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The DENSO Iridium TT Spark Plug, part number XUH20TTI, represents a significant advancement in ignition technology. Designed with a unique Iridium TT electrode, it offers enhanced durability and a more powerful spark compared to conventional spark plugs. This spark plug is built to meet the demanding requirements of modern engines, ensuring optimal combustion and fuel efficiency. Its advanced design contributes to smoother engine operation and improved throttle response. Choosing DENSO Iridium TT spark plugs means investing in reliability and performance. They are manufactured to the highest standards, providing a dependable ignition source for your vehicle.