The Copper Plus Spark Plug (RN16YC5) is engineered for dependable performance and long-lasting durability. Featuring a copper core center electrode, it ensures superior conductivity and precise heat control, contributing to extended wear life. Its patented TinTac and ULTRASEAL coated shell provides exceptional resistance to corrosion, making it a reliable choice in various driving conditions. The inclusion of a SAC-9 semiconductor resistor minimizes EMI and RFI interference, ensuring smooth engine operation. Built to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with a wide range of vehicles. Whether you're seeking enhanced ignition efficiency or long-term reliability, this spark plug delivers excellent value and consistent results.

Product Features:

• Copper Plus - Dependable Performance.
• 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