Description PRODUCT DETAIL: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 Cold-rolled threads to prevent cross-threading and damage to cylinder heads Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover Quantity: 1 per package
NGK 2983 Standard Spark Plugs
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