The component with the lowest price in the AIR CLEANER schematic is the Bolt-upset-wsp.
Parts such as the Air Cleaner: Element-air Filter, Cover,air Filter,side, Holder,element, Nut,6mm are included in the Klf185-a4 Bayou185 1988 United Kingdom As Air Cleaner parts fiche.
The sub assemblies and components that make up this Air Cleaner include this Case-air Filter, the most expensive part.