WATER PUMP / IMPELLER. BF75(7.5HP) A-B-C-D-E-F (with a flat part on the driveshaft, if your shaft has a keywaythis is not the righ t impeller for your outboard ). BF100(10HP)A-B-C-D-E-F (with a flat part on the driveshaft, if your shaft has a keyway thisnot the right impeller for your outboard ).
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