NGK NGK Ruthenium HX One-Step-Colder Spark Plugs, LTR7BHX (Stock #95605), Set of 6
Fits 2011-2026 2.7L EcoBoost · 3.5L EcoBoost · Raptor
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Spark plugs ignite the fuel-air mixture in each cylinder; a colder plug pulls heat out of the combustion chamber faster than stock, helping prevent knock (pre-ignition) when an engine is making more power than stock.
why this one — A set of 6 plugs (matching a V6 EcoBoost) stepped one heat range colder than stock - a common, affordable safety pairing when you add a tune or other power upgrades.
Prevents misfires under raised boost; gap per tuner spec.
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