The NGK Spark Plugs IZFR6H11 Spark Plug - 4294 is a high-quality spark plug designed for use in a variety of vehicles. It is made by NGK, a trusted brand in the automotive industry known for their reliable and durable products. This spark plug is part of the Iridium IX series, which uses iridium for its center electrode, resulting in improved performance and longer life compared to traditional copper spark plugs. The IZFR6H11 model has a 14mm thread size and a 0.708 inch reach, making it compatible with a wide range of engines. It also features a trivalent metal plating for corrosion resistance and a triple gasket seal for a secure fit. This spark plug is designed to provide efficient and consistent ignition, helping to improve fuel efficiency and engine performance.