Water Pump Impeller Kit For Johnson Evinrude OMC Outboards Replaces part # 763758, 778166, 391391, 382797 Package Includes: 1x Impeller, 1x Pump Housing, 1x Pump Cup, 1x Wear Plate, 1x Gasket, 1x Key, 1x Water Seal, 4x Bolt Fits 5.5 / 6 / 7.5 HP models from 1954-1979 Please Check The Compatibility List Below Fits: 5.5 HP Models - 1954-1979 With Plastic Pump Housing 6 HP Models - 1954-1979 With Plastic Pump Housing 7.5 HP Models - 1954-1958 With Plastic Pump Housing