3B2-65021-1 18-8920 Boat Engine Impeller for Nissan Tohatsu 6HP 8HP 9.8HP Outboard Motor Water Pump Number of Blades: 6 Height: 18.5 mm External Impeller Overall Diameter: 40mm Internal Shaft Insert Diameter: 11.5mm Brass Hub A External Impeller Overall Diameter: 40mm B Height: 18.5 mm C Internal Shaft Insert Diameter: 11.5mm Number of Blades: 6 Brass Hub