Specifications: Get More Response From Your Car. Smoother ride, reliable performance. ACDelco Spark Plugs boost your vehicle\'\'s performance. Long lasting performance, time and time again. Patented, one-piece insulator design. Withstands temperature pressure and vibration. Fits all makes and models. ACDelco Automotive Spark Plugs fit most passenger cars, trucks, commercial, marine and sport vehicles as well as small engines. A Preferred Performer. ACDelco Spark Plugs are used as Original Equipment on more vehicles than any other spark plug. Improved Corrosion Resistance. ACDelco Professional Platinum and RAPIDFIRE plugs are nickel plated to protect against corrosion and resist shock for extended reliability. The copper core electrode. Helps transfer heat, which is important for today\'\'s smaller hotter running engines. Longer life. When used in high energy ignition systems, ACDelco Spark Plugs can be expected to last a minimum of 30,000 miles. Longer up to 100,000 miles with ACDelco Extended Life Platinum Plugs. Variety ACDelco Spark Plugs are available in: Two pack blister. Eight pack sleeves. ACDelco\'\'s traditional packaging. Professional Platinum Design Channels More Energy Super ceramic insulator. Near diamond hard ceramic provides added strength, protection, shock resistance and insulation under today\'\'s high temperature operations. One piece integral suppressor seal Located close to the firing tip, it reduces radio frequency interference, meters spark energy for long electrode life and seals against compression leakage. Copper core center electrodes Improves heat dissipation and fouling resistance. Nickel and chrome alloy electrodes Resists wear from erosion and corrosion to promote long electrode life. Hot tip insulator Heats fast, fires hot to promote long electrode life.