Johnson/Evinrude Water Pump Kit | Sierra 18-3402 Lower gear case water pump repair kit for various Johnson & Evinrude outboards. Sierra water pump repair kit without housing Contains Sierra 18-3003 impeller, 18-3102 impeller plate, 18-2891 gasket, 18-3326 pin, 18-3329 grommet and 18-2023 oil seal Fits Johnson/Evinrude 10 hp outboards from 1958-63 Fits Johnson/Evinrude 9.5 hp outboards from 1964-74 Replaces Johnson/Evinrude 382296