These spark plugs dissipate heat faster than the stock plugs which reduces cylinder temperatures and prevents detonation/knock.

Ford recommended gap is 0.028 in (0.7 mm) - 0.031 in (0.8 mm)

Features:

• For use in engines with higher than stock cylinder combustion pressures
• One heat range colder than stock spark plug
• Sold in sets of 6
• Spark plugs gapped by manufacturer to 0.031-inch (0.8mm)

Applications:

2011 - 2020 F-150 3.5L Ecoboost
2017 - 2020 F-150 Raptor 3.5L Ecoboost
2015 - 2020 F-150 2.7L Ecoboost

SKU: M-12405-35T