Ignition Coil & Spark Plugs for Ford Explorer (2017-2019) 3.5L V6

Direct-Replacement Ignition Coil & Spark Plugs for 2017-2019 Ford Explorer

Restores proper engine ignition timing and combustion efficiency for the 3.5L V6 by replacing failing OEM coils and worn plugs.

The Stock Explorer Ignition Weakness

The factory ignition coils on the U502-chassis Ford Explorer equipped with the 3.5L Cyclone V6 are notorious for thermal degradation over high-mileage cycles. Because these coils sit in a high-temperature environment directly above the cylinder heads, the internal epoxy potting breaks down, leading to micro-cracking. This degradation allows moisture ingress and voltage leaks, resulting in primary or secondary winding failures. Symptoms typically present as severe engine misfires under load, rough idling, blinking check engine lights (P0300-P0306 codes), and degraded fuel economy due to incomplete combustion events.

The Engineering Solution

This comprehensive service kit directly resolves these ignition issues by utilizing highly conductive copper internal windings to ensure consistent secondary voltage output. The ignition coils feature a high-dielectric epoxy injection that eliminates internal air pockets, preventing the voltage arc-overs common in degraded OEM units. The external housings are molded from temperature-resistant thermoplastic, offering superior defense against engine bay heat soak and chemical exposure. Paired with platinum premium grade spark plugs, this system guarantees a focused, high-energy spark. The platinum center electrodes resist spark erosion and maintain a precise gap tolerance over extended intervals, ensuring optimal flame front propagation and restoring factory combustion stability without requiring modifications to the factory wiring harness.

Technical Specifications

Compatibility

• 2017 Ford Explorer 3.5L V6
• 2018 Ford Explorer 3.5L V6
• 2019 Ford Explorer 3.5L V6

The Ford Reliability Standard

For an SUV built to handle daily family hauling and moderate towing, maintaining factory ignition efficiency is non-negotiable. This complete coil and plug kit restores the dependable power delivery and smooth idling expected from the 3.5L Cyclone platform.