Ignition Coil and Iridium Spark Plugs for Lincoln MKZ (2007-2012) 3.5L

OEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2007-2012 Lincoln MKZ

Direct-fit ignition overhaul package: Restores factory secondary ignition voltage and combustion efficiency across all six cylinders on the transverse 3.5L V6 platform.

The Stock MKZ Thermal Breakdown

Transverse packaging on the CD3 chassis subjects the rear cylinder bank to sustained radiant heat soak. Over extended heat cycles, factory coil boots experience dielectric fatigue and micro-arcing, while internal copper windings develop thermal resistance drift. Combined with widened gaps on aged spark plugs, this increases required ionization voltage, triggering high-load misfires, erratic idle, and unburnt hydrocarbon loading into the catalytic converters.

The Engineering Solution

This matched service kit features heavy-gauge, high-conductivity internal copper windings encased in high-dielectric epoxy potting to eliminate internal shorting and thermal degradation. Paired with fine-wire iridium spark plugs with laser-welded center electrodes, this system lowers required ignition breakdown voltage, accelerates flame kernel propagation, and maintains precise spark timing across all operating conditions.

Technical Specifications

Compatibility

• 2007 Lincoln MKZ 3.5L V6 (FWD / AWD)
• 2008 Lincoln MKZ 3.5L V6 (FWD / AWD)
• 2009 Lincoln MKZ 3.5L V6 (FWD / AWD)
• 2010 Lincoln MKZ 3.5L V6 (FWD / AWD)
• 2011 Lincoln MKZ 3.5L V6 (FWD / AWD)
• 2012 Lincoln MKZ 3.5L V6 (FWD / AWD)

The Lincoln Refinement Caliber

Manufactured to preserve Lincoln's low NVH standards, this kit guarantees smooth idle characteristics, seamless low-end torque delivery, and zero OBD-II diagnostic fault codes under sustained load.