Iridium IX 4055 Spark Plug - Model and type - Iridium IX 4055 Spark Plug - Iridium center electrode for durability and reliable ignition - What’s included - Includes original packaging and hardware - Direct replacement auto parts - Key benefits - Long service life due to iridium construction - Reliable ignition performance across engine speeds - Supports smooth idle and consistent throttle response - Designed for high-temperature operation with resistance to fouling - Function and compatibility - Provides the ignition spark needed for gasoline engines - Direct replacement for engines that specify the 4055 model - Fits without modification when used as a direct replacement part - Specifications and attributes - Model: 4055 - Material: Iridium center electrode - Type: Spark plug for automotive use - Packaging: Original packaging and hardware included - Use scenarios - Routine maintenance on a vehicle that requires the 4055 spark plug - Replacing worn plugs to restore consistent ignition and engine performance - Replacement during seasonal or climate-related maintenance to support reliable starts and idle - Practical notes - Fits as a direct replacement auto part when the 4055 specification is required - Maintains compatibility with engines designed for the Iridium IX 4055 model - Includes necessary hardware and packaging to simplify installation