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DENSO Spark Plugs

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. Designed for durability under the most extreme conditions, DENSO's patented Iridium alloy is six times harder and eight times stronger than conventional platinum and can handle temperatures in excess of 4,000F.

The U-Groove is Engineered for Greater Fuel Efficiency

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.

Double-Platinum Technology Maximizes the Effective Operating Life of your Spark Plug

sparkplug

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.

Spark Plug Types:

  • U-GROOVE - Ground electrode.
  • DOUBLE PLATINUM - Platinum center electrode. Platinum ground electrode.
  • IRIDIUM LONG LIFE - Platinum ground electrode. 0.7mm diameter Iridium center electrode.

Features:

  • 100% PRE-FIRED - All DENSO spark plugs are 100% pre-fired to assure 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.

Visit the DENSO Iridium Power Performance Website.