This is the rotor for the Pertronix Ignitor I and II conversion (fits the magnetic collar). Prestolite
clip down cap with Pertronix conversion.
Part number is for the rotor only and the magnetic collar is NOT included).
Distributor cap gasket Prestolite/Mallory clip down cap (clips with screws at the base) 70's thru part of 1987. Also fits the newer Mallory distributors that require a gasket. The Mallory 209 cap now requires a gasket.