This DENSO Iridium Spark Plug, part code SKJ20DR-M11, is engineered for superior ignition performance and durability. Featuring a fine-wire iridium center electrode, it ensures a strong spark and consistent combustion, leading to improved fuel efficiency and reduced emissions. The unique U-groove ground electrode design further enhances ignitability and prevents fouling. Designed to meet the demanding requirements of modern engines, this spark plug offers extended service life and reliable operation under various driving conditions. It is a direct fit for compatible vehicles, ensuring a straightforward installation process.