Trim Tab Anode – Fits Yamaha 150–200 HP Outboard Motors
This aftermarket trim tab anode is designed for Yamaha 150–200 HP 4-stroke and 2-stroke counter-rotation engines manufactured between 1987 and 2024. It fits a wide range of counter-rotation (left-hand) outboards, including the LF150, L150, LF200, L200, LX150, LZ150, and LZ200 series.
This anode is a direct replacement for multiple OEM and aftermarket part numbers, ensuring broad compatibility for your specific counter-rotation outboard motor.
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Material: High-purity, marine-grade zinc alloy for superior sacrificial corrosion protection.
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Installation: Mounts easily with a single M10 bolt.
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Includes: Package contains one trim tab anode and one mounting bolt.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Yamaha |
6K1-45371-01 / 6K1-45371-02-00 |
| Sierra |
18-6121A / 18-6121Z |
| Tecnoseal |
01134AL / 01134 |
| GLM |
12843 |
| CMP |
CM6K14537102A / CM6K14537102Z |
Compatible Engine Models
Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.
| Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
| Yamaha |
L150 |
150 |
2-Stroke |
1987-1999 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LZ150 |
150 |
2-Stroke |
2000-2006 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LX150 |
150 |
2-Stroke |
1999-2001 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LF150 |
150 |
4-Stroke |
2005-2024 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
L200 |
200 |
2-Stroke |
1987-1999 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LZ200 |
200 |
2-Stroke |
2000-2012 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LX200 |
200 |
2-Stroke |
1999-2001 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
| Yamaha |
LF200 |
200 |
4-Stroke |
2012-2024 |
6K1-45371-01/6K1-45371-02 |
Counter rotation outboard |
Technical Specifications
| Specification |
Value |
| Product Type |
Trim Tab Anode (Sacrificial) |
| Application |
Yamaha 150–200 HP Counter-Rotation Outboards |
| Material |
Marine Grade Zinc Alloy |
| Installation |
Single bolt mount |
| Thread Size |
M10 x 1.25mm |
| Dimensions |
4" diameter (101.6 mm) |
| Weight |
1.0–1.5 lbs (0.45–0.68 kg) |
| Position |
Rear Lower Unit |
Package Contents
- 1 x Zinc Alloy Trim Tab Anode
- 1 x M10 Mounting Bolt
Installation Guide
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Safety First: Turn off the engine and disconnect the battery.
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Locate Anode: Find the old trim tab anode on the lower unit, typically above the propeller.
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Remove Old Anode: Use a wrench or socket to remove the single mounting bolt securing the anode. The old anode may be difficult to remove if severely corroded.
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Clean Surface: Thoroughly clean the mounting surface on the lower unit to ensure a good electrical connection.
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Install New Anode: Position the new trim tab anode and align the bolt hole.
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Secure Bolt: Insert the new M10 bolt and tighten it securely. Do not overtighten.
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Final Check: Reconnect the battery. The installation is complete.
Troubleshooting & FAQ
How do I confirm this fits my counter-rotation Yamaha engine?
Check the compatibility table for your specific model (e.g., L150, LZ150, LF200) and year. This anode is specifically designed for Yamaha 150-200 HP counter-rotation outboards from 1987-2024 and directly replaces OEM part numbers 6K1-45371-01 and 6K1-45371-02.
How often should I replace my trim tab anode?
You should inspect your anode regularly (at least annually) and replace it when it appears to be 50% corroded. This ensures your outboard motor's metal components remain protected from galvanic corrosion.
What are the signs of a worn or failing trim tab anode?
A completely corroded, missing, or heavily pitted anode is a clear sign it needs immediate replacement. You may also notice accelerated corrosion on other metal parts of your engine's lower unit, such as the propeller or gearcase housing.
OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.