SouthMarine Boat Motor 19210-ZW1-B04 19210-ZW1-B02&nbsp;19210-ZW1-B03 18-3250 impeller for honda 4-Stroke Outboard Motors Brand Name: SouthMarine, Sold by Marine Parts Manufacturer Height: 31.00mm External Impeller Overall Diameter: 87.42mm Internal Shaft Insert Diameter: 23.36mm Number of Blades: 6, Material: Neoprene, Net Weight: 63g A External Impeller Overall Diameter: 87.42mm B Height: 31.00mm C Internal Shaft Insert Diameter: 23.36mm Number of Blades: 6 Material: Neoprene Net Weight: 63g