Ignition Coil and Iridium Spark Plugs for Lincoln MKT (2010-2012) 3.5L

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

What it Does: The ignition coil and iridium spark plug kit restores secondary ignition voltage and combustion efficiency on the 2010-2012 Lincoln MKT to eliminate boost-induced misfires and restore throttle response.

The Stock Lincoln MKT Coil Breakdown and Spark Blowout

The forced-induction environment of the twin-turbocharged 3.5L EcoBoost engine creates severe thermal stress within the deep spark plug wells of the D4 chassis. Over time, high combustion pressures and engine bay heat soak cause the factory silicone coil boots to harden and develop micro-cracks. This degradation leads to dielectric breakdown, high-voltage leakage, and carbon tracking. Concurrently, factory spark plug gaps erode, elevating electrical resistance and causing spark blowout under peak boost, triggering flashing check engine lights and DTC misfire codes (P0300 through P0306).

The Engineering Solution

This direct-replacement kit pairs six heavy-duty pencil ignition coils with six fine-wire iridium spark plugs to stabilize primary-to-secondary voltage transfer. The coils feature high-temperature epoxy potting and premium magnetic core laminations to resist heat-induced resistance spikes. Reinforced fluorosilicone boots provide maximum dielectric insulation to prevent arcing to the cylinder head. The matched fine-wire iridium center electrode plugs maintain a stable spark gap under boost, providing superior ignitability, quench resistance, and reliable flame kernel propagation under load. These units directly replace OEM numbers DG524 and UF612.

Technical Specifications

Compatibility

• 2010 Lincoln MKT Base 3.5L V6 Turbocharged AWD
• 2011 Lincoln MKT Base 3.5L V6 Turbocharged AWD
• 2012 Lincoln MKT Base 3.5L V6 Turbocharged AWD
• 2010-2012 Lincoln MKT EcoBoost 3.5L V6 Turbocharged

Frequently Asked Questions

Does this fit the D4 MKT?
Yes, this is a direct fit for the 2010-2012 Lincoln MKT equipped with the 3.5L EcoBoost engine.

Are the iridium spark plugs pre-gapped for EcoBoost applications?
While the plugs arrive factory-gapped, verify with a feeler gauge to ensure they match factory turbo gap specifications (0.030–0.033 in) before torquing.

The Lincoln Refinement Caliber

Engineered to deliver smooth, vibration-free power delivery, this complete ignition tune-up kit restores the whisper-quiet idle and effortless high-speed passing power expected of Lincoln's flagship luxury crossover.