Check out any of the thirty-eight Fuel Tank(er500-b2∼b4) components enlisted.
The Screw-pan-cros is the cheapest item from this partsfiche.
A sample from the products for the Fuel Tank(er500-b2∼b4) include: "o"ring, Spring,diaphragm Vlv, Bolt,fuel Gage, Screw-pan-cros.