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  • power-text
    The Iridium TT’s revolutionary 0.4 millimeter center electrode means significantly improved combustion and fewer misfires – optimizing power output like never before.

     

 

 

 

 

 

  • economy-text
    Invented by DENSO, the Iridium TT
    Twin-Tip Technology enables larger spark concentration and explosion, delivering more complete combustion, which translates to more superior
    fuel economy.

 

 

 

  • endurance-text
    The unparalleled Iridium TT spark plug is tested to last well beyond 100,000 miles, with minimal loss to performance, contributing to more overall lifetime savings than any plugs available today.

 

 

 

 

 

 

 

 

TWIN-TIP TECHNOLOGY

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.

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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.


0.4-Millimeter Center Electrode

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

Developed with DENSO’s own optimized Iridium alloy; this is the smallest mass-produced center electrode available today.



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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.

Iridium-element
A member of the platinum family, Iridium is the most corrosion-resistant metal known on earth.

360-Degree Laser Welding

Precision welding by DENSO’s state-of-the-art 360-degree laser welding technology allows the Iridium TT’s twin tips to deliver omni-directional ignition, contrary to the flat “sandwich” ignition offered by other spark plugs in the market. The superior ignition of the Iridium TT means each spark burns the fuel more efficiently, giving your vehicle more power and better fuel economy.
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To provide the best plug in the market, DENSO developed a proprietary 360-degree laser welding process : the result is the highest quality bond that ensures structural support for the Iridium center electrode, which resists wear and oxidation, even in the harshest combustion environments.

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The Original Twin-Tip

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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


 

 

 

 

 

 

 

 

A TRADITION OF INNOVATION

Quality, Reliability and Value. At DENSO we’ve taken everything we have learned as an OE manufacturer and applied it to our aftermarket product lines. Every component that leaves our factories has been designed with precision, manufactured to OE standards and subjected to rigorous safety and performance tests.

At DENSO, we’re constantly striving to break new ground with innovative solutions for today’s demanding automotive needs. All of our aftermarket products are built to OE-standards and incorporate the latest upgrades —
a promise only an OE manufacturer can make.

DENSO products are manufactured to give you the right part and the right fit … the first time, every time.

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DENSO Auto Parts shared College of Engineering, Cal State Long Beach's photo.
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The key to my heart is the key to this car... https://t.co/mStYkI0Q0r 1 8
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Timeline Photos The key to my heart is the key to this car...
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Did you know that over 21 years in 1996 DENSO developed the auto industry’s first compact stick-type ignition coil?… https://t.co/BzbZkZYc85 2 6
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Timeline Photos Did you know that over 21 years in 1996 DENSO developed the auto industry’s first compact stick-type ignition coil?
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NHRA Watch all the #DENSOpowered action!
RACEDAY action from the #SummitNats is on FS1 NOW! #NHRAonFOX

Want more NHRA? After the the show you can catch a full replay of the #SummitNats tonight at 10p ET on FS2 & FOXSportsGO.com!
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Photos from DENSO Auto Parts's post It's a #DENSOpowered Prostock final: Matt Smith Racing, Greg Anderson & Bo Butner Racing.
DENSO Auto Parts added 3 new photos — at Summit Motorsports Park.
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Timeline Photos Being No. 1 qualifier gets you the Green Hat AND some of that famous Summit Motorsports Park ice cream! Greg Anderson
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#DENSOpowered Matt Smith CRUSHES the field and will start tomorrow as the No. 1 qualifier. #pro2racing
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Timeline Photos It's a beautiful day for racing in Norwalk, Ohio!
DENSO Auto Parts at Summit Motorsports Park.
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Timeline Photos Clay Millican doing work at the Great Clips autograph session here in Norwalk. If you're at the track- come on by!
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Clay Millican WATCH now!!! Thanks for the mention, Clay! We are honored to work with you and Safe Kids Worldwide, B.R.A.K.E.S. Congrats on your win!
FINALLY!!!
DENSO Auto Parts shared Clay Millican's live video.
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Dare we mention that summer is around the corner and it's road trip season? #RoadTrip https://t.co/3viiZ1NNvE 2 8
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Timeline Photos Dare we mention that summer is around the corner and it's road trip season? #MaintenanceMonday
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Stringer Performance Congrats, Clay!!!
Winner, Winner!! Clay Millican FINALLY gets his first NHRA win!!
Look for more pictures of the University of Northwestern Ohio Parts Plus Great Clips team in the Winner's Circle and celebrating! #ThunderValleyNats #ItsGonnaBeGreat #PowPow #StompOnThatLoudPedal
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Timeline Photos Father's Day from the Bristol Dragway with Summit Racing Equipment Jason Line!
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Timeline Photos Happy Father's Day to the dads making moments in to memories.
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Happy Father's Day to the dads making moments in to memories. https://t.co/PxZ5RqoUve 0 0
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NHRA Pro Stock rookie Tanner Gray to graduate high school during Bristol pre-race https://t.co/NWOj6UGY0E via @FoxSports 0 1
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Timeline Photos Bo Butner Racing= Quickest pass of Q3! Showing off his DENSO decal. #DENSOpowered
DENSO Auto Parts at Bristol Dragway.
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The Anderson Boys kicking off Father's Day weekend in Bristol, TN. #TeamDENSO #DENSOpowered #ProStock… https://t.co/ylL2bHSXc4 0 5
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Timeline Photos The Anderson Boys kicking off Father's Day weekend in Bristol, TN. #TeamDENSO.
DENSO Auto Parts at Bristol Dragway.
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Timeline Photos There's just something special about it #ThrowbackThursday
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Timeline Photos A world-first way of thinking. Better combustion. Cleaner driving.
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Photos from DENSO Auto Parts's post Congratulations Timothy Fletcher on your Super Stock win at the Mello Yello #Summernats in Englishtown #DENSOPowered.
DENSO Auto Parts added 2 new photos — at Old Bridge Township Raceway Park.
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Timeline Photos #DensoPowered Bo Butner will wear his 3rd Green Hat of the season and start tomorrow in the No. 1 spot at the Old Bridge Township Raceway Park.

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