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NGK Laser Iridium High Ignitability Spark Plug (SILZKFR8H7S) - Box of 4

$184.32

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NGK Laser Iridium High Ignitability Spark Plug (SILZKFR8H7S) - Box of 4

$184.32

$184.32

NGK Laser Iridium High Ignitability spark plugs are engineered to satisfy strict OE requirements, providing a precise balance of performance and long-term durability. These plugs feature an iridium-tipped center electrode—a material six times harder than platinum—paired with a raised platinum pad or fine wire tip on the ground electrode. This dual-precious-metal design ensures consistent spark performance and uniform wear, particularly in high-demand distributorless ignition systems.

Built for thermal efficiency and reliability, the SILZKFR8H7S utilizes a 98% pure copper core and high-grade alumina silicate ceramic insulators to facilitate rapid heat transfer and prevent overheating during heavy engine loads. The exterior is finished with trivalent metal plating, providing a specialized barrier against corrosion and seizing to ensure easier removal during your next service interval.

  • Part Number: SILZKFR8H7S
  • Quantity: Box of 4
  • Center Electrode: Laser-welded Iridium tip for maximum durability
  • Ground Electrode: Platinum-tipped for high ignitability and even wear
  • Insulator: Pure alumina silicate ceramic for superior strength and heat transfer
  • Construction: 98% pure copper core for enhanced heat removal
  • Sealing: Triple gasket seals prevent combustion gas leakage
  • Finish: Trivalent metal plating for anti-corrosion and anti-seizing properties

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