A distributor is a device that routes high voltage from the ignition coil to the spark plugs in the correct firing order. The distributor cap has one post for each cylinder, and a central post for the current from the ignition coil coming into the distributor.
In high energy ignition (HEI) systems there is no central post and the ignition coil sits on top of the distributor. On the inside of the cap a terminal corresponds to each post, and the plug terminals are arranged around the circumference of the cap according to the firing order in order to send the secondary voltage to the proper spark plug at the right time.
- Intermotor™ distributor caps are made of high dielectric strength, glass/mineral reinforced polyester resin for less carbon tracking, greater resistance to electrical breakdown, and superior performance
- Solid brass terminals make better connections and greater resistance to electrical pitting and corrosion resulting in Intermotor™ caps lasting longer and performing better
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