Yamaha - Internal Crankcase Anode Kit - F115 XB, LB, JB Corrosion Protection

Overview

On the F115 models, internal anodes are one of those small parts doing big work behind the scenes. They’re designed to take the corrosion hit before it reaches critical engine components, especially if you’re running in saltwater. Once they wear down, that protection starts to disappear. Replacing the anode along with the grommet is simple maintenance that helps keep your engine protected and running reliably.

Key Features

• Internal Corrosion Protection – Sacrificial anode helps prevent electrolysis from damaging internal engine components.

• Includes Grommet – Comes with a matching grommet for proper fit and sealing during installation.

• Designed for F115 Variants – Built for Yamaha F115 XB, LB, and JB models.

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

Engine & Boat Compatibility

• F115 XB
• F115 LB
• F115 JB

FAQ

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

Q: What happens if I don’t replace it?
A: Once the anode is worn out, corrosion can begin attacking internal engine components.

Q: Is the grommet important to replace?
A: Yes, it ensures proper sealing and secure installation of the anode.

Q: How do I know if the anode is worn?
A: If it’s heavily corroded or significantly reduced in size, it’s time to replace it.

Q: Is this a difficult job?
A: It’s usually a quick and straightforward maintenance task with basic tools.

• Engine Application
  • F115 XB LB JB