• 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

The spark plugs within your INFINITI can be seen in a row on the side or top of your engine. When you first see one, your Spark Plug may look like a big, bizarre-looking screw. However, your Spark Plug plays a vital role in your car's driving ability. If a plug becomes so worn that it ceases operating efficiently, your INFINITI probably won't run.

The spark plugs in your INFINITI and the engine work to transform fuel into useable energy, enabling you to move your INFINITI down the road with ease. To do this, your Spark Plug generates an electrical spark, igniting the incredibly combustible fuel and air mixture in your vehicle's combustion chamber. This process creates the energy needed to get your car moving. With an impaired Spark Plug, the amount of power needed to spark the fuel and transform it into energy lessens, which can cause some pretty serious problems.

Spark plugs require routine servicing, just like filters, motor oil, and tires on your car. If these components not serviced routinely, you may begin to notice a few signs and symptoms. Potential signs of a bad Spark Plug include engine misfiring and knocking, reduced fuel efficiency, starting problems, spontaneous shut-offs, and acceleration issues. Each of these problems can hinder your car from driving and starting smoothly. A damaged Spark Plug can also cause potential issues with many other engine components.

When replacing a Spark Plug, we suggest that you refer to your owner's manual for recommended replacement periods. Most Spark Plug service intervals are required at 30,000 miles.

Doing a Spark Plug replacement at home can be done but can prove a little difficult since you might need to detach and remove ignition cables, plug wires, coils and other critical components. We recommend leaving this job to INFINITI professional technicians. However, if you choose to do the installation on your own, refer to your INFINITI owner's manual, make sure that your vehicle is parked on a smooth surface, and disengage the battery before beginning the installation.

Each vehicle type requires a specific Spark Plug created with certain materials. Give your engine what it needs to perform by exchanging an impaired Spark Plug with genuine OEM parts from INFINITI Parts.

This Spark Plug, part 22401JK01D, is compatible with INFINITI EX37 2013-2017, INFINITI FX37 2013, INFINITI G37 2008-2015, INFINITI G37X 2009-2013, INFINITI M37 2011-2019, INFINITI M56 2011-2019, INFINITI Q40 2014-2015, INFINITI Q50 2014-2015, INFINITI Q60 2014-2015, INFINITI Q70 2011-2019, or INFINITI QX70 2014-2017. Click on the What This Fits tab for more fitment details.