NGK Laser Iridium Spark Plugs offer the best combination of performance and longevity. Iridium tipped center electrode provides durability six times harder than platinum. NGK's high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts.

• Tapered-cut ground electrode improves ignitability and reduces quenching
• 98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
• High-grade alumina silicate ceramic insulator for superior strength and heat transfer
• Iridium is six times more durable than platinum
• Quantity: 4 per package