Ignition Coil and Iridium Spark Plugs for Lincoln MKT (2010-2012) 3.7L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2010-2012 Lincoln MKT

Primary Function: Restores factory secondary ignition output, eliminates high-load misfires, and stabilizes idle across all cylinders on naturally aspirated 3.7L Cyclone V6 engines.

The Stock MKT Ignition Degradation

The Duratec 37 engine in the D4-chassis MKT subjects its coil-on-plug assemblies to sustained thermal soak deep within the cylinder head spark plug wells. Over time, OEM coil epoxy insulation degrades and internal copper primary/secondary windings develop micro-shorts. Concurrently, standard electrode erosion on factory plugs widens the gap, increasing the required ionization voltage. This thermal degradation directly causes spark blowout under load, sluggish throttle response, erratic idle, and recurring P0300-P0306 diagnostic trouble codes.

The Engineering Solution

This comprehensive tune-up kit features six heavy-duty ignition coils paired with six fine-wire iridium spark plugs. The coil assemblies are engineered with high-grade internal copper windings and dielectric epoxy potting to withstand extreme heat cycles without voltage leakage. The fine-wire iridium center electrodes provide a concentrated spark kernel at lower firing voltages, reducing electrical strain on the ignition drivers while ensuring complete fuel atomization and consistent flame propagation under high engine loads.

Technical Specifications

Compatibility

• 2010 Lincoln MKT Base 3.7L V6 Gas (Chassis: D4)
• 2011 Lincoln MKT Base 3.7L V6 Gas (Chassis: D4)
• 2012 Lincoln MKT Base 3.7L V6 Gas (Chassis: D4)

The Lincoln Refinement Caliber

Engineered to preserve the quiet, vibration-free operation expected of luxury crossovers, this ignition package delivers precise timing synchronization without check engine lights or drivability compromises.