Ignition Coil and Iridium Spark Plugs for Mitsubishi Endeavor (2004-2011) 3.8L

Direct-Fit Ignition Coil and Iridium Spark Plug Tune-Up Kit for 2004-2011 Mitsubishi Endeavor

What it Does: Replaces degraded factory coil-on-plug assemblies and worn spark plugs to eliminate misfires, restore primary ignition voltage, and ensure complete combustion across all six cylinders.

The Stock Endeavor Ignition Breakdown and Heat Fatigue

The transverse layout of the 3.8L 6G75 V6 subjects the rear cylinder bank (cylinders 1, 3, and 5) to severe thermal loading beneath the intake plenum. Over time, OEM coil boots degrade, internal copper windings develop micro-fractures, and factory standard plugs experience electrode erosion. This breakdown causes dielectric punch-through, secondary voltage loss, intermittent cylinder misfires (DTC P0300-P0306), sluggish throttle response, and unburned fuel entering the catalytic converters.

The Engineering Solution

This complete ignition kit provides six high-dielectric coil-on-plug assemblies engineered with high-conductivity internal copper windings and heavy-duty silicone boots to resist thermal breakdown and prevent flashover. Paired with six fine-wire iridium spark plugs, the system requires lower ionization voltage while delivering a hotter, more stable spark kernel. Direct-fit blade terminals and factory-matched electrical connectors ensure plug-and-play installation without harness modifications.

Technical Specifications

Compatibility

• 2004-2011 Mitsubishi Endeavor LS 3.8L V6 (FWD / AWD)
• 2004-2011 Mitsubishi Endeavor XLS 3.8L V6 (FWD / AWD)
• 2004-2011 Mitsubishi Endeavor Limited 3.8L V6 (FWD / AWD)
• 2010-2011 Mitsubishi Endeavor SE 3.8L V6 (FWD / AWD)

The Mitsubishi Reliability Standard

Engineered to handle daily commuting, heavy cargo loads, and steep grades, this ignition kit restores the smooth torque delivery and robust firing consistency expected from Mitsubishi's 3.8-liter powertrain.