Yamaha - Water Tube - Cooling System Component - 68V-44361-11-00

Overview

The water tube is a key part of your Yamaha outboard’s cooling system, responsible for directing water from the lower unit up to the engine. This steady flow keeps internal components at safe operating temperatures. If the tube becomes blocked, corroded, or damaged, water flow can be reduced, increasing the risk of overheating. Replacing it helps maintain proper cooling performance and keeps your engine running efficiently and reliably.

Key Features

• Cooling System Flow – Transfers water from the pump to the engine for proper cooling.
• Prevents Overheating – Supports consistent water circulation through the powerhead.
• OEM Yamaha Fitment – Designed to factory specifications for proper alignment and sealing.
• Durable Construction – Built to withstand corrosion and long-term marine use.

Engine & Boat Compatibility

Compatible with Yamaha outboards using this water tube within the cooling system.

FAQ

Q: What does the water tube do?
A: It carries cooling water from the lower unit to the engine.

Q: What are signs of a bad water tube?
A: Weak water flow, overheating, or inconsistent cooling.

Q: Is this part inside the lower unit?
A: It runs from the lower unit up into the engine’s cooling passages.

Q: Should this be replaced during water pump service?
A: It’s typically inspected and replaced if worn, corroded, or damaged.

Q: Is installation difficult?
A: It requires lower unit removal and is usually done during cooling system service.

• Supersessions
  68V-44361-10-00