In this schematic the "Damper" is used most often.
Parts such as the Fuel Tank: Mole 1, Protector, Fuel Tank, Damper, Locating 3, Damper, Locating 1 are included in the Xg250 2005 4d62 Greece 1d4d6-352s1 Fuel Tank parts fiche.
The component with the lowest price in the FUEL TANK schematic is the Bolt, Flange(8ba).