Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed OES design requirements. Consider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard.

Product Features:

• Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
• Multi-rib insulator reduces danger of "flash-over"
• One-piece terminal post adds strength
• Resistor reduces radio frequency interference (RFI) and electrode erosion
• Over 100 Years of Engineering Experience: Autolite brings over a century of expertise to its Copper Core Spark Plugs, ensuring reliability and performance.
• Quick Starts and Smooth Acceleration: Designed to deliver quick engine starts and smooth acceleration for a better driving experience.
• Good Fuel Economy: Engineered to help improve fuel efficiency, making your vehicle more economical to run.
• Meets or Exceeds OES Design Requirements: Autolite Copper Core Spark Plugs are built to meet or surpass Original Equipment Service (OES) standards.