Quality, Reliability and Value. DENSO has taken the experience from being a world leading OE manufacturer and applied it to our aftermarket product lines. Every component that leaves the factories has been designed with precision, manufactured to OE standards and subjected to rigorous safety and performance tests.

• Unparalleled endurance. The iridium TT is the only spark plug tested well beyond 100,000 miles with zero loss to operformance.
• Economy - The TT Twin Tip technology delivers more complete combustion which translates to superior fuel economy.
• Superior ignitability of the DENSO Iridium TT means more efficient combustion, which yields better engine power and fuel economy.
• Additional tip on the ground electrode results in less obstruction of spark growth, while still maintaining the same gap.
• Titanium-enhanced alloy ground electrode and minimum-quench electrode design.