Iridium Tough®
Features and benefits:
- For long distance and heavy-use drivers.
By greatly minimizing electrode wear, DENSO improved mileage and extended the plug’s useful life. Longevity provides you with peace of mind and safety when using IRIDIUM TOUGH.
- For drivers that care about mileage.
If you use your car on a daily basis, you may be concerned about fuel consumption.
IRIDIUM TOUGH is one solution.
The iridium tip is mounted with an “All-around Laser Welding” method that insures high reliability and durability even under the most severe driving conditions.
- Highly Corrosion Resistant, Burnished Nickel Plating
The insulator housing is plated with burnished nickel the same as racing plugs, resulting in high corrosion resistance. (VKA and VKB excluded)
- Built-in, Highly Reliable Resistor
All specification types include an embedded, highly reliable, monolithic resistor to eliminate electromagnetic noise interference from all kinds of electronic devices.
- Platinum-tipped Ground Electrode
The ground electrode has a platinum tip, from DENSO’s experience with platinum plugs. This moderates electrode wear and insures high durability.
- Fine Diameter Ultra-fine Iridium Center Electrode
Using DENSO’s iridium alloy having a very high melting point, the tip of the center electrode can be shaped very thin and fine, reducing spark voltage requirements and greatly improving ignitability.