Ignition Coil and Iridium Spark Plugs for Ford F-250 Super Duty (2011-2016) 6.2L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2011-2016 Ford F-250

What it Does: The Ignition Coil and Iridium Spark Plug Kit replaces degraded factory secondary ignition components on the 2011-2016 Ford F-250 to eliminate cylinder misfires, stabilize idle current, and restore combustion efficiency under heavy towing loads.

The Stock Ford F-250 Secondary Ignition Breakdown

Under heavy towing and sustained commercial use, the P473 platform Super Duty subjects its coil-on-plug modules to intense underhood thermal stress. Inside the 6.2L Boss V8 engine bay, the OEM ignition coil potting epoxy micro-fractures over time due to heat soak, allowing high-voltage secondary current to arc to ground rather than jumping the plug gap. Furthermore, standard factory plug electrodes suffer gap erosion from high-hour operation, which dramatically increases the electrical resistance required to ionize the mixture. This combination overworks the primary driver circuit, causing hesitant acceleration, elevated fuel consumption, and misfire codes such as P0300 through P0308.

The Engineering Solution

This comprehensive service kit pairs eight reinforced pencil ignition coils with fine-wire iridium spark plugs designed to withstand continuous thermal and mechanical stress. The replacement coils utilize high-grade copper primary and secondary windings insulated with premium thermoset dielectric epoxy to completely mitigate internal flashover. Heat-stabilized silicone boots seal against moisture intrusion and resist carbon tracking down the ceramic insulator. Complementing the coils, the fine-wire iridium core plugs require lower arc voltage to initiate flame-front propagation, ensuring a robust, quench-resistant burn under wide-open throttle. Replaces OE interchange references including UF631, DG526, and 5C1858.

Technical Specifications

Compatibility

• 2011-2016 Ford F-250 Super Duty XL 6.2L V8
• 2011-2016 Ford F-250 Super Duty XLT 6.2L V8
• 2011-2016 Ford F-250 Super Duty Lariat 6.2L V8
• 2011-2016 Ford F-250 Super Duty King Ranch 6.2L V8
• 2013-2016 Ford F-250 Super Duty Platinum 6.2L V8

Frequently Asked Questions

Does this fit the P473 F-250?
Yes, this is a direct fit for the 2011-2016 Ford F-250 equipped with the 6.2L Boss V8 engine.

Are these spark plugs pre-gapped for the 6.2L V8 application?
Yes, the iridium spark plugs arrive pre-gapped to factory specification, though checking each gap prior to torquing is recommended practice.

The Ford Super Duty Standard

Built to handle the harsh vibration and continuous high-load duty cycles expected of commercial platforms, this ignition set preserves primary circuit integrity and ensures clean, repeatable combustion under heavy towing conditions.