Champion 401 RS12YC Spark Plug

Features a copper core electrode that provides increased conductivity and heat control for good overall wear. These marine spark plugs are designed to resist overheating under heavy engine loads.

• Copper Plus for dependable performance
• Copper core electrode allows for accurate control of heat range for longer life
• Patented SAC-9 semiconductor for maximum EMI & RFI suppression.
• Champion Spark Plug # 401
• Sold Individually