福特锐界3.5/探险者/野马5.0 铱金火花塞 AYFS24N SP412 原厂级点火性能

If your Ford Edge 3.5, Explorer 3.5, or Mustang 5.0 shows rough idle, sluggish acceleration, obviously increased fuel consumption, or cold-start difficulties, this usually indicates worn original spark plugs with insufficient ignition energy, causing incomplete combustion. Under normal operation, this iridium spark plug provides stable strong ignition to ensure smooth engine power output and good fuel economy. This product fits Ford Edge 3.5 (2011-2014), Explorer 3.5 (2013-2019), Mustang 5.0 (2011-2014) and other models, with part number SP412 AYFS 24N. When installing, use a torque wrench to tighten to the specified torque (about 20-25 Nm) and ensure a spark plug gap of 0.044 inches (1.1 mm), to avoid over-tightening that damages the cylinder head or under-tightening causing leaks.