Impeller Johnson/Evinrude 8-15 HP – Efficient Cooling Pump for Small Engines

This impeller is intended for small 2-stroke Johnson/Evinrude engines of 8, 9.9, and 15 HP, manufactured around 1980 onward (including certain models with an extended “USA” leg). It serves as a direct replacement for the original part number 386084, meaning installation is straightforward and your engine’s cooling system will regain its factory efficiency. The impeller features 6 flexible blades made from a high-quality rubber polymer that retains its elasticity over time. This ensures a consistent flow of water through the engine – from slow trolling speeds to wide-open throttle.

A small Johnson/Evinrude motor is often used for auxiliary purposes (e.g., an inflatable tender for a yacht) or for fishing, where prolonged low-speed operation is common. This impeller keeps your engine reliably cooled under such conditions, preventing heat build-up and overheating that could cause damage. It is built to withstand typical marine challenges – saltwater, temperature fluctuations, and extended use. Replacing the impeller once each season is recommended to maintain optimal water pump performance. With this product, your small Johnson/Evinrude engines will run smoothly and safely on every outing.

• Applications: Ideal for small inflatables, fishing boats, and yacht tenders powered by Johnson/Evinrude 8-15 HP engines, where reliable cooling directly translates to extended engine life
• Compatibility: Fits popular models like the Johnson/Evinrude 9.9 HP (including U.S. variants) and 15 HP outboards widely used in the 80s and 90s – delivering original cooling performance
• Benefits: Having a functional impeller is critical during prolonged trolling (low RPM for fishing) – this impeller prevents your engine from running hot at idle or from overheating during quick bursts at full throttle
• Easy Replacement: The impeller’s compact size and precise build make it easy to replace even for DIY boaters. (Note: Gasket not included; reuse the existing gasket or purchase separately if needed.)
• On-Water Reliability: By proactively replacing the impeller, you ensure your small engine won’t let you down – cooling remains effective and you stay worry-free on the water