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, AutoliteCopper Core spark plugs are designed to meet or exceed OES design requirements. Warrantied for 2 years. Consider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard. Autolite is an Official NASCAR Performance Partner. Package Dimensions: 1.00 x 1.00 x 3.38 inches Package Weight: 0.11 lb Package Quantity: 1 UPC: 009100006875 Center Electrode Core Material: Copper Center Electrode Design: Standard / Regular Center Electrode Tip Material: Nickel Drive Size: 5/8" Gap- Factory Preset: .060" IN Ground Electrode Tip Material: Nickel Insulator Material: Ceramic Insulator Type: Short Reach: .708" IN Resistor: Resistor Seat Style: Tapered Thread Size: 14x1.25 MM Country of Origin: US Remanufactured Part: N