Ignition Coil Spark Plugs for Lincoln Nautilus (2019-2023) 2.0L

Direct-Replacement Ignition Coil and Spark Plug Kit for 2019-2023 Lincoln Nautilus (CD4)

What it Does: The ignition service kit replaces failing coil-on-plug units and degraded plugs on the 2019-2023 Lincoln Nautilus to resolve cylinder misfires, rough idle, and spark blowout under turbo boost.

The Stock Lincoln Nautilus Ignition Breakdown

In forced-induction direct-injection engines like the 2.0L EcoBoost, high combustion chamber pressures demand intense secondary voltage to jump the plug gap. Over time, extreme underhood thermal cycling causes internal dielectric breakdown in the factory epoxy windings. This results in secondary voltage leakage, carbon tracking down the plug insulator, and intermittent misfires under load that trigger diagnostic trouble codes and degraded fuel economy.

The Engineering Solution

This service kit resolves voltage drop by pairing high-output coil-on-plug units with fine-wire iridium spark plugs matching OEM number UF855. The coils utilize vacuum-impregnated epoxy encapsulation to resist heat soak and internal shorting, seated inside high-temp silicone boots that isolate secondary current. The accompanying iridium plugs feature a laser-welded fine-wire electrode, lowering required ignition voltage and providing superior anti-fouling resistance across all four cylinders.

What's Included

• 4 Black Coil-on-Plug Ignition Coils
• 4 Fine-Wire Iridium Spark Plugs

Technical Specifications

Compatibility

• 2019-2023 Lincoln Nautilus Standard 2.0L I4
• 2019-2023 Lincoln Nautilus Select 2.0L I4
• 2019-2023 Lincoln Nautilus Reserve 2.0L I4

Frequently Asked Questions & Fitment Warnings

Does this fit the CD4 Nautilus?

Yes, this is a direct fit for the 2019-2023 Lincoln Nautilus equipped with the 2.0L EcoBoost engine. Does not fit 2.7L EcoBoost V6 models.

Do I need dielectric grease during installation?

Applying a thin film of dielectric grease inside the silicone boots prevents boot adhesion, blocks moisture intrusion, and deters high-voltage corona arcing.

The Lincoln Refinement Standard

Lincoln crossover platforms demand clean, balanced ignition performance to maintain cabin quietness and smooth power delivery. Refreshing all four cylinders simultaneously ensures balanced cylinder pressure without rough idle vibration or hesitation under heavy acceleration.