The most reasonably priced component used on the Mts620 2006 Eu (multistrada 620 Dark) 9151-2321b 036 Fuel Tank is the Screw Tbei M5x16.
The most expensive part in this assembly is the Fuel Tank Dark.
Parts such as the 036 Fuel Tank: Bracket Fuel Tank Left, Pin, Gasket, Pin are included in the Mts620 2006 Eu (multistrada 620 Dark) 9151-2321b 036 Fuel Tank parts fiche.