NGK Copper Core Spark Plug TR6AP-13 TR6AP13 (5809)

The NGK Copper Core Spark Plug TR6AP-13 delivers reliable ignition and efficient heat transfer through a robust copper core. Designed for 14mm threads, its durable center electrode provides strong spark performance across a wide range of engines. Ideal for riders, small engines, and light-duty vehicles requiring consistent starts and improved combustion efficiency. The TR6AP-13 model combines NGK’s proven engineering with corrosion-resistant construction for long-lasting reliability in demanding conditions. Whether tuning for daily commuting or recreational use, this spark plug helps optimize throttle response, fuel efficiency, and smooth idle, while maintaining a solid, dependable spark in diverse operating environments.