A-Premium Double Iridium Spark Plug Compatible with Ford F-150 2004-2008, F-250/F-350 Super Duty Expedition 2005-2008 & Lincoln Navigator 2005-2008, Mark LT 2006-2008, 5.4L, Pack of 8
[Vehicle Fitment-1]: Compatible with Ford Expedition 2005-2007 V8 5.4L, Expedition 2008 V8 5.4L, compatible with F-150 2004-2007 V8 5.4L, compatible with F-150 2008 V8 5.4L, compatible with F-250 Super Duty 2005-2008 V8 5.4L, compatible with F-350 Super Duty 2007-2008 V8 5.4L, compatible with F-350 Super Duty 2005-2006 V8 5.4L; Compatible with Lincoln Mark LT 2006-2008 V8 5.4L, Navigator 2005-2008 V8 5.4L
[Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance
[Extensive Mileage Range]: For optimal engine performance and longevity, it is recommended to replace double iridium spark plugs at mileage intervals of 100,000 to 120,000 miles