2011-2020 F150 & Mustang 5.0L Ford Performance Cold Spark Plugs (Set of 8) M-12405-M50A

Highlights:

• Set of plugs for boosted 5.0L V8s
• Feature colder heat range and tighter gap
• Designed for Ford Performance superchargers
• Drop-in replacements for stock spark plugs
• Durable and reliable iridium tips
• .035" gap with 7 heat range
• Backed by a 2-year limited warranty

High-Performance Ford Performance Spark Plugs with Cold Heat Range

Supercharging the big, bad Coyote 5.0L V8 under the hood of your 2011-2020 F150 or 2011-2020 Mustang GT is a quick way to make huge power, but you may find that the stock spark plugs just aren't up to the task. The Ford Performance Cold Spark Plug Set comes with eight Ford Performance designed, iridium-tipped spark plugs that are a heat range colder than stock and gapped tighter to help prevent spark blowout when running superchargers, turbos, or nitrous systems. Ford Performance specifically designed these spark plugs for use with their own lineup of superchargers and came stock on the 2018 Cobra Jet Mustangs, but will also fit any F150 or Mustang equipped with a 5.0L Coyote V8. The colder heat range of the spark plugs makes them more effective with the large airflow and cooler cylinder temps caused by adding boost pressure, while their tighter gap helps prevent spark blowout so that your motor runs at its best, even when fitted with extremely powerful supercharger.

High-Quality, Drop-In Spark Plugs with Iridium Tips and Tight Gaps

Ford Performance carefully designed their Cold Spark Plugs to handle extremely powerful 5.0L V8 engine builds, even those equipped with extremely powerful supercharger systems. Each spark plug is this set features a standard OEM spark plug sizing with a 14mm thread and OE-style ceramic insulator to give you and your F150 or Mustang build a perfect, drop-in fitment in place of stock. The Ford Racing 5.0L Cold Spark plugs feature an iridium tip that gives them excellent reliability and a stable spark no matter home much boost pressure your F150 or Mustang is running. The electrodes are pre-gapped to a tight .035" that helps resist blow-out in high-boost applications so that your 5.0L doesn't suffer misfires or breakup when you punch the throttle. The Ford Performance Cold Spark Plugs install right into place of your 5.0L's stock spark plugs and come backed by a 2-year limited warranty from Ford Performance.

Fitment:

• 2011-2020 F150 5.0L
• 2011-2020 Mustang GT 5.0L

Spark Plug Specifications:

• Thread Size: 14mm
• Heat Range: 7
• Wrench Diameter: 5/8"
• Gap: 0.035"

For supercharged or boosted applications: these spark plugs are only recommended for use on supercharger, turbocharged, or nitrous-equipped vehicles that require a colder heat range and tighter spark plug gap than stock. They are not recommended for bone stock applications or vehicles solely equipped with basic bolt-ons and tuning.