Ignition Coil and Iridium Spark Plugs for Chrysler 300 (2006-2010) 2.7L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2006-2010 Chrysler 300

Primary Function: Restores factory secondary ignition output to eliminate engine misfires, rough idle, and unburned fuel delivery on the Chrysler 2.7L V6 platform.

The Stock 300 Coil Degradation and Voltage Leakage

Mounted directly into the deep spark plug wells of the 2.7L DOHC EER engine, factory coil-on-plug packs endure aggressive thermal cycling. Over mileage, prolonged underhood heat soak degrades the internal epoxy potting and stresses the copper winding insulation. This thermal fatigue causes internal arc-over, weak spark output, and spark blowout under load, leading to diagnostic trouble codes P0300 through P0306 and sluggish throttle response.

The Engineering Solution

This service kit provides six high-output coil assemblies paired with laser-welded iridium spark plugs for balanced combustion chamber efficiency. The coils utilize high-grade internal copper windings and reinforced dielectric housings to resist dielectric breakdown and thermal fatigue. Paired with corrosion-resistant, fine-wire iridium center electrodes, the system maintains consistent gap integrity and provides lower required firing voltage for crisp transient response and stable idle control.

Technical Specifications

Compatibility

• 2006 Chrysler 300 Base / LX 2.7L V6
• 2007 Chrysler 300 Base / LX 2.7L V6
• 2008 Chrysler 300 LX 2.7L V6
• 2009 Chrysler 300 LX 2.7L V6
• 2010 Chrysler 300 LX 2.7L V6

The Chrysler Muscle Standard

Calibrated specifically for the rear-wheel-drive LX platform, these ignition components restore clean, reliable power delivery and steady cruising efficiency without triggering check engine lights.