The 4 Pack NGK V-Power COPPER Spark Plugs 7390 B K R 5 E Y are high-quality, vintage performance parts designed for gasoline engines. Made with durable copper material and manufactured in Japan, these spark plugs offer reliable ignition for your vehicle. With a voltage of 12V and the OE/OEM Part Number B K R 5 E Y, these NGK spark plugs are sure to enhance the performance of your car or truck.