6 High Performance Ignition Coil for Ford F150 (2011-2016) 3.5L Engine

High-Output Ignition Coil Set for 2011-2016 Ford F-150 (EcoBoost/P415)

What it Does: Direct-replacement high-voltage ignition coils designed to eliminate spark blowout and restore combustion stability in Ford’s twin-turbocharged 3.5L EcoBoost engines.

The Stock F-150 Spark Delivery Weakness

The factory ignition system on the 3.5L EcoBoost platform is a frequent failure point, particularly when subjected to the high cylinder pressures generated under boost. Over time, the OEM coils suffer from dielectric breakdown and thermal fatigue of the internal copper windings. This leads to carbon tracking and insulation failure, resulting in the dreaded "EcoBoost shudder" or misfires under load. In many cases, the stock coils cannot maintain sufficient voltage during heavy towing or wide-open throttle, causing spark blowout where the dense air-fuel mixture essentially extinguishes the arc before complete combustion occurs.

The Engineering Solution

These high-performance coils are engineered to surpass the factory UF646 specifications by utilizing high-grade silicone magnetic steel and optimized winding ratios. This modification increases the total energy output and extends spark duration, ensuring a more consistent burn in direct-injection environments. The housings are filled with a high-dielectric epoxy that resists vibration and heat soak—critical for the F-150’s tightly packed engine bay. By improving the thermal conductivity of the internal components, these coils prevent the resistance spikes that plague stock units, while the included tune-up grease ensures a moisture-tight seal against the spark plug porcelain to prevent flashover.

Technical Specifications

Compatibility

• 2011-2014 Ford F-150 3.5L V6 (P415 Chassis)
• 2015-2016 Ford F-150 3.5L V6 (P552 Chassis)

The Ford Towing Caliber

Engineered for the rigors of heavy-duty hauling, these coils are built to maintain peak voltage throughout the entire RPM range. Whether you are towing a trailer through a mountain pass or navigating a job site, this upgrade provides the reliability needed to prevent power loss and maximize fuel economy under high-load conditions.