The most expensive part in this assembly is the Gasket Kit,b (nas).
Parts such as the Gasket Kit B(cb13009/s9/a 9/sa9): O-ring,16x1.9, O Ring,6x2, O-ring,24x3, Washer,sealing,6. are included in the Cb1300 2009 (9) Brazil / Co Mme Gasket Kit B(cb13009/s9/a 9/sa9) parts fiche.
On this parts fiche the Wash,sealing,8mm is the most specified component.