MSD 8239 Blaster 4-Tower Ignition Coil - High Voltage, CARB Approved

The MSD 8239 Blaster 4-Tower Ignition Coil is a direct-fit, high-performance replacement coil engineered to deliver a stronger, more consistent spark than the factory unit. Built with a 77:1 turns ratio and reduced primary resistance, this coil pack generates up to 36,000 volts of peak output for improved throttle response, smoother idle, and more efficient combustion.

Compatible with both stock ignition systems and MSD ignition controls, the 8239 offers an easy bolt-on upgrade path. It features flat terminal connections — note that some OE coils use round terminals; contact MSD customer service for the appropriate adapter (Mopar PN M04897087AA or MSD Adapter ASY30160) if needed. For use with an MSD DIS ignition system, pair with MSD harness PN 8883 for a direct plug-in connection.

Key Features:

• 77:1 turns ratio with low primary resistance for maximum voltage output
• 36,000V maximum output — up from typical OEM levels
• 7.0 mH inductance for strong, sustained spark energy
• 0.51 ohm primary / 12,000 ohm secondary resistance
• Epoxy-filled square coil pack construction for durability
• Flat terminal (Male/HEI) connector interface
• Bolt-on direct fit — no modifications required
• Compatible with stock ignition systems and MSD ignition controls
• CARB E.O. Number D-40-37 — street legal in California
• Sold individually; mounting bracket not included

The MSD 8239 is finished in MSD's signature red and is designed as a performance upgrade over the OEM coil pack for a wide range of sport compact and domestic vehicles from 1994–2006. CARB E.O. approved for use in emissions-controlled vehicles.