47-42038 47-42038-2 47-42038Q02 18-3062 Boat Motor Impeller for Mercury mariner 6HP 8HP 9.9HP 15HP outboard motor parts Number of Blades: 6 Height: 11.54mm External Impeller Overall Diameter: 58.66mm Internal Shaft Insert Diameter: 12.68mm Net Weight: 11g