The Tohatsu STD Fuel Water Separator Kit 9999937851M provides essential protection for your outboard engine’s critical fuel system components. This complete separator system removes an impressive 98% of emulsified water from your fuel supply, preventing moisture-related damage to sensitive parts including electric fuel feed pumps, fuel injection systems, and carburetors. Water contamination causes poor performance, difficult starting, corrosion, and potentially expensive repairs, making this separator a wise investment in engine protection.

The kit includes a 10-micron filter that captures both water and particulate contaminants while maintaining proper fuel flow. The separator works through density separation, causing water droplets to collect in the bottom bowl while clean fuel flows to your engine. Rated for 90 gallons per hour, this unit handles fuel flow requirements across a wide range of outboard sizes without restricting delivery or causing performance issues.

Installation between your fuel tank and engine is straightforward, and the compact design fits easily in most engine compartments or under consoles. Regular inspection of the collection bowl and periodic filter replacement using genuine Tohatsu replacement filters maintain optimal protection. The durable construction withstands the harsh marine environment, providing reliable service season after season.

This separator is the perfect choice for boaters who want proven fuel system protection at a value price. Northeast Marine stocks both the complete 9999937851M kit and replacement filters to keep your Tohatsu outboard protected from fuel contamination and water damage.