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The NGK Laser Iridium spark plug (box of four, GR8DI-12) is an OE-style iridium replacement that balances longevity and reliable starting. Its iridium-tipped center electrode offers a harder wear surface than platinum, while high-grade alumina ceramic and a copper core help manage heat for consistent ignition. A platinum pad on the ground electrode promotes even wear in distributorless ignition systems; recommended for vehicles using OE fine-wire iridium plugs.
NGK Laser Iridium Spark Plug Box of 4 (GR8DI-12)
