Motor flusher for outboard engines — suitable for engines from 15 HP Key benefits Protects the cooling system by flushing out salt, algae and chemicals that cause corrosion and blockages. Simple, reliable connection lets you rinse the engine with fresh water after saltwater use and before winter storage. Saves time and maintenance costs by preventing buildup that can reduce performance or require repairs. What it does Provides a flush connection that directs garden-hose fresh water through the engine cooling passages to remove deposits and contaminants. Uses sink pipes that clamp onto the side water inlet openings on the underwater part of the engine for a direct, effective rinse. Compatibility and function Suitable for outboard engines from 15 HP and up. Connects to a standard garden hose; no special adapters required beyond the included clamp-style sink pipes. Designed to flush the engine cooling system without disassembly. Easy to use Clamp the sink pipes onto the side water inlet openings on the underwater part of the engine. Attach a garden hose to the flush connection and run fresh water through the cooling system. Rinse until water runs clear and then disconnect. Practical applications After each trip in salt water: rinse your engine to remove salt and biological growth before it hardens or corrodes components. Before winter storage: flush out chemicals and deposits to reduce corrosion and protect seals during long idle periods. Routine maintenance between seasons: use as part of scheduled engine care to help maintain cooling performance and prolong engine life. Why customers choose this solution Direct connection to the engine’s water inlet provides a more thorough flush than external spray methods. Simple clamping installation means quick setup at the dock or at home without tools or engine removal. Focused on function and protection: specifically designed to clear the cooling system of salt, algae and chemical residues. What you need to know Intended for engines from 15 HP and larger. Attaches to the side water inlet openings on the underwater portion of the engine. Uses a garden hose as the water supply for flushing. Quick checklist before use Confirm engine is 15 HP or larger. Securely clamp the sink pipes to the side water inlet openings. Connect a garden hose and run fresh water until the cooling system is clear. This motor flusher is a practical, easy-to-use tool for protecting outboard engine cooling systems from salt, algae and chemical damage.