NGK 94553 Iridium IX Spark Plug

The NGK 94553 Iridium IX spark plug delivers superior ignition performance and extended service life for a wide range of vehicles. Featuring a 0.6mm laser-welded fine iridium center electrode, this plug provides better spark consistency and requires less voltage to fire compared to conventional spark plugs.

Key Features:

• Fine iridium center electrode for improved throttle response and acceleration
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent flashover and improve ignition reliability
• High-grade alumina silicate ceramic insulator for superior strength and heat transfer
• Cold-rolled threads prevent cross-threading and damage to cylinder heads
• Triple gasket seal eliminates combustion gas leakage

NGK Iridium IX spark plugs offer better fuel efficiency, smoother idle, and quicker starts. The iridium construction allows the plug to last up to 4 times longer than standard copper plugs while maintaining consistent performance throughout its service life. Engineered to meet or exceed OE specifications for reliable operation in automotive, motorcycle, and marine applications.