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Denso Spark Plugs

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  • Patented Iridium Alloy
  • 0.7 mm Center Electrode versions
  • 360 degree Laser Welding


DENSO brings its vast knowledge as an OE supplier to provide spark plugs for a wide range of industrial and CO-GEN applications. Industrial Iridium Spark Plugs are engineered to withstand the high demands of Industrial Applications.

  • Iridium alloy, developed and patented by DENSO, offers a high melting point which dramatically improves wear resistance compared to other Iridium plugs.
  • With its patented Iridium alloy, DENSO was able to shrink the center electrode to 0.7mm, dramatically improving ignitability while maintaining longevity.
  • 360° laser welding is used to create a seal so reliable the electrode resists wear