NGK BKR5EP-11 3440 Spark Plug Copper Core BKR5EP11

The NGK BKR5EP-11 3440 Spark Plug with a copper core delivers consistent ignition and efficient combustion across a wide range of gasoline engines. Engineered for reliable performance, this 14mm diameter plug uses a copper center electrode for rapid heat transfer and strong spark energy, helping reduce misfires and improve throttle response. The BKR5EP-11 is designed to withstand everyday driving conditions, offering robust corrosion resistance and durable construction. Its standard 14mm thread makes it compatible with many ignition systems, while its precise gap and resilient sealing ensure a tight seal and long service life. Ideal for maintenance and tune-ups, these plugs help maintain smooth idle, steady acceleration, and improved fuel economy when properly installed and gapped to manufacturer specs.