Ignition Coil and Iridium Spark Plugs for Mitsubishi Galant (2004-2012) 3.8L

Direct-Fit Ignition Coil & Iridium Spark Plug Service Kit for 2004-2012 Mitsubishi Galant

What it Does: Restores factory secondary ignition voltage and combustion efficiency across all six cylinders by replacing aged coils and worn plugs with matched, high-dielectric components.

The Stock Galant Transverse Thermal Degradation

The transverse 6G75 V6 engine bay generates severe heat soak, especially along the rear cylinder bank tucked against the firewall. Over extended thermal cycles, OEM epoxy potting degrades, leading to dielectric breakdown, internal primary/secondary winding shorting, and high-RPM misfires. Simultaneously, standard nickel or worn plugs suffer gap erosion, increasing required breakdown voltage and overstressing the ignition drivers in the ECU.

The Engineering Solution

This comprehensive ignition tune-up kit features six heavy-duty coil-on-plug assemblies engineered with high-conductivity copper windings and heat-stabilized thermoplastic housings to resist thermal fatigue. Paired with six fine-wire iridium spark plugs, the kit ensures low arc-voltage demand, rapid flame kernel development, stable idle dynamics, and complete hydrocarbon burn under heavy load.

Technical Specifications

Compatibility

• 2004-2012 Mitsubishi Galant (3.8L V6 - GTS, Ralliart, LS, SE)

The Mitsubishi Reliability Standard

Engineered to meet exact JDM factory dwell parameters, this matched ignition set eliminates hesitation, prevents cylinder misfire fault codes, and delivers crisp throttle response across the entire 6G75 powerband.