NGK 5899 Laser Iridium Spark Plug - IZFR5J, 4 Pack

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 packageYou may also like 6 pc NGK 4757 Laser Iridium Spark Plugs for 7919 7953 9005 956M 956S 9809 QC10PEPB QC10WEP QC12PEP QC12PEPB QC8WEP Ignition Wire Secondary.