NGK Iridium IX spark plugs provide unsurpassed
performance in auto/light truck and powersports applications.
The iridium alloy electrode is extremely durable to heat, corrosion
and electrical wear. The fine wire electrode reduces the amount
of energy required to create a spark while providing increased
ignition efficiency and superior ignitability. The center electrode
of Iridium IX spark plugs has an extra anti-fouling mechanism.
A thermo edge between the center electrode and the insulator nose
provides a gap for a secondary micro-discharge to jump and initiate
a self-cleaning process.