• Helps your engine convert fuel into useable energy
• Engine misfires, poor fuel efficiency, difficulty accelerating, and random shut offs are signs of a worn spark plug
• Replacement is best done by a professional technician

Your INFINITI spark plugs are situated in a straight line along the top or side of your car's engine. When you first see it, a Spark Plug looks somewhat like a large, misshapen screw. In reality, your Spark Plug plays a vital role in your car's overall function. If a plug becomes so damaged that it ceases operating efficiently, your vehicle may no longer run.

Your INFINITI spark plugs work with your engine to transform regular fuel into actionable energy, enabling you to drive your INFINITI. To do this, your Spark Plug triggers an electrical spark, igniting the volatile combination of air and fuel in your INFINITI’s combustion chamber, creating the energy needed to get your car moving down the interstate. Without a properly functioning Spark Plug, the amount of force or power needed to spark your fuel and process it into energy diminishes, which can result in critical concerns.

A Spark Plug needs periodic inspection and servicing, similar to filters, motor oil, and tires on your INFINITI. If they are not cared for regularly, you may begin to notice quite a few issues. Signs of an impaired Spark Plug may involve misfiring of the engine and knocking decreased fuel efficiency, problems with starting your vehicle, spontaneous shut-offs, and problems with accelerating. Each of these problems can keep your INFINITI from working properly. An old Spark Plug can also compromise various other engine parts.

When it comes to replacing your Spark Plug, we suggest that you consult your car owner's manual for recommended replacement periods. Most Spark Plug service periods are advised at 30,000 miles.

Doing a Spark Plug replacement on your own isn't impossible but can prove slightly complicated as you may need to remove or disconnect car parts such as ignition cables, coils, wire plugs, and other vital INFINITI components. In effect, it's best to leave this work to experienced professionals. But if you do opt for doing the repairs yourself, consult your owner's manual, make sure that your car is parked on a flat surface, and disconnect your car battery before starting this process.

Each vehicle type requires a certain Spark Plug made from proper material(s). Give your INFINITI what it needs to perform by replacing an old or broken Spark Plug with authentic OEM parts from INFINITI Parts.

This Spark Plug, part 224015M014, is compatible with INFINITI FX35 2003-2008, INFINITI FX45 2003-2008, INFINITI G35 2003-2007, INFINITI I35 2002-2004, INFINITI M35 2006-2010, INFINITI M45 2003-2010, INFINITI Q45 2002-2006, INFINITI QX4 2001-2003, or INFINITI QX56 2004-2006. See the What This Fits tab for more information on fitment.

Fits FX35, FX45, G35, I30, I35, M35, M45, Q45, QX4, QX56