NGK Spark Plugs - #6500 - CR6HSB

Trusted by more automotive, motorcycle, and marine engine manufacturers than nearly any other option, these standard spark plugs are engineered for dependable starting, consistent performance, and long-lasting reliability. A copper core and advanced electrode design help deliver efficient ignition and stable combustion across a wide range of operating conditions.

• Triple Gasket Seal – Helps prevent combustion gas leakage around the plug shell for improved sealing and performance.
  
• High-Purity Alumina Silicate Insulator – Provides excellent heat transfer strength and dependable electrical insulation.
  
• Solid Copper Core – Enhances conductivity and helps dissipate heat efficiently for reliable ignition performance.
  
• Corrugated Rib Design – Reduces the risk of flashover by improving insulation under demanding conditions.
  
• Cold-Rolled Threads – Helps protect cylinder head threads during installation and removal.
  
• Corrosion-Resistant Trivalent Plating – Silver chromate and zinc coating help resist rust and corrosion in harsh environments.