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The NGK Iridium Long Life spark plug delivers OE-grade ignitability and extended service life with a fine iridium center electrode and raised platinum ground tip for even wear. High-grade alumina ceramic and a 98% copper core help prevent overheating while ensuring reliable starts. Trivalent plating and triple seals resist corrosion and leakage, making this four-plug set a durable OE replacement.
NGK Iridium Long Life Spark Plugs Box of 4 (SILZKR6B11)
