Ngk Spark Plug Stock # 6422

Ngk Standard Spark Plugs Are Treated With Corrosion Resistant Plating To Ensure Ease Of Installation And Removal. The 98% Pure Copper Core Delivers Increased Heat Dissipation For More Reliable Starts And Reduced Risk Of Overheating. Cold-Rolled Threads Prevent Cross-Threading And Damage To Cylinder Heads. Trivalent Plating Eliminates Need For Anti-Seize. Corrugated Ribs Prevent Flashover. High-Grade Alumina Silicate Ceramic. Resistor Value 5K Ohm.