The most reasonably priced component used on the Vzr1800 Boulevard M109r 2009 (k9) California (e33) Fuel Tank (vzr1800zk7/zk8/zk9) is the Cushion.
Some items from this specific schematic: Shield,fuel Tank Heat, Cap Set,fuel Tank, Bracket,fuel Tank Rr, Bolt.
The Fuel Tank (vzr1800zk7/zk8/zk9) is made up of components including this Tank Assy,fuel(yellow) which is the most expensive.