Parts such as the Turn Signal Lamp: Nut, Lamp Assembly,front Turn Signal, Relay,turn Signal, Bulb(12v21w) are included in the Gsx600f Katana 1989 (k) Usa (e03) Turn Signal Lamp parts fiche.
The Screw(3x30) is the cheapest item from this partsfiche.
The sub assemblies and components that make up this Turn Signal Lamp include this Lamp Assembly,rear Turn Signal, the most expensive part.