Denso® Iridium Long-Life Spark Plug 3491

Denso Iridium Long-Life™ Spark Plug are featured as follows:

• Manufactured to enhance the performance of the engine.
• Engineered with top-quality materials and equipment.
• Delivers dependable service without any problems.
• Engineered in conformity with strict industry regulations.
• Made for performance and durability.
• Designed using an Iridium alloy with a patent which is six times hardier than a typical one in addition to being eight times stronger compared to a conventional one made of platinum.
• Can accommodate temperatures above 4,000°F.
• Offers more horsepower, faster easier starts, fewer misfires under heavy loads, and better conservation of fuel at all times.
• Uses a new 360° laser-welding method.
• Fine wire iridium center electrode.

Denso Iridium Long-Life™ Spark Plug 3491 is an advanced, high performance vehicle part, developed using the best materials and equipment to enhance your engine's efficiency. It has been engineered to offer dependable and trouble-free service while following stringent industry norms. This spark plug is equipped with a fine-wire iridium center electrode, a platinum ground electrode and a 360- degree laser-welded spark tip that can withstand temperatures above 4,000°F. It was the first automotive plug to be made of iridium, a material even better than platinum-that is found in meteorites, and thus it is six times harder, eight times stronger and capable of temperatures that are 1200ºF hotter. Thanks to the Denso Iridium Long-Life™ Spark Plug a car gets extra horsepower; it starts more quickly and easily; there are less misfires under heavy loads; as well as providing better fuel economy at all times.

DENSO is the world's number one in automotive technology, providing leading vehicle manufacturers with high quality A/C compressors, oxygen sensors and other critical components. These products are designed to meet the most stringent OE requirements and have a never-before-seen performance and durability in the auto parts market. The devotion of DENSO through its creativity and excellence guarantees that their items attain more excellent performance, fuel efficiency and longevity thus being highly preferred by car manufacturers globally.