Description:

[Vehicle Fitment]: Compatible with Ford F-150 2009-2010 V8 4.6L/2007-2010 V8 5.4L, F-250 Super Duty 2008-2010 V8 5.4L, F-350 Super Duty 2008-2009 V8 5.4L, F-350 Super Duty 2010 V8 5.4L, Compatible with Mustang 2008-2010 V8 4.6L, Expedition 2008-2014 V8 5.4L, Explorer/Explorer Sport Trac 2008-2010 V8 4.6L; Compatible with Lincoln Navigator 2008-2014 V8 5.4L; Compatible with Mercury Mountaineer 2008-2010 V8 4.6L. [Reference Number]: FD509, 8L3E-12A366-AA, 0B244206, DG521, 8L3Z-12029-A, SP509, HJFS-24FP. [Iridium spark plug]: Iridium is a type of refined alloy which is highly suitable to be used as the materials of the central electrode in a spark plug. It extends the life of the spark plug nearly threefold, ensures a more stable idle speed of the engine, and delivers a super performance to the engine with improved fuel efficiency, reduced emissions and faster starting up..