Trim Tab Skeg Anode – Fits Yamaha 150–200 HP Outboards (Replaces 6K1-45371-01, 6K1-45371-02)
Trim Tab Skeg Anode – Fits Yamaha 150–200 HP Outboards (Replaces 6K1-45371-01, 6K1-45371-02) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Trim Tab Skeg Anode – Fits Yamaha 150–200 HP Outboards (Replaces 6K...
Product Details
This is an aftermarket Trim Tab Skeg Anode – Fits Yamaha 150–200 HP Outboards (Replaces 6K1-45371-01, 6K1-45371-02). It is specifically designed for Yamaha 150 HP to 200 HP, 2-stroke and 4-stroke outboard engines from 1987 to 2024 that use a counter-rotating (left-hand) propeller.
It serves as a direct replacement for Yamaha OEM parts 6K1-45371-01-00 and 6K1-45371-02-00, along with aftermarket interchanges like Sierra 18-6121 and Tecnoseal 01134.
- Installs quickly with a direct bolt-on design.
- Engineered for counter-rotating (LH) lower units.
- Constructed from a durable zinc alloy for reliable sacrificial protection in saltwater.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6K1-45371-01-00 |
| Yamaha | 6K1-45371-02-00 |
| Sierra | 18-6121 |
| Sierra | 18-6121Z |
| Tecnoseal | 01134 |
| Tecnoseal | 01134AL |
| CMP | CM6K14537102Z |
| CMP | CM6K14537102A |
| GLM | 12843 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is verified to fit the following Yamaha outboard models. It is critical to ensure your model uses a counter-rotating (left-hand) propeller, as this anode is specific to that configuration.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | L150ETXD | 150 | 2-Stroke | 1990 | 6K1-45371-01/02 | |
| Yamaha | L15OETXDA | 150 | 2-Stroke | 1990 | 6K1-45371-01/02 | |
| Yamaha | L150TXRP | 150 | 2-Stroke | 1991 | 6K1-45371-01/02 | |
| Yamaha | L150TXRQ | 150 | 2-Stroke | 1992 | 6K1-45371-01/02 | |
| Yamaha | L150TXRR | 150 | 2-Stroke | 1993 | 6K1-45371-01/02 | |
| Yamaha | L150TXRS | 150 | 2-Stroke | 1994 | 6K1-45371-01/02 | |
| Yamaha | L150TXRT | 150 | 2-Stroke | 1995 | 6K1-45371-01/02 | |
| Yamaha | L150TXRU | 150 | 2-Stroke | 1996 | 6K1-45371-01/02 | |
| Yamaha | L150TXRV | 150 | 2-Stroke | 1997 | 6K1-45371-01/02 | |
| Yamaha | L150TXRW | 150 | 2-Stroke | 1998 | 6K1-45371-01/02 | |
| Yamaha | L150 | 150 | 2-Stroke | 1987–1999 | 6K1-45371-01/02 | |
| Yamaha | LZ150 | 150 | 2-Stroke | 2000–2006 | 6K1-45371-01/02 | |
| Yamaha | LX150 | 150 | 2-Stroke | 1999–2001 | 6K1-45371-01/02 | |
| Yamaha | LF150 | 150 | 4-Stroke | 2005–2024 | 6K1-45371-01/02 | |
| Yamaha | L200ETXD | 200 | 2-Stroke | 1990 | 6K1-45371-01/02 | |
| Yamaha | L200TXRP | 200 | 2-Stroke | 1991 | 6K1-45371-01/02 | |
| Yamaha | L200TXRQ | 200 | 2-Stroke | 1992 | 6K1-45371-01/02 | |
| Yamaha | L200TXRR | 200 | 2-Stroke | 1993 | 6K1-45371-01/02 | |
| Yamaha | L200TXRS | 200 | 2-Stroke | 1994 | 6K1-45371-01/02 | |
| Yamaha | L200TXRT | 200 | 2-Stroke | 1995 | 6K1-45371-01/02 | |
| Yamaha | L200TXRU | 200 | 2-Stroke | 1996 | 6K1-45371-01/02 | |
| Yamaha | L200TXRV | 200 | 2-Stroke | 1997 | 6K1-45371-01/02 | |
| Yamaha | L200TXRW | 200 | 2-Stroke | 1998 | 6K1-45371-01/02 | |
| Yamaha | L200 | 200 | 2-Stroke | 1987–1999 | 6K1-45371-01/02 | |
| Yamaha | LZ200 | 200 | 2-Stroke | 2000–2012 | 6K1-45371-01/02 | |
| Yamaha | LX200 | 200 | 2-Stroke | 1999–2001 | 6K1-45371-01/02 | |
| Yamaha | LF200 | 200 | 4-Stroke | 2012–2024 | 6K1-45371-01/02 | |
| Yamaha | LF175 | 175 | 4-Stroke | 2017–2018 | 6K1-45371-01/02 | |
| Yamaha | 175 | 175 | 2-Stroke | 2004 | 6K1-45371-01/02 |
Technical Specs
- Product Type
- Trim Tab Skeg Anode
- Installation
- Direct Bolt-On
- Fitting Type
- Trim Tab
- Application
- Counter-Rotating Motors (LH), 90° Block Design
- Housing Material
- Zinc Alloy
- Housing Color
- Silver/Gray
- Connection
- M10 x 1.25mm Threaded Bolt (Mounting Hardware Not Included)
- Dimensions
- 4" Diameter Base
- Weight
- 0.69 kg (1.52 lbs)
What’s in the Box
- 1 x Zinc Trim Tab Anode (replaces 6K1-45371-02-00)
Installation Notes
- Ensure the engine is off and the outboard is tilted up to a safe working position.
- Locate the old trim tab anode on the underside of the anti-cavitation plate.
- Use a wrench to remove the mounting bolt and detach the old, worn anode.
- Clean the mounting surface thoroughly to ensure a good electrical connection.
- Position the new anode and insert the mounting bolt.
- Tighten the bolt to the manufacturer's specified torque. Do not overtighten.
Troubleshooting & FAQ
Is this anode for standard or counter-rotation engines?
This anode is specifically designed for Yamaha engines with counter-rotating (Left Hand) propellers. It will not function correctly on a standard (Right Hand) rotation lower unit.
Is mounting hardware included?
No, the M10 x 1.25mm mounting bolt is not included. You will need to reuse your existing hardware if it is in good condition or purchase a new bolt separately.
How can I tell if my trim tab anode needs replacing?
Inspect your anode regularly. It should be replaced when it appears to be 50% eroded or heavily pitted. A worn anode reduces its ability to protect other metal components from galvanic corrosion and can affect steering.
What is the difference between zinc and aluminum anodes?
Zinc anodes are the standard for saltwater use. Aluminum anodes are formulated for saltwater and brackish water. Magnesium anodes are for freshwater use only. This product is a zinc anode, ideal for saltwater environments.
Why is my boat pulling to one side?
The trim tab anode also acts as a small rudder to counteract propeller torque. If it is worn out or improperly adjusted, your boat may pull to one side. Ensure the new anode is installed correctly and adjusted as needed.
Can I paint my anode?
No. Never paint an anode. Paint insulates the anode, preventing it from making the electrical contact with the water that is necessary for it to provide sacrificial protection to your engine.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It has been built to OEM-level specifications with comparable materials. It was manufactured in an ISO 9002 facility and is batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available.
Warranty & returns
This part is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
