SouthMarine 47-89984 47-89984T4 47-80363 1T 47-F694065 47-30221 18-3017 Boat Engine Impeller for Mercury Mercruiser 75-225hp Outboard Motors External Impeller Overall Diameter: 59.60 mm/2.35 in Height: 33.60 mm/1.32 in Internal Shaft Insert Diameter :22.40 mm/0.88 in Number of Blades: 6, Brass Hub Net Weight: 95g