Iridium Power Spark Plug

The Denso Iridium Power spark plug is designed for enhanced engine performance, featuring the world's smallest 0.4mm iridium center electrode. This fine-wire design reduces the required voltage for ignition, leading to improved firing performance. The patented 360-degree laser welding assembly process ensures exceptional durability, allowing the plug to withstand extreme conditions and temperatures exceeding 4000 degrees Fahrenheit. Its burnished nickel plating offers superior resistance to high temperatures and corrosion, ensuring long-lasting performance. The five-rib insulator design prevents flashover, and a copper-glass seal bonds the center electrode and insulator for a gas-tight seal. The machine-rolled threads prevent seizing or cross-threading during installation and removal. Each plug is 100% pre-fired to ensure the highest quality. This Iridium Power spark plug has a manufacturer heat range of 16, a 1.04-inch reach, and a 14mm thread diameter. It requires a 5/8-inch (16mm) spark plug socket for installation and is a resistor-type plug. Denso states a longevity of approximately 30,000 miles for this spark plug. It is compatible with a wide range of vehicles, including classic and collector cars, offering versatility and reliability for thousands of applications.