Aluminum Trim Tab Anode for Yamaha 120/200 HP Counter-Rotation Outboards – Replaces 6K1-45371-02
Aluminum Trim Tab Anode for Yamaha 120/200 HP Counter-Rotation Outboards – Replaces 6K1-45371-02 is backordered and will ship as soon as it is back in stock.
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Aluminum Trim Tab Anode for Yamaha 120/200 HP Counter-Rotation Outb...
Aluminum Trim Tab Anode for Yamaha 120/200 HP Counter-Rotation Outboards – Replaces 6K1-45371-02 is backordered and will ship as soon as it is back in stock.
Product Details
This is a high-quality aftermarket aluminum trim tab anode for selected Yamaha counter-rotation outboard applications. It is designed to provide sacrificial galvanic protection for the lower unit and help reduce corrosion of exposed underwater metal components in marine environments.
This anode replaces Yamaha OEM part number 6K1-45371-02. Catalog references identify this application for 120 HP and 200 HP Yamaha counter-rotation outboards. Always compare the original anode, mounting location, and OEM number before ordering.
- Aluminum sacrificial anode construction.
- Designed for Yamaha counter-rotation lower-unit applications identified by OEM number 6K1-45371-02.
- Helps protect underwater engine components through controlled galvanic corrosion.
- Aftermarket replacement component; Yamaha is a registered trademark of Yamaha Motor Co., Ltd.
Part Number Reference
Use the reference below to compare your original component before purchase.
| Brand | Reference | Application Note |
|---|---|---|
| Yamaha | 6K1-45371-02 | OEM reference for the 120 HP and 200 HP counter-rotation anode application. |
Engine Compatibility
The available catalog application identifies this anode by OEM reference and horsepower/application description rather than a complete model-year list. Confirm the exact engine model, serial range, lower-unit configuration, and original anode before installation.
| Brand | Rated Horsepower | Configuration | OEM Reference | Fitment Status |
|---|---|---|---|---|
| Yamaha | 120 HP | Counter rotation outboard | 6K1-45371-02 | Catalog application reference |
| Yamaha | 200 HP | Counter rotation outboard | 6K1-45371-02 | Catalog application reference |
Technical Specifications
- Product Type
- Trim tab sacrificial anode
- Material
- Aluminum
- Application
- Yamaha counter-rotation outboard lower units
- Reference OEM Number
- 6K1-45371-02
- Function
- Provides sacrificial galvanic corrosion protection
- Installation Position
- Trim-tab anode location on the lower unit
What’s in the Box
- 1 × Aluminum trim tab anode
Note: A mounting bolt or other hardware is not confirmed as included. Reuse the original hardware only if it is serviceable and correct for your engine, or obtain replacement hardware separately as required.
Installation Notes
- Remove the key and ensure the engine cannot start before beginning work.
- Locate the existing trim tab anode on the lower unit and remove the retaining hardware.
- Clean corrosion, paint, sealant, and debris from the mounting contact surfaces. Good metal-to-metal contact is necessary for the anode to work correctly.
- Position the replacement anode in the same orientation as the original and install the correct retaining hardware.
- Tighten the hardware according to the applicable Yamaha service-manual specification. Do not overtighten or coat the contact surfaces with insulating paint.
- Inspect the installation before launching the boat and check the anode periodically for proper consumption.
Maintenance & FAQ
How do I confirm that this anode fits my engine?
Confirm that your original anode or parts documentation identifies Yamaha OEM reference 6K1-45371-02 and that your engine is a 120 HP or 200 HP counter-rotation application. Model names alone are not sufficient because lower-unit configuration and serial range can affect fitment.
Why is this anode made of aluminum?
Aluminum anodes are commonly used for broad marine operating conditions, including saltwater and brackish-water service. The correct anode material depends on the boat, engine, water conditions, and manufacturer application.
When should a trim tab anode be replaced?
Inspect the anode regularly and replace it when it is substantially consumed, deeply pitted, loose, damaged, or no longer making a clean electrical connection with the mounting surface. Usage and water conditions determine service life.
Is this an OEM Yamaha part?
No. This listing is for an aftermarket replacement anode referenced to Yamaha OEM number 6K1-45371-02. Yamaha is a registered trademark of Yamaha Motor Co., Ltd.; this product is not manufactured or supplied by Yamaha.
Safety & Important Information
- Verify the OEM reference, original anode shape, mounting arrangement, and lower-unit configuration before ordering.
- Do not paint, grease, or electrically isolate the anode-to-lower-unit contact area.
- Use the correct hardware and service-manual torque specification for your engine.
- Professional installation is recommended if the mounting hardware is corroded or the original anode cannot be removed safely.
About Sea Sierra
- Marine Replacement Parts — Practical aftermarket components for repair and maintenance applications.
- Fitment-Focused Listings — Product references and application information are provided to help customers compare the original part before ordering.
- Customer Support — Contact support with your engine model, serial information, and original-part details if you need help comparing an application.
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