Ignition Coil Spark Plugs for Ford Explorer (2020-2023) 2.3L

Direct-Replacement Ignition Coil and Spark Plug Tune-Up Kit for 2020-2023 Ford Explorer (U625)

What it Does: The Ignition Coil and Spark Plug Kit restores complete combustion efficiency on the 2020-2023 Ford Explorer to resolve cylinder misfires, rough idle, and hesitation under load.

The Stock Ford Explorer Ignition Coil Breakdown

The turbocharged 2.3L EcoBoost platform subjects ignition components to extreme cylinder pressures and prolonged underhood thermal cycling. Over time, OEM coil-on-plug packs suffer dielectric breakdown within their internal winding insulation, leading to secondary voltage leakages and premature spark blowout under boost. Concurrently, factory spark plugs experience electrode erosion, increasing the plug gap beyond optimal clearance. This compound wear forces the ignition coils to work harder, throwing diagnostic trouble codes (DTCs such as P0300 through P0304), inducing unburnt fuel wash across the cylinder walls, and causing distinct stutter during mid-range acceleration.

The Engineering Solution

This service kit resolves secondary ignition failure by pairing direct-fit coil-on-plug modules with fine-wire iridium spark plugs. The ignition coils feature epoxy-poured primary and secondary windings insulated against high thermal degradation, complete with high-temp silicone boots that isolate voltage to the plug terminal. Matched fine-wire iridium center electrodes require substantially lower striking voltage to discharge, sustaining arc stability through wide boost swings while mitigating gap degradation far longer than conventional standard core plugs.

What's Included

• 4 Ignition Coils (black)
• 4 Iridium Spark Plugs

Technical Specifications

Compatibility

• 2020 Ford Explorer 2.3L I4 (Base, XLT, Limited)
• 2021 Ford Explorer 2.3L I4 (Base, XLT, Limited, Timberline)
• 2022 Ford Explorer 2.3L I4 (Base, XLT, Limited, Timberline)
• 2023 Ford Explorer 2.3L I4 (Base, XLT, Limited, Timberline)

Frequently Asked Questions & Fitment Warnings

Does this fit the U625 Explorer?

Yes, this is a direct fit for the 2020-2023 Ford Explorer equipped with the 2.3L EcoBoost engine. This kit does not fit 3.0L EcoBoost V6 or 3.3L V6 Hybrid models.

What torque procedure should be observed during installation?

Torque the iridium spark plugs to factory spec into a cold cylinder head and hand-snug the coil mounting bolts without overtightening into the aluminum valve cover threads.

The Ford Durability Standard

Built to handle sustained load, frequent towing duty, and thermal heat soak, this ignition overhaul restores balanced cylinder combustion across all four cylinders to maintain factory towing capacity and low-end torque delivery.