Tohatsu 9.9-18 HP Outboard Impeller – Premium 8-Blade Impeller (CEF 500383)

This replacement impeller is specifically made for the smallest Tohatsu outboards (9.9 HP, 15 HP, 18 HP), covering both classic 2-stroke and newer 4-stroke models. Small engines like these often power inflatable dinghies, tenders, or small fishing boats, where reliable cooling is especially important during low-speed operation or idling. The 8-blade impeller provides smooth and consistent water flow even when the engine is running slowly, which maintains proper temperature during trolling or maneuvering.

As an OEM-equivalent, this impeller installs easily and fits perfectly into the pump housing. The CEF 500383 is made of tough yet flexible rubber that resists abrasives like sand and silt – often encountered in shallow waters. Replacing a worn impeller with this new one ensures your motor circulates enough cooling water to avoid overheating. It’s advisable to check and replace the impeller each year, since in small engines even a slightly damaged impeller can lead to cooling issues.

• For the Smallest Motors: Tailored for compact Tohatsu 9.9–18 HP engines, often used on dinghies, auxiliary boats, and small fishing vessels where dependable cooling is a must.
• Smooth Water Flow: 8-blade design provides efficient pumping even at low RPM or idle, protecting the engine during slow operations.
• Easy Installation: Precisely fitting, this impeller swaps out quickly during routine maintenance and immediately restores cooling efficiency.
• Tough & Flexible: Stands up to operation in muddy or sandy waters, maintaining performance when running in shallows or beaching.
• Engine Protection: Prevents common small-engine issues with overheating during hot weather or heavy loads by ensuring continuous water circulation.
• Spare Onboard: It’s recommended to carry a spare impeller for long trips – replacing it quickly at the first sign of a weak water stream ensures your engine remains reliable.