This 3 pc NGK 3133 Standard Spark Plug kit replaces Champion Spark Plug 932M, Champion Spark Plug 938M, Champion Spark Plug 939M, Champion Spark Plug QL78YC, Champion Spark Plug QL78YC6, Champion Spark Plug QL82YC, Mercury Marine 33-14814Q, OEM parts and is perfect for replacement or a performance upgrade.