For reliable components at great prices, Zeigler Nissan Orland Park is your trusted source. Spark plugs are small but essential components that create the electrical spark needed to ignite the air-fuel mixture in your engine's combustion chambers. Each cylinder has its own spark plug that fires at precisely the right moment to keep your engine running smoothly. These components endure extreme temperatures, pressures, and electrical stress, making quality construction and proper specifications critical for engine performance.

How Spark Plugs Create Combustion

Spark plugs receive high-voltage electrical current from the ignition coils through their terminals. This electricity jumps across a small gap between the center and ground electrodes, creating a spark that ignites the compressed air-fuel mixture. The resulting combustion drives the piston downward, producing power. This process happens thousands of times per minute in each cylinder. The plug's heat range determines how quickly it dissipates heat, preventing pre-ignition while avoiding fouling. Your ignition system depends on spark plugs maintaining the correct gap and clean electrodes. The Versa and Altima require spark plugs matched precisely to their engine specifications for proper performance and fuel efficiency.

Why Spark Plugs Wear Out

Electrode erosion from repeated sparking gradually increases the gap beyond specifications, requiring higher voltage to fire and reducing ignition efficiency. Carbon deposits accumulate on electrodes from incomplete combustion, particularly during short trips or idling. Oil consumption can foul plugs, coating electrodes with residue that prevents proper sparking. Incorrect heat range causes either pre-ignition or fouling problems. Genuine Nissan spark plugs use electrode materials and heat ranges engineered specifically for your engine's requirements, unlike universal aftermarket alternatives.

When to Replace Spark Plugs

Follow your vehicle's maintenance schedule for spark plug replacement intervals, typically between 30,000 and 100,000 miles depending on plug type. Replace plugs immediately if you experience rough idling, hesitation during acceleration, or reduced fuel economy. Difficulty starting or engine misfires also indicate spark plug problems. We carry authentic Nissan spark plugs in the correct specifications for your specific engine.

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