Water Pump Impeller 345-65021-0 47-16154-1 345-65021-0M 18-8923 for Tohatsu Nissan 25HP 30HP 35HP 40HP outboard motors SHIP Number of Blades: 6 Height: 20mm External Impeller Overall Diameter: 44mm Internal Shaft Insert Diameter: 17mm Net Weight: 11g, Plastic Hub A External Impeller Overall Diameter: 44mm B Height: 20mm C Internal Shaft Insert Diameter: 17mm Number of Blades: 6 Net Weight: 11g Plastic Hub