6 High Performance Ignition Coil for Ford Explorer (2013-2019) 3.5L Engine

Precision-Engineered Ignition Coils for 2013-2019 Ford Explorer (Duratec 35 / U502)

Direct-fit high-output ignition coils designed to eliminate secondary voltage leaks and restore combustion efficiency in the Ford 3.5L Ti-VCT engine.

The Stock Explorer Ignition Weakness

The U502 chassis environment subjects the ignition system to significant thermal stress, particularly during extended idling or towing. The factory UF646 coils often suffer from dielectric breakdown within the internal epoxy resin due to cumulative heat cycles. This degradation leads to carbon tracking and micro-fissures in the coil housing, which manifests as intermittent misfires under load, decreased fuel economy, and hesitant throttle response. Furthermore, the OEM primary and secondary windings can develop internal resistance over time, resulting in a weakened spark energy that fails to provide a clean burn, especially as the gap on the spark plugs naturally widens.

The Engineering Solution

These performance-grade replacements are engineered using high-conductive German copper wire and premium silicone magnetic steel to optimize the turns ratio. This design facilitates a more efficient step-up transformation, delivering a higher voltage ceiling and longer spark duration than standard replacements. To combat the common failure points of the Cyclone engine family, the internal components are vacuum-potted with a high-temp thermal epoxy that eliminates air pockets, providing superior insulation against moisture and high-frequency engine vibration. The reinforced thermoplastic housing offers increased chemical resistance, ensuring the coils maintain structural integrity and voltage isolation throughout the 3.5L engine's entire RPM range.

Technical Specifications

Compatibility

• 2013 Ford Explorer 3.5L V6
• 2014 Ford Explorer 3.5L V6
• 2015 Ford Explorer 3.5L V6
• 2016 Ford Explorer 3.5L V6
• 2017 Ford Explorer 3.5L V6
• 2018 Ford Explorer 3.5L V6
• 2019 Ford Explorer 3.5L V6

The Ford Performance Quality

Reliable ignition performance is critical for maintaining the towing capacity and highway stability of the U502 Explorer. These coils ensure consistent cold starts and a linear power band, providing the durability required for heavy-duty utility and long-distance transit. By stabilizing the secondary voltage output, these units protect your catalytic converters from unburnt fuel and prevent the common P0300-P0306 misfire codes that plague aging Cyclone engines.