Spark plug is known as one of vehicle parts. It aims to discharge the pulse high voltage brought by high-tension wire, break down the air between electrodes, and ignite mixed gas by the generated spark. There is diverse of spark plugs at the market. Our 4pcs OEM Spark Plugs offered here is one of them. With premium material and sophisticated workmanship, they are safe and durable to use. Perfectly fit for automobile, it will perform perfectly as well!