Parts such as the Rear Combination Lamp (e18): Lock Washer, Bulb(12v21/5w), Spacer (6.8x10x11.5), Lamp Assy, Rear Combination are included in the Gsx250s 1982 (z) General Export (e01) Rear Combination Lamp (e18) parts fiche.
The Bulb(12v21/5w) is the cheapest item from this partsfiche.
The most expensive part in this assembly is the Lamp Assy, Rear Combination.