NGK 6988 Iridium IX Spark Plug

The NGK 6988 Iridium IX spark plug delivers superior performance and extended service life through advanced iridium technology. Designed for demanding automotive applications, this plug features a laser-welded iridium center electrode that's just 0.6mm in diameter—25% smaller than traditional platinum plugs—ensuring more concentrated spark energy and improved combustion efficiency.

Key Features:

• Ultra-fine 0.6mm iridium center electrode for superior ignitability and throttle response
• Tapered ground electrode reduces quenching effect and improves flame kernel growth
• Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties
• High-grade alumina silicate ceramic insulator ensures superior heat dissipation
• Triple gasket sealing process eliminates combustion gas leakage
• Corrugated ribs on insulator prevent flashover and misfires

NGK Iridium IX plugs offer improved fuel efficiency, smoother acceleration, and reduced emissions compared to conventional spark plugs. The iridium construction allows the plug to maintain precise gap specifications throughout its service life, ensuring consistent performance. As an OE supplier to major automotive manufacturers, NGK maintains strict quality standards and proven durability across automotive, motorcycle, and marine applications.