Parts such as the Fuel Tank (gsx1100d/ed): Cushion, Tape Set, Fuel Tank, Tank, Fuel, Washer (6.5x24x1.6) are included in the Gsx1100es 1983 (d) United Kingdom Germany (e02 E22) Fuel Tank (gsx1100d/ed) parts fiche.
Of all the components used in this assembly the Tank, Fuel is the most expensive.