Ignition Coil and Iridium Spark Plugs for Lincoln MKT (2013-2015) 3.7L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2013-2015 Lincoln MKT

What it Does: Restores factory secondary ignition output and combustion efficiency across all six cylinders by replacing aged coils and worn plugs with direct-fit, high-dielectric coil-on-plug assemblies and fine-wire iridium spark plugs.

The Stock MKT Thermal Breakdown and Voltage Leakage

Under continuous transverse engine bay thermal loads, the factory coil-on-plug epoxy potting and silicone boots degrade over time. This thermal cycling induces micro-fracturing in the primary and secondary winding insulation, causing dielectric breakdown, spark energy dissipation, and high-load misfires. Simultaneously, standard factory spark plugs experience electrode erosion, widening the gap and forcing the ignition coils to work under elevated secondary voltages that accelerate premature coil failure.

The Engineering Solution

This comprehensive service kit pairs six reinforced ignition coils with six fine-wire iridium spark plugs engineered to factory gap specifications. Each coil assembly features high-conductivity copper windings sealed in high-grade dielectric potting compound to prevent internal arc-over and thermal insulation failure. The iridium plugs offer high thermal stability and erosion resistance, lowering the required arc voltage, ensuring consistent flame front propagation, stabilizing idle quality, and preventing unburned hydrocarbon loading on the catalytic converters.

Technical Specifications

Compatibility

• 2013 Lincoln MKT 3.7L V6 Natural Aspiration (FWD / AWD)
• 2014 Lincoln MKT 3.7L V6 Natural Aspiration (FWD / AWD)
• 2015 Lincoln MKT 3.7L V6 Natural Aspiration (FWD / AWD)

The Lincoln Reliability Standard

Engineered to meet strict luxury platform requirements, this direct-replacement ignition kit ensures clean combustion, zero check-engine light misfire codes, smooth low-RPM torque delivery, and dependable cold-weather starting for the D4 chassis.