Spark Plugs & Ignition
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Published
2026/06/16
About
Spark plugs in the heat ranges and reaches outboards and sterndrives actually call for, from NGK and Champion, plus Sierra ignition coils, points, condensers and tune-up kits for MerCruiser, OMC and Johnson/Evinrude. Plug part numbers are in the title; match them to the number on the plug you pulled, not the engine year alone.
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