This DENSO Iridium spark plug, part code X24ES-U, is engineered to deliver superior ignition performance. Its advanced iridium construction provides exceptional durability and a high degree of thermal conductivity, leading to consistent spark plug operation. The design of the X24ES-U promotes efficient fuel combustion, contributing to improved engine responsiveness and fuel economy. It is built to withstand the demanding conditions of modern engines, offering long-lasting reliability. Choosing DENSO spark plugs means opting for quality and precision. The X24ES-U is a testament to their commitment to providing high-performance components that meet stringent automotive standards.