Yamaha - Water Pump Gasket - Cooling System Sealing Component - 676-44315-A1-00

Overview

Whenever I’m servicing a water pump, I never reuse the old gasket—it’s just asking for trouble. This gasket is what keeps the pump sealed tight so water pressure stays where it should be. Once they get compressed or brittle, you’ll start losing efficiency without always seeing an obvious leak. Swapping in a fresh one is a simple step that helps keep your cooling system working right.

Key Features

• Reliable Seal Performance – Creates a tight seal to maintain proper water pump pressure.
• Prevents Water Leaks – Helps keep water contained within the cooling system.
• Heat-Resistant Material – Designed to handle engine heat and continuous water exposure.
• Precision Cut Design – Matches Yamaha specifications for exact fit and alignment.
• Essential Service Component – Recommended replacement during water pump maintenance.

Engine & Boat Compatibility

• Designed for Yamaha outboard engines with water pump cooling systems
• Compatible with a range of small to mid-range horsepower models
• Suitable for both freshwater and saltwater applications
• Commonly used during water pump service and rebuilds

FAQ

Q: Do I really need to replace this gasket every time?
A: Yes, once compressed, gaskets rarely reseal properly and can lead to pressure loss.

Q: What happens if this gasket fails?
A: You can lose water pressure, which may lead to overheating or poor cooling performance.

Q: Is installation difficult?
A: Not at all, especially if you’re already working on the water pump. Just make sure surfaces are clean.

Q: Can I use sealant with this gasket?
A: It’s usually not necessary if the surfaces are clean and the gasket is installed correctly.

Q: Does saltwater affect gasket life?
A: Over time, yes. Saltwater use makes regular inspection and replacement more important.

• Supersessions
  676-44315-A0-00, 676-44315-00-00