Shed clear out, I purchased this second hand a couple of years ago as mine had snapped after ill loading my van. Although duck tape kept my broken one going it was purchased in readiness for the next mot.
When the van went in for a pre mot 8-9 months later it was to cost to pass more than the van was worth so it was scrapped and the part never fitted.
Not sure what it is called but the complete set up as seen in the picture. (paid £65 delivered via a breaker).
Indicators and lights on left,
will post UK mainland price included.