6H3-44352-00 697-44352-00 18-3069 Boat Motor Water Pump Impeller for Yamaha 40hp 50hp 55hp 60hp 70hp Outboard Engine Brand Name: SouthMarine, Sold by Marine Parts Manufacturer Plastic Hub Depth:18.56mm Outer impeller overall Diameter: 51.65mm Internal shaft insert Diameter : 18.54mm