Ignition Coil and Iridium Spark Plugs for Dodge Journey (2009-2010) 3.5L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2009-2010 Dodge Journey

What it Does: Restores factory secondary ignition output and reliable combustion across all six cylinders by replacing degraded coil packs and worn electrodes with high-dielectric assemblies and fine-wire iridium plugs.

The Stock Journey Ignition Breakdown

The transverse engine layout of the JC platform exposes the rear cylinder bank to extreme engine bay heat soak. Over time, OEM coil pack epoxy degrades, causing micro-fracturing and internal thermal breakdown. Combined with standard plug gap erosion, the increased electrical resistance strains the secondary windings, resulting in intermittent misfires (DTC P0300-P0306), unburnt fuel loading the catalytic converters, and sluggish throttle response under load.

The Engineering Solution

This complete 6-cylinder tune-up kit features heavy-duty coil-on-plug units wound with high-purity electrolytic copper wire, optimizing step-up voltage transformation and spark saturation. High-temperature silicone boots seal out moisture and prevent voltage flashover. Paired with fine-wire iridium center electrode spark plugs, this kit reduces required firing voltage, provides clean flame kernel propagation, and maintains precise gap tolerances under heavy thermal cycling.

Technical Specifications

Compatibility

• 2009 Dodge Journey R/T 3.5L V6
• 2009 Dodge Journey SXT 3.5L V6
• 2010 Dodge Journey Crew 3.5L V6
• 2010 Dodge Journey R/T 3.5L V6
• 2010 Dodge Journey SXT 3.5L V6

The Dodge Crossover Reliability Standard

Built to handle daily passenger loads, long-distance commuting, and harsh cold-weather cold starts, this complete ignition refresh maintains balanced cylinder pressure and optimal fuel burn without triggering CEL faults.