NGK IZFR6K11 6994 Spark Plug Iridium

The NGK IZFR6K11 6994 Iridium spark plug is engineered for modern engines demanding high-reliability and efficient ignition. Featuring a durable iridium alloy center electrode and a fine wire design, it delivers consistent sparks at elevated temperatures with minimal electrode wear. The 14mm diameter ensures compatibility across a wide range of gasoline engines, improving starting performance, smoother idle, and quicker throttle response. Designed to resist fouling and withstand harsh conditions, this plug promotes clean combustion and longevity, reducing maintenance intervals and helping optimize fuel efficiency. Whether upgrading worn plugs or stocking spares, the IZFR6K11 6994 provides dependable performance, reduced misfires, and enhanced overall engine smoothness for everyday driving and light performance applications.