DENSO Iridium Spark Plug, U-Style, heat range 10, Each, reach 19mm, Threaded, thread 14mm, IW31

DS-IW31

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DENSO Iridium Spark Plug, U-Style, heat range 10, Each, reach 19mm, Threaded, thread 14mm, IW31
  • Six times harder than platinum, iridium doesn't melt in temperatures up to 4,000 F
  • Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
  • 360 laser welding of electrode provides a seal that resists wear even in the worst conditions
  • Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center
  • Use NGK reference chart to order and stock these plugs
DENSO Iridium Spark Plug, U-Style, heat range 10, Each, reach 19mm, Threaded, thread 14mm, IW31 Metric Denso - K and G Cycles