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NGK Laser Iridium spark plugs in a box of four deliver an iridium‑tipped center electrode and a fine‑wire design intended for OE or equivalent replacement. Marketed for high ignitability and longevity, they use a high‑grade alumina ceramic insulator and a copper core to aid heat removal, with trivalent plating to resist corrosion and triple seals to prevent leakage for reliable starts and even wear.
NGK Iridium Spark Plug Box of 4 (SILKGR9A7EG)
