Yamaha - Thermostat Cover - Cooling System Housing - 69M-E2413-00-1S

Overview

This cover might not look like much, but it’s what keeps your thermostat sealed and working the way it should. When everything’s tight and aligned, your engine warms up properly and holds temperature without any issues. But if this cover gets warped, corroded, or doesn’t seal right, you’ll start dealing with leaks or inconsistent cooling. It’s one of those simple parts that helps keep the whole cooling system doing its job.

Key Features

• Thermostat Housing Protection – Secures and protects the thermostat within the cooling system.
• Leak Prevention Seal Surface – Provides a proper sealing surface to keep coolant contained.
• Durable Marine Construction – Built to handle heat cycles and exposure to water conditions.
• OEM Fitment Accuracy – Matches Yamaha specifications for proper alignment and installation.

Engine & Boat Compatibility

Designed for Yamaha outboard engines using this style of thermostat cover within the cooling system. Commonly used across mid-range Yamaha applications where stable engine temperature is critical.

FAQ

Q: What are signs this cover needs to be replaced?
A: Coolant leaks, corrosion, or improper sealing around the thermostat housing are common signs.

Q: Can a bad cover affect engine temperature?
A: Yes, poor sealing can lead to inconsistent cooling and temperature fluctuations.

Q: Should I replace the gasket when installing this cover?
A: Always—it ensures a proper seal and prevents leaks.

Q: Does saltwater affect this part?
A: Over time, yes. Corrosion can build up if not properly maintained.

Q: Is installation difficult?
A: It’s usually straightforward with basic tools and proper gasket placement.

• Supersessions
  69M-E2413-00-9M, 6EG-E2413-00-1S, 6EG-E2413-00-1S