Ignition Coil and Iridium Spark Plugs for Ford F-350 Super Duty (2011-2016) 6.2L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2011-2016 Ford F-350

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces degraded factory secondary ignition components on the 2011-2016 F-350 to eliminate misfires, stabilize idle quality, and restore peak towing torque under sustained loads.

The Stock Ford F-350 Dielectric Breakdown and Gap Erosion

Under heavy commercial service and sustained hauling, the Boss 6.2L V8 produces significant underhood thermal soak. Over time, the internal epoxy potting in factory pencil coils hardens and micro-fractures, allowing secondary voltage to leak to ground rather than jumping the plug gap. Simultaneously, factory spark plug electrodes suffer erosion, widening the gap and requiring higher kilovolt thresholds that overburden aging windings, leading to hesitation, carbon tracking across boots, and cylinder drop under load.

The Engineering Solution

This comprehensive service kit features high-output coil-on-plug units wound with premium magnetic copper wire and sealed with high-thermal-conductivity epoxy potting to resist thermal cycling degradation. Paired with fine-wire iridium-tipped spark plugs, this configuration lowers required firing voltage, reduces secondary coil fatigue, and ensures reliable flame kernel growth. High-dielectric silicone boots resist cracking, oil intrusion, and coronal arcing across all cylinders.

Technical Specifications

Compatibility

• 2011-2016 Ford F-350 Super Duty XL 6.2L V8
• 2011-2016 Ford F-350 Super Duty XLT 6.2L V8
• 2011-2016 Ford F-350 Super Duty Lariat 6.2L V8
• 2011-2016 Ford F-350 Super Duty King Ranch 6.2L V8
• 2013-2016 Ford F-350 Super Duty Platinum 6.2L V8

Frequently Asked Questions

Does this fit the P473 F-350?
Yes, this is a direct fit for the 2011-2016 Ford F-350 equipped with the Boss 6.2L engine.

Are the iridium spark plugs pre-gapped for this application?
Yes, they arrive pre-gapped to factory specifications, though verifying clearance with a feeler gauge prior to torquing is recommended practice.

The Ford Heavy-Duty Workhorse Standard

Built for the punishing duty cycles of the P473 chassis, this secondary ignition setup provides the electrical stability required for fifth-wheel towing, high-temperature job sites, and maximum payload operations.