Parts such as the Gasket Kit B: O Ring,, O-ring,21.5x3.2, Gasket,l.crankcas (nas), Gasket,r.crankcas (nas) are included in the Xl600v Transalp 1990 (l) Usa Gasket Kit B parts fiche.
The sub assemblies and components that make up this Gasket Kit B include this Gasket,r Cover (mca), the most expensive part.
With two applications this O-ring,14.8x2.4 is the most specified part.