Mercruiser: 12343, 12343B, 33-12343, 33-12343B, 33-816737B2, 33-816737Q, 33-8M0114745, 33-936C, 33-936S, 8M0114745; NGK Spark Plugs: 3823, 3823-10, BP8HS-10_x000D_
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OMC/Johnson/Evinrude: 0509569_x000D_
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Yamaha: BP8-HS100-00-00_x000D_
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Honda: BP8HS-10; Champion Spark Plugs: 936M, L78YC