" is used most often.
The most reasonably priced component used on the Vfr750f Interceptor 1989 (k) Northern Europe / Kph Gasket Kit B is the Washer,plug,drain 12.