Yamaha - Water Tube Assembly - Cooling System Water Transfer - 6EE-G4360-00-00

Overview

Water tubes are one of those parts you don’t notice until the engine starts running hotter than it should. I’ve worked on plenty of small Yamaha outboards where a misaligned or corroded tube caused cooling issues that didn’t show up right away. This piece is what carries water from the pump up into the powerhead, so it has to be lined up and sealed correctly. When it’s right, the cooling system just works without any second thought.

Key Features

• Direct Cooling Water Routing – Transfers water efficiently from the lower unit to the engine.
• Consistent Temperature Control Support – Helps maintain proper engine cooling during operation.
• Durable Tube Construction – Built to handle constant water flow, heat, and vibration.
• Precision Alignment Fit – Designed to seat correctly between water pump and engine connections.
• Exact Yamaha Replacement – Matches factory specifications for reliable installation and performance.

Engine & Boat Compatibility

Designed for Yamaha outboard engines utilizing an internal water tube within the cooling system. Commonly used across small to mid-range Yamaha outboards in recreational and utility boats. Suitable for freshwater and saltwater environments where dependable cooling performance is essential.

FAQ

Q: What are signs this water tube is damaged or failing?
A: Overheating, weak water flow, or visible corrosion or bending are common indicators.

Q: Does this part require adjustment during installation?
A: No adjustment is needed, but proper alignment is critical when reinstalling the lower unit.

Q: Any tips for installing this water tube?
A: Make sure it lines up cleanly with the water pump outlet and seals to avoid leaks or restriction.

Q: How does saltwater exposure affect this part?
A: Corrosion can build up over time, so regular flushing and inspection help extend its life.

Q: Can a misaligned water tube cause engine damage?
A: Yes, restricted water flow can lead to overheating and serious engine issues if not corrected.

• Supersessions
  6BX-G4360-00-00