The Gasket Kit A is made up of components including this Gasket,cylinder H (nas) which is the most expensive.
On this parts fiche the Washer Seal 8mm is the most specified component.
Parts such as the Gasket Kit A: Washer Seal 8mm, O,ring.2,4x9,4, Gasket,cam Chain (nas), O-ring,9.4x2.4 are included in the Cn250 2005 (5) Usa Gasket Kit A parts fiche.