Yamaha - Internal Crankcase Anode Kit - F200, F225, F250 3.3L Corrosion Protection - 2009–Current

Overview

On the 3.3L F200, F225, and F250 models, internal anodes are constantly working to protect the engine from corrosion you can’t see. Whether you’re running in saltwater or freshwater, they take the hit so the internal components don’t. Over time, they wear down, and once they’re gone, that protection is gone too. Replacing them along with the grommets is simple maintenance that helps keep your engine protected and performing the way it should.

Key Features

• Internal Corrosion Protection – Sacrificial anodes help prevent electrolysis from damaging internal engine components.

• Complete Kit with Grommets – Includes both anodes and matching grommets for proper installation and sealing.

• Designed for 3.3L Models – Built for Yamaha F200, F225, and F250 3.3-liter outboards.

• Preventative Maintenance Essential – Helps extend engine life by protecting internal metal surfaces over time.

Engine & Boat Compatibility

• F200 3.3L 2009–Current
• F225 3.3L 2009–Current
• F250 3.3L 2009–Current

FAQ

Q: How often should I replace these internal anodes?
A: Typically once per season, or more often if the engine is used in saltwater regularly.

Q: What happens if I don’t replace them?
A: Corrosion can begin attacking internal engine components once the anodes are worn out.

Q: Are the grommets important to replace too?
A: Yes, they ensure proper sealing and secure installation of the anodes.

Q: How do I know if the anodes are worn?
A: If they’re heavily corroded or significantly reduced in size, it’s time to replace them.

Q: Is this a difficult job?
A: It’s usually straightforward with basic tools, depending on engine access.

• Engine Application
  • F200 3.3L 2009–Current
  • F225 3.3L 2009–Current
  • F250 3.3L 2009–Current