This DENSO Iridium Spark Plug (part code X24ESR-U) is engineered for superior ignition performance and durability. Its advanced iridium construction ensures a hot, stable spark, leading to improved fuel efficiency and smoother engine operation. The precision-crafted electrode design minimizes voltage requirements, reducing strain on the ignition system and promoting consistent combustion. This makes it an ideal choice for drivers seeking dependable performance and longevity from their vehicle's ignition components. DENSO is a leading manufacturer known for its commitment to quality and innovation in automotive technology. Choosing this spark plug means investing in a part designed to meet stringent OEM standards and deliver exceptional results.