The NGK 5139 Multi-Ground Spark Plug JR8C is designed to meet specific manufacturer ignition requirements while improving ignition performance. Its multi-ground electrodes minimize sensitivity to increased voltage demands caused by gap growth, ensuring consistent and reliable ignition. Retaining all the features of NGK's standard plugs, this spark plug includes corrugated ribs to prevent flashover and a pure alumina silicate ceramic insulator, providing superior strength and efficient heat transfer. The copper core facilitates effective heat dissipation, while triple seals prevent leakage, maintaining peak performance and reliability. Engineered for durability and optimal engine function, the NGK 5139 Multi-Ground Spark Plug JR8C is an excellent choice for enhancing ignition performance in a variety of applications.

Part number: JR8C