2011-2017 F150 5.0L V8 NGK 6509 Iridium IX Spark Plugs (Set of 8) LTR6IX-11

Improved Spark with Higher Corrosion and Fouling Resistance

Maximizing the performance of your truck's 5.0L Coyote V8 engine means you'll need spark plugs that are up to the job. NGK is one of the top names in the aftermarket spark plug world and their Iridium IX series are some of the best-performing and most reliable spark plugs on the market. Each of these plugs are built to last, resisting corrosion all while delivering a clean, powerful spark for your truck's engine. The NGK Iridium IX spark plugs are an excellent choice for replacing OEM spark plugs and getting improve performance for your 2011 to 2017 F150 5.0L with a factory heat range.

High-Quality Iridium Tip and Corrosion-Resistant Design

The NGK Iridium IX spark plugs are named after their .6 mm laser-welded iridium tip that delivers a powerful arc while being highly resistant to corrosion and fouling. The insulator and electrode feature Trivalent metal plating that offers up vastly improved anti-seizure and anti-corrosion properties than traditional spark plugs. These plugs have a tapered electrode that reduces quenching while making regapping extremely simple.

Spark Plug Specifications:

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