NGK R7440A-9L 3795 Spark Plug Racing R7440A9L

The NGK R7440A-9L 3795 Racing Spark Plug delivers race-ready ignition for high-performance engines. Engineered for optimum spark reliability, its 14mm diameter shell and precision heat range help maintain consistent combustion under demanding conditions. Ideal for competitive motorsports and tuned street setups, this plug features a robust center electrode and NGK’s proven insulator design to resist fouling and pre-ignition. Whether you’re dialing in a boosted setup or seeking repeatable starts, the R7440A-9L offers durable performance, quick throttle response, and long service life. Easy to install and compatible with a range of racing applications, this plug helps maximize horsepower while maintaining reliability across circuits and tracks.