Distributor Cap for 1975-1985 Chevrolet Impala & More - MSD 84111

Route high-voltage spark to every cylinder with the MSD IGNITION distributor cap, part number 84111. This Extreme Output HEI cap was molded by MSD to stand up to the high output of their 20-amp extreme HEI module, and it drops onto the MSD HEI Pro-Billet distributor, PN 8365. It fits a wide range of 1975-1986 GM vehicles, including the Chevrolet Camaro, Corvette, El Camino, Monte Carlo, C10 and K5 Blazer, plus GMC, Buick, Oldsmobile and Pontiac applications — see the Buyer's Guide tab for the full list.

• Built for high output: molded to withstand the current of MSD's 20-amp extreme HEI module.
• Designed with performance in mind: engineered as a matched cap for the MSD HEI Pro-Billet distributor PN 8365.
• High-quality voltage-insulating material: helps contain spark energy and resist voltage leakage.
• Stainless terminals: stainless-steel contacts carry current to the plug wires.

A distributor cap passes coil voltage to each spark-plug wire in firing order. Cracks, carbon tracking or corroded terminals can cause misfires, hard starting or rough running; if a failed cap is the cause, this replaces it. Fits the listed 1975-1986 applications — see the Buyer's Guide tab for the complete fitment.