The NGK SPARK PLUGS CR7EK 7546 is engineered for high performance and durability. Featuring a trivalent metal plating, this spark plug offers superior anti-corrosion and anti-seizing properties, extending the lifespan and maintaining reliable ignition over time. The pure alumina silicate ceramic insulator provides enhanced strength and efficient heat transfer, ensuring optimal engine performance under demanding conditions. Designed with triple seals, it effectively prevents leakage, while the corrugated ribs safeguard against flashover, making it suitable for various engine types. The copper core improves heat removal, contributing to stable combustion and consistent engine operation. Whether for automotive or small engine applications, this spark plug delivers dependable performance with advanced features aimed at maximizing engine efficiency and longevity. Features: * Trivalent metal plating for superior corrosion resistance and anti-seize properties * Pure alumina silicate ceramic insulator for strength and improved heat transfer * Triple seals to prevent leakage and ensure reliable operation * Corrugated ribs designed to prevent flashover and enhance safety * Copper core for effective heat removal and engine temperature regulation