Yamaha - Tube, Water - Cooling System Component - 682-44361-10-00

Overview

This is one of those parts that keeps your Yamaha from getting into trouble without you ever thinking about it. The water tube carries cooling water up from the lower unit into the powerhead, and if it’s not right, the whole system suffers. I’ve seen engines overheat just because this tube was slightly bent or not sealing properly. When it’s lined up and in good shape, water flow stays consistent and the engine runs exactly how it should.

Key Features

• Direct Cooling Water Transfer – Moves water efficiently from the lower unit to the engine.
• Genuine Yamaha Fitment – Matches factory routing and connection points for proper alignment.
• Supports Engine Cooling – Helps maintain steady water flow to regulate engine temperature.
• Alignment Stability – Ensures correct positioning within the cooling system during operation.
• Durable Marine Construction – Built to handle constant water exposure and engine vibration.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this water tube. Verify fitment based on your specific engine model.

FAQ

Q: What happens if the water tube is bent or damaged?
A: It can restrict water flow and lead to overheating or reduced cooling performance.

Q: Can this cause weak water pressure at the telltale?
A: Yes, improper alignment or blockage can reduce visible water flow.

Q: Is this replaced during water pump service?
A: It’s usually inspected and replaced if there’s damage or corrosion.

Q: Is installation difficult?
A: It requires careful alignment during reassembly but is manageable with experience.

Q: Does saltwater affect this part?
A: Over time, corrosion and buildup can impact performance if not maintained.