Boat Engine Water Pump Impeller 389576 0389576 18-3091 for Johnson Evinrude OMC BRP 4HP 4.5HP 5HP 6HP 8HP 2-Stroke Outboard Motor Number of Blades: 6, Brass Hub Height: 17.55mm External Impeller Overall Diameter: 38.08mm Internal Shaft Insert Diameter: 11mm Net Weight: 34g A External Impeller Overall Diameter: 38.08 mm B Height: 17.55 mm C Internal Shaft Insert Diameter : 11 mm Number of Blades: 6 Net Weight: 34 g Brass Hub Condition: New All parts are available in stock, we can ship it out within 1-2 business days!