Some items from this specific schematic: Bulb 12v 21w, Gasket (nas), Bracket,rr Turn Signal Lamp, Bulb 12v 21w.
The lowest price component in this Turn Signal Lamp (e25) parts-list fiche is the Screw.
The Turn Signal Lamp (e25) is made up of components including this Lamp, Front Turn Signal which is the most expensive.