The NGK 7791 Racing Plug (R0409B-8) is expertly engineered to withstand the harshest engine conditions, making it ideal for high-performance racing applications. It features a special insulator nose configuration that enhances throttle response, while corrugated ribs prevent flashover. The pure alumina silicate ceramic insulator provides superior strength and excellent heat transfer. A copper core aids in effective heat removal, and triple seals ensure there is no leakage. This plug combines durability and performance, delivering the reliability needed for racing engines.

Part number: R0409B-8