Yamaha 9.9/15HP 2/4T Outboard Water Pump Kit – Ref. 682-W0078 / 46-84277T / 18-3148

This maintenance kit, part number 682-W0078, is compatible with Yamaha 9.9 and 15 HP outboard motors (2-stroke and 4-stroke) and also carries OEM part numbers such as 46-84277T and 18-3148. Low-horsepower outboard motors are widely used on small fishing boats, inflatable boats, and as auxiliary engines, and require high reliability and portability. This maintenance kit typically includes a water pump and is essential for regular engine maintenance. Specifically designed for low-horsepower Yamaha outboard motors, this kit is made with high-quality materials to withstand high humidity and corrosion from salt spray. It typically contains wear parts such as the water pump impeller, seals, and oil seals. The water pump impeller is made of high-quality rubber that is resistant to oil, heat, and wear. The shape and size of its blades precisely match the manufacturer's specifications to ensure sufficient water flow. Seals prevent cooling water leaks and ensure stable water pressure. If your Yamaha 9.9 to 15 HP outboard motor is experiencing reduced coolant flow, overheating, alarms, or unusual noises from the water pump, it usually means the pump impeller is worn or damaged and needs to be replaced immediately. Using this 682-W0078 water pump service kit will restore efficient engine cooling, prevent power loss and mechanical damage from overheating, and ensure reliable operation of your low-horsepower outboard motor for extended periods, allowing you to enjoy fishing or boating.