Yamaha - Water Tube - Cooling System Component - 6C5-44361-00-00

Overview

Cooling problems can sneak up on you, and a lot of times it comes down to something simple like water flow. This tube is what carries water from the lower unit up into the engine, so if it’s restricted or out of place, the whole system suffers. I’ve seen overheating issues traced back to a bent or clogged tube more than once. Keeping this path clear and solid is key to keeping the motor running cool.

Key Features

• Direct Water Flow Path – Transfers cooling water from the pump to the engine efficiently.

• Maintains Cooling Performance – Supports steady temperature control under load.

• OEM Fit Accuracy – Matches Yamaha factory specs for proper alignment and installation.

• Durable Marine Construction – Built to handle heat, pressure, and harsh water conditions.

Engine & Boat Compatibility

Verify compatibility with your specific Yamaha outboard model and part number before installation.

FAQs

Q1: What are signs this water tube is damaged?
A: Overheating, weak water flow, or visible bending or corrosion.

Q2: Can a blocked tube cause engine damage?
A: Yes, restricted water flow can lead to overheating and serious issues.

Q3: Should this be checked during water pump service?
A: Yes, it’s always a good idea to inspect it while the lower unit is off.

Q4: Can debris clog this tube?
A: Yes, sand, shells, and buildup can restrict flow over time.

Q5: Is installation difficult?
A: It requires proper alignment during lower unit installation but is manageable with experience.