MSD 84022 Extreme Output Internal Coil Dust Cover for HEI Pro-Billet Distributor

The MSD 84022 Extreme Output Dust Cover is a custom-molded internal coil cover engineered specifically to handle the high-output demands of MSD's HEAT HEI ignition module. When MSD developed their 20-amp Extreme HEI module, standard caps, rotors, and coil covers simply weren't built to withstand the elevated electrical output — so MSD designed and molded their own solution from the ground up.

Key Features:

• Custom-molded coil cover built to withstand extreme ignition output
• Designed specifically for use with MSD's HEAT HEI ignition module
• Finished in bold red for easy identification under the hood
• Sold individually
• Emissions legal — legal for use on emissions-controlled vehicles, uncontrolled vehicles, and racing applications

Compatibility & Part Pairings:

• Fits MSD HEI Pro-Billet Distributor, PN 8365
• Use with MSD Extreme Output HEI Cap, PN 84111
• Use with MSD Extreme Output Rotor, PN 84101

The MSD 84022 coil cover is the correct replacement or upgrade component when running an MSD Extreme Output HEI cap and rotor kit, ensuring all components are matched to handle the same high-energy ignition system.