Ignition Coil and Iridium Spark Plugs for Mitsubishi Outlander (2008-2013) 2.4L

Direct-Fit Ignition Coil & Iridium Spark Plug Service Kit for 2008-2013 Mitsubishi Outlander

Primary Function: Direct-replacement 4-cylinder ignition overhaul kit engineered to restore factory secondary spark voltage, eliminate under-load misfires, and stabilize idle combustion.

The Stock Outlander Ignition Breakdown

Under repeated thermal cycling within the tight cylinder head wells of the 4B12 engine, OEM ignition coils suffer from dielectric breakdown in the internal epoxy resin and micro-cracking across copper windings. This increased internal resistance produces weak spark energy, ignition hesitation, poor fuel economy, and P0300-P0304 misfire diagnostic trouble codes. Over extended intervals, electrode erosion on worn spark plugs widens the spark gap, driving up the required ionization voltage and accelerating thermal fatigue on aging coil packs.

The Engineering Solution

This service kit resolves secondary ignition loss by pairing four direct-fit coils featuring oxygen-free copper windings with four fine-wire iridium center electrode spark plugs. High-dielectric thermoset casings isolate high voltage to prevent spark scatter, while thermal-resistant boot sleeves guard against arc-through in deep plug wells. The laser-welded iridium plugs provide precise flame kernel propagation and reduced voltage demand under MIVEC variable valve load.

Technical Specifications

Compatibility

• 2008-2013 Mitsubishi Outlander ES 2.4L L4
• 2008-2013 Mitsubishi Outlander SE 2.4L L4
• 2011-2012 Mitsubishi Outlander XLS 2.4L L4
• Interchange: UF-589, C1694, 5C1751, 52-2106

The Mitsubishi Reliability Standard

Engineered to exact Japanese powertrain tolerances, this kit restores crisp throttle response, clean cold starts, and reliable high-rpm combustion without throwing check engine lights.