On this parts fiche the Screw,spl.tapping is the most specified component.
Parts such as the Air Cleaner: Collar,air/c Set, Bolt,fr Cush.und., Screw,spl.tapping, Seal,air Cleaner are included in the Sfx50 1997 (v) Netherlands Air Cleaner parts fiche.
The Air Cleaner assembly is constructed from several parts from which the Case Air/c is the most expensive.