On this parts fiche the Clip is the most specified component.
Parts such as the Fuel Tank (model Z): Hose, Protector(170x95x3.0), Screw, Gasket,fuel Level Gauge (nas) are included in the Fa50 1984 (e) Usa (e03) Fuel Tank (model Z) parts fiche.
The Fuel Tank (model Z) is made up of components including this Tank,fuel which is the most expensive.