Champion 344 Champion Copper Plus- Boxed - RC9YC

Copper core center electrode allows for accurate control of heat range for longer life. Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance. Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression. Built to ISO and SAE standards for proven performance. Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. Copper Plus - Dependable Performance.