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Spark Plugs

DENSO offers a full line up of spark plugs for every need..

Features of all DENSO spark plugs:

  • 100% PRE-FIRED — Assures the highest quality possible.
  • COPPER-GLASS SEAL — Bonds the center electrode and insulator together for a gas-tight seal. Maintains proper heat and excludes hot combustion gases.
  • FIVE-RIB DESIGN — Prevents flashover and decreases voltage loss.
  • PURIFIED ALUMINA POWDER INSULATOR — Provides exceptional dielectric strength and thermal conductivity allowing the material to stand up to extreme stress.

The Original U-Groove

DENSO's patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the U shape. The ball of fire created in the U-Groove develops a larger and hotter flash front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures.

Platinum TT (NEW)!

DENSO's revolutionary Twin Tip design introduces the idea that two tips are better than one. The additional tip on the ground electrode means better ignitability for a more powerful and fuel-efficient combustion, yielding better engine performance in terms of power and fuel economy. Better mileage, more power and faster starts, all while reducing carbon emissions.

Click here www.densott.com for more information on the Platinum TT spark plug.

Spark Plug Image

Double Platinum

DENSO pioneered the use of platinum in spark plug manufacturing. To maximize the longevity and enhance the durability of the spark plug, DENSO applied platinum to both the center and ground electrodes. Platinum offers superior resistance to erosion and corrosion enabling DENSO to create a spark plug capable of consistent, extended operation in excess of 60,000 miles.

Iridium Long Life

DENSO's Iridium Long Life plug is fast becoming the standard for today's high-tech engines. The properties of DENSO's patented iridium alloy have broken through the spark plug technology barrier. Employing a revolutionary new 360° laser-welding process, DENSO has created a spark plug unlike anything on the market today.

Iridium Power®

This high-performance spark plug has the world’s smallest iridium center electrode that is a mere 0.4mm in diameter. The tip of the ground electrode is taper cut which reduces quenching and improves firing performance. This combination of DENSO technology provides improved horsepower, acceleration and fuel economy.

For more information about DENSO Iridium Power spark plugs, go to www.densoiridium.com.

Iridium Racing®

DENSO Iridium Racing plugs are the ultimate in high-performance spark plugs with reliability and durability borne out of racing results and trusted by racers.

Using the same ultra-fine 0.4mm iridium center electrode, the Iridium Racing plug incorporates features that are ideal for the racing environment.

For more information about DENSO Iridium Racing spark plugs, go to www.densoiridium.com.