Some items from this specific schematic: Cushion, Bulb(12v21/5w), Bulb(12v21w), Screw.
The most reasonably priced component used on the Vl800 Boulevard C50 2012 (l2) Usa California Canad (e03 E33 E28) Turnsignal Lamp (vl800 E33) is the Nut.
Check out any of the forty-two Turnsignal Lamp (vl800 E33) components enlisted.