Champion RN11YC4 Spark Plug, Stock No. 322

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Champion RN11YC4 Copper Plus Marine Spark Plug Champion marine spark plugs are quality OEM replacements. The Champion RN11YC4 Spark Plug features a copper core electrode that provi des increased conductivity and heat control for good overall wear. These marine spark plugs are designed to resist overheating under heavy engine loads. Built to ISO and SAE standards for proven performance. Champion Spark Plug # 322 Show more