NGK 3672 pack of 4 spark plugs is a genuine OEM part made with nickel with V-groove tips. These plugs are for use with the following vehicles: Acura, Audi, BMW, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hyundai (not Kia), Infiniti (not Nissan), Isuzu (not Mazda), Jaguar (not Land Rover), Jeep (not Mitsubishi), Lexus (not Toyota), Lincoln. These plugs are not for use with Kia or Mazda. They are 8 ounces in weight and measure 2 inches in length. Tip material is nickel with V-Groove. For the best performance and results from your vehicle always use genuine OEM parts from the manufacturer. NGK is a world-renowned manufacturer of automotive parts and accessories so you can trust that these will be the highest quality and most accurate parts for your car or truck.