The Yamaha 6E5-11325-00-00 is a genuine OEM internal zinc engine anode designed to protect internal engine components such as the cylinder head, crankcase, and cooling passages from galvanic corrosion. It acts as a sacrificial element, corroding in place of critical engine metals to extend engine life.

This anode is widely used across Yamaha outboards and is essential for maintaining proper corrosion protection in saltwater environments.

Key Features

Genuine Yamaha OEM anode
Marine-grade zinc construction (saltwater optimized)
Protects internal cooling passages and engine components
Compact internal pencil style design
Direct replacement exact OEM fit

Engine Compatibility

Commonly used in Yamaha outboards including:

2-stroke and 4-stroke Yamaha engines
9.9 HP up to 350 HP models

Installed in:

Cylinder head
Crankcase
Oil cooler / internal cooling passages

Serial Number Fitment Notice

Always confirm:

Engine model and serial number
Correct anode location (internal positions vary)

Internal Yamaha anodes are location-specific and must match OEM part number exactly.

When This Part Needs Replacement

Anode is 50% or more consumed
Heavy corrosion or scaling
Reduced cooling efficiency
Routine maintenance (every 100 hours or seasonal inspection recommended)

Installation Notes

Remove carefully to avoid breakage inside port
Inspect threads and seating area
Replace sealing components if required
Do not overtighten
Inspect regularly in saltwater use

Alternate / Superseded Part Numbers

Yamaha: 6E5-11325-00-00
Related / cross-reference:
- 6E5-11325-00
- Various aftermarket equivalents available

Parts Desk Insight

This is one of Yamahas most widely used internal anodes. Because it protects areas you cant see, its often overlookedbut when its gone, corrosion starts internally. Replacing it regularly is one of the cheapest ways to prevent major engine damage.