Boat Engine Water Pump Impeller 385072 18-3044 for Johnson Evinrude OMC BRP 2-Stroke 85HP 100HP 115HP 125HP Outboard Motor Number of Blades: 6, Brass Hub Height: 31.89mm External Impeller Overall Diameter: 88.75mm Internal Shaft Insert Diameter: 18.82mm Net Weight: 170g A External Impeller Overall Diameter: 88.75 mm B Height: 31.89 mm C Internal Shaft Insert Diameter : 18.82 mm Number of Blades: 6 Net Weight: 170 g Brass Hub