NGK Standard Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The Spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This Spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a Solid tungsten core for greater spark, while providing superior heat dissipation and conductivity. It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head.