good used rotor arm from a Citroen SM, will also fit early versions of the Maserati Merak. It was taken from a running car last week, which has been upgraded to 123 ignition. It will only fit cars running with points, as the rotor has 4 reinforcement vanes underneath - the cars that have Lumenition have to have the later rotor arm with only 3 vanes. There is a small chunk of the outer wall which is missing, it can be seen in the first photo in the 1 o'clock position - it doesn't not affect the functioning of the component, and is reflected in the price. Very rare, not available new, hence well worth having as a spare.
