Yamaha - Water Tube - Cooling System Delivery Component - 61A-44361-20-00

Overview

This is one of those parts you don’t see, but your engine depends on every second it’s running. The water tube carries cooling water from the lower unit up into the powerhead, keeping everything at the right temperature. If it gets bent, clogged, or corroded, you’ll start running into cooling issues fast. It’s a simple piece, but when it’s right, your whole cooling system works the way it should.

Key Features

• Direct Water Delivery Path – Channels cooling water from the lower unit to the engine block efficiently.

• Consistent Cooling Flow – Helps maintain steady water movement for proper engine temperature control.

• Corrosion-Resistant Construction – Built to handle constant exposure to water in marine environments.

• OEM Precision Fit – Designed to align correctly within the midsection for proper installation and sealing.

Engine & Boat Compatibility

Compatible with select Yamaha outboard engines. Always verify fitment using your engine model and specifications before installation.

FAQ

Q: What happens if the water tube is damaged?
A: It can restrict or stop water flow, leading to overheating and potential engine damage.

Q: How would I know if this tube is clogged or blocked?
A: You may notice weak water flow, overheating warnings, or inconsistent cooling performance.

Q: Is this part easy to replace?
A: It depends on the setup—often it requires separating sections of the outboard to access it.

Q: Can corrosion affect this part?
A: Yes, over time exposure to water—especially saltwater—can cause wear or buildup inside the tube.

Q: Should I inspect this during water pump service?
A: Yes, it’s a good time to check for blockages or damage while the lower unit is removed.