Champion Copper Core Plus N12YC Spark Plug

• Dependable and durable

• Built to ISO and SAE standards for proven performance

• Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression

• Copper core center electrode allows for accurate control of heat range for longer life

• TinTac and ULTRASEAL shell for best corrosion protection of any spark plug in the industry

• Features include a wider-base insulator which provides an easier path to speed the transfer of heat

• Longer insulator nose containing a center electrode of pure copper inside of chrome-nickel to transfer heat between firings and help resist fouling