DENSO's Iridium TT Plugs are designed for long distance and heavy-use drivers who care about mileage and performance.
Engineered with a 0.4mm diameter iridium centre electrode and a 0.7mm platinum-tipped ground electrode; the Iridium TT delivers more complete combustion giving you superior fuel economy.
Our patented formula has the highest concentration of Iridium of any spark plug and performs in the most severe engine temperatures- resisting oxidation and voltage wear for over 100-000km
DENSO is a leading supplier of premium original equipment used by many automotive manufacturers.
Twin Tip (TT) for more complete combustion = superior fuel economy
Unparalleled endurance. Tested well beyond 100-000 km.
360-degree laser welding to resist wear in the harshest conditions.
Manufactured in Japan to the highest standards.