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Champion RS12YC Copper Plus Marine Spark Plugs
Champion marine spark plugs are quality OEM replacements. The Champion RS12YC Spark Plug features a copper core electrode that provides 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 # 401
California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
Spark Plug, Mercury - Mercruiser 33-862029 Replaces: AC - MR43LTSAdd to Cart
Premium Delco EST 4Cyl Spark Plug Wire Set by Sierra For Mercruiser 3.0LX 4 cylinder engines with Delco EST ignition systems. Kit includes coil wire. Kevlar® core for maximum durability and...Add to Cart