The forty-two Vl800c Boulevard C50 2012 (l2) Usa Californ Canada (e03 E33 E28) Turnsignal Lamp (vl800 E33) component parts are all listed in this schematic.
On this parts fiche the Clip(black) is the most specified component.
Of all the components used in this assembly the Relay Assy,turnsignal Lamp is the most expensive.