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  Utilizing decades of experience developing the world’s leading spark plugs, the Iridium TT draws from the best features of the DENSO family of spark plugs, giving you more power in a more versatile plug.
   

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  Engineered with the smallest tip in the market, the DENSO Iridium TT spark plug delivers more complete combustion, giving you superior fuel economy over any other plug.

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  Unparalleled, the Iridium TT is designed to last beyond 100,000 miles – providing coverage for most makes and models on the road today.

The Iridium TT Twin Tip Technology delivers far less obstruction to the spark allowing an omni-directional explosion. This minimizes the quenching effect and results in a more effective, more complete combustion. Better combustion means more power and better fuel economy, as fuel is burned more efficiently with each piston firing. The large center and ground electrodes seen on a Standard Plug increases “quenching” of the explosion, meaning the spark explosion is restricted by the electrodes above and below the gap, allowing it to spread to either side, but not grow with full range.

For complete combustion, the Iridium TT’s two tips allow the spark plug to create the largest spark concentration and explosion, which translates into more power and superior fuel economy than any other plug.

With this unique design, there are literally two “tips”: a 0.4-millimeter Iridium center electrode, and a 0.7-millimeter Platinum ground electrode. DENSO’s patented Twin-Tip technology was first used on original equipment spark plugs for luxury and performance cars. Now, that technology is available to everyone.

The 0.4-millimeter center electrodehas a low required voltage and high ignitability, that means your vehicle experiences less interference to spark growth (quenching), fewer misfiresand significantly improved combustion, optimizing power outputand fuel economy – getting you farther with less gas.

Developed with DENSO’s ownoptimized Iridium alloy; this is thesmallest mass-produced center electrode available today.

DENSO selected Iridium and engineered it with Rhodium to build the most durable alloy for spark plugs. The patented formula has the highest concentration of Iridium of any spark plug and outperforms in the most severe engine temperatures resisting oxidation and voltage wear for over 100,000 miles.

To provide the best plug in the market, DENSO developed a proprietary 360-degree laser welding process : the result is the highest quality bond thatensures structural support for the Iridium center electrode, which resists wear and oxidation, even in the harshest combustion environments.

FEATURES

• • Titanium-enhanced alloy ground electrode
  • 1.1mm platinum center electrode
  • Minimum-quench electrode design

WHAT’S IN IT FOR YOU?

• • Improved fuel economy
  • Faster starts
  • Enhanced flame propagation for increased engine efficiency