Rotor arm for Lancia Montecarlo S2 models with standard
Marelli SM801BX electronic ignition distributors.
Compatible with ignition pickup
SV312
and distributor cap
SV306.

Also applicable to
Lancia Beta Coupé, Spider & HPE models with block mounted Marelli distributor using points (contact set / breakers)
SV412
or factory electronic ignition.