The NGK Lawnmower Spark Plug BKR5ES is a high-quality component engineered with the latest technology to deliver optimal performance across the lawnmower�s entire rev range. It features a special nickel alloy electrode tip for superior heat resistance and durability, along with a state-of-the-art high alumina ceramic insulator that ensures reliable sparking. The copper-core central electrode efficiently dissipates heat to prevent overheating and fouling, while the solid, gas-tight construction and specially formulated bonding powders provide added strength and reliability. Developed through extensive research and testing, this spark plug is part of NGK�s range designed specifically for the horticultural market and is compatible with a wide variety of manufacturers.