• 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 are located in a straight line along either the side or top of your engine. When you first see one, a Spark Plug looks somewhat like a long, bizarre-looking screw. However, it plays a significant role in your vehicle's driving ability. If your Spark Plug becomes so damaged that it no longer functions efficiently, your vehicle may no longer run.

The spark plugs in your INFINITI work with your engine to turn fuel into useable energy, enabling you to enjoy a smooth start and journey in your INFINITI. So how does this happen? Your Spark Plug creates an electrical spark, igniting the incredibly volatile mixture of fuel and air in your combustion chamber, generating the energy needed to move your vehicle. With an impaired Spark Plug, the amount of force or power needed to ignite the fuel and convert it into actionable energy decreases, which can lead to significant concerns.

Spark plugs require periodic servicing and maintenance, just like motor oil and tire rotations on your INFINITI. If they are neglected for too long, you may begin to notice several signs and symptoms. Signs of an impaired Spark Plug are misfiring of the engine and knocking reduced fuel economy, starting problems, sudden immobilization, and acceleration issues. All of these issues can keep your INFINITI from starting and driving efficiently. Neglected spark plugs can also compromise many other engine components.

When replacing a Spark Plug, we suggest that you read over your car owner's manual for manufacturer recommended replacement periods. Many Spark Plug service intervals are suggested every 30,000 miles.

Installing your Spark Plug on your own is possible but can prove a little challenging as you may need to disassemble car parts such as ignition cables, coils, wire plugs, and other vital INFINITI components. We recommend leaving this work to professional technicians. Should you choose to do the replacement yourself, consult your INFINITI owner's manual, ensure that your vehicle is parked on a smooth surface, and detach your battery before starting this process.

Each vehicle needs a specific Spark Plug designed with the appropriate materials. Give your INFINITI what it needs to perform by trading an impaired Spark Plug with OEM components from INFINITI Parts.

This Spark Plug 224011LA1C fits INFINITI M37 2011-2019, INFINITI M56 2011-2019, INFINITI Q70 2011-2019, INFINITI QX56 2011-2020, or INFINITI QX80 2011-2020. Consult the What This Fits tab for additional fitment info.