The Gasket Set is made up of components including this Gasket Set (nas) which is the most expensive.
On this parts fiche the O Ring(d:1.2,id:4) is the most specified component.
The most reasonably priced component used on the Vl1500b Intruder 2000 (y) Usa (e03) Gasket Set is the Gasket(5.8x13x1.2) (nas).