General description A direct replacement for the old and broken water pump impeller, this product is designed for the Johnson Evinrude OMC 9.5/10 HP outboard motor. Made of durable copper and rubber, it ensures long-lasting performance and helps prevent unnecessary leaks. Technical specifications Condition: 100% New Item Type: Water Pump Impeller Color: Black and Gold Material: Copper + Rubber OEM Reference Numbers: 377178, 775519, 18-300 Number of Blades: 6 Pieces Outer Impeller Total Diameter: Approx. 69mm / 2.72 inch Inner Shaft Insert Diameter: Approx. 14.1mm / 0.56 inch Compatibility and accessories Fits for Johnson Evinrude OMC 9.5 HP Outboard Motor (1964-1973) Fits for Johnson Evinrude OMC 10 HP Outboard Motor (1958-1963) Fits for Sierra Outboard Motor, Motor Part Number: 18-3003 Package Included: 1 x Water Pump Impeller Installation Easy to use and quick to install, this water pump impeller does not take much time to replace, making it very convenient.