Ignition Coil and Iridium Spark Plugs for Lincoln MKS (2009-2012) 3.7L

Direct-Fit Ignition Coil & Iridium Spark Plug Service Kit for 2009-2012 Lincoln MKS

Primary Function: Restores factory secondary ignition output and combustion efficiency across all six cylinders by replacing aged coil packs and worn spark plugs in one complete service cycle.

The Stock MKS Ignition Breakdown

The naturally aspirated 3.7L Cyclone V6 generates substantial underhood thermal cycling that degrades factory coil packs over time. The primary failure points include breakdown of internal epoxy insulation, thermal fatigue of the copper windings, and micro-cracking of the lower boots. Concurrently, factory spark plugs suffer from gap widening and electrode erosion. This degradation results in high secondary resistance, intermittent cylinder misfires under load, sluggish throttle response, rough idle conditions, and elevated unburned hydrocarbon emissions that risk fouling the catalytic converters.

The Engineering Solution

This comprehensive tune-up kit delivers six direct-fit coil-on-plug units engineered with high-dielectric epoxy potting, heavy-gauge internal copper windings, and weather-sealed blade terminals to prevent voltage leak-down and high-rpm spark blowout. Paired with six fine-wire iridium spark plugs, the assembly provides low electrical resistance, rapid flame-front propagation, and stable thermal dissipation under heavy engine loads. Factory plug-and-play connectors ensure seamless communication with the PCM without throwaway misfire DTCs.

Technical Specifications

Compatibility

• 2009 Lincoln MKS: 3.7L V6 Gas (FWD / AWD)
• 2010 Lincoln MKS: 3.7L V6 Gas (FWD / AWD)
• 2011 Lincoln MKS: 3.7L V6 Gas (FWD / AWD)
• 2012 Lincoln MKS: 3.7L V6 Gas (FWD / AWD)

The Lincoln Reliability Standard

Engineered to meet OEM ignition dwell parameters and withstand daily luxury commuter duties, this direct-replacement ignition pack delivers dependable cold-start reliability, stable idle manners, and long-term combustion integrity.