Johnson/Evinrude 20–35 HP Outboard Impeller

This replacement impeller brings new life to the cooling system of your Johnson/Evinrude 20–35 HP outboard. It matches OEM specifications to ensure a precise fit and efficient water circulation. Constructed of flexible neoprene rubber with a corrosion-resistant brass core, it’s engineered for longevity even in harsh marine conditions. For small boats powered by 20–35 HP engines – such as inflatables, fishing boats, or small RIBs – a reliable impeller is critical to prevent overheating during fishing trips or leisure cruises. As part of routine maintenance, replacing the impeller annually or every 100 operating hours is recommended to maintain optimal cooling performance.

• Use Cases: Ideal for Johnson/Evinrude 2-stroke outboards 20, 25, 30, 35 HP from the late 1970s to early 1990s. Ensures proper cooling for small vessels (approx. 3–5 m) powered by these engines, including dinghies, fishing boats, and inflatables.
• Reliability: Durable design restores water pump function to protect the engine from overheating and ensure optimal performance. Constructed with a flexible 6-blade rotor and brass insert for OEM-grade fit.
• Maintenance Tip: Replace this impeller every 12 months or ~100 engine hours to keep your outboard running cool. Regular replacement is especially important if operating in sandy or silty waters.
• Cross-Compatibility: Also compatible with certain Mercury outboards (20/25 HP late 1970s–1980s) that use Mercury part #47-888689, making it a versatile spare for mixed-brand fleets.
• Peace of Mind: This impeller meets or exceeds OEM performance, giving you confidence in your engine’s cooling system while out on the water.