Yamaha - Internal Crankcase Anode Kit - F75, F90, F115 Corrosion Protection - 2006–2008

Overview

On these mid-range Yamaha four-strokes, internal corrosion protection is something you don’t want to skip—especially if the motor sees saltwater. These anodes are designed to take the corrosion hit so the engine’s internal components stay protected. Over time, they wear down, and once they’re gone, the engine becomes the next target. Replacing them along with the grommets is simple maintenance that helps keep everything protected and running strong.

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 fit and sealing.

• Designed for Multiple Models – Built for Yamaha F75, F90, and F115 outboards from 2006 through 2008.

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

Engine & Boat Compatibility

• F75 2006–2008
• F90 2006–2008
• F115 2006–2008

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
  • F75 2006–2008
  • F90 2006–2008
  • F115 2006–2008