Parts such as the Fuel Tank: Ring-o,tap Lever, Bolt-upset-wsp, Collar,l=19.6, Damper are included in the Kvf400-a2 Prairie4004x4 1998 Usa California Canada Fuel Tank parts fiche.
The nineteen Kvf400-a2 Prairie4004x4 1998 Usa California Canada Fuel Tank component parts are all listed in this schematic.
On this parts fiche the Damper is the most specified component.