Trim Tab Anode – Fits Yamaha 150-200 HP Outboards (Replaces 6K1-45371-01-00, 6K1-45371-02-00)
Trim Tab Anode – Fits Yamaha 150-200 HP Outboards (Replaces 6K1-45371-01-00, 6K1-45371-02-00) is backordered and will ship as soon as it is back in stock.
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Trim Tab Anode – Fits Yamaha 150-200 HP Outboards (Replaces 6K1-453...
Trim Tab Anode – Fits Yamaha 150-200 HP Outboards (Replaces 6K1-45371-01-00, 6K1-45371-02-00) is backordered and will ship as soon as it is back in stock.
Product Details
This marine-grade zinc alloy Trim Tab Anode – Fits Yamaha 150-200 HP Outboards provides essential corrosion protection and hydrodynamic trim adjustment. It is designed for a wide range of Yamaha engines, including 2-Stroke L150/L200 models (1987–1999) and 4-Stroke LF150, LZ150, LF200, and LZ200 series outboards from 1999 to 2024.
This part is a direct replacement for Yamaha 6K1-45371-01-00 and 6K1-45371-02-00, Sierra 18-6121Z/18-6121A, CMP CM6K14537102Z/CM6K14537102A, Tecnoseal 01134/01134AL, and GLM 12843.
- Installs easily with a direct single-bolt mount and included fastener.
- Engineered for saltwater, freshwater, and brackish marine environments.
- Functions as both a sacrificial anode and a hydrodynamic trim adjustment tab.
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 | 18-6121Z |
| Sierra | 18-6121A |
| CMP | CM6K14537102Z |
| CMP | CM6K14537102A |
| Tecnoseal | 01134 |
| Tecnoseal | 01134AL |
| GLM | 12843 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | L150ETXD | 150 | 2-Stroke | 1990 | 6K1-45371-01-00 | |
| Yamaha | L150ETXDA | 150 | 2-Stroke | 1990 | 6K1-45371-01-00 | |
| Yamaha | L150TXRP | 150 | 2-Stroke | 1991 | 6K1-45371-01-00 | |
| Yamaha | L150TXRQ | 150 | 2-Stroke | 1992 | 6K1-45371-01-00 | |
| Yamaha | L150TXRR | 150 | 2-Stroke | 1993 | 6K1-45371-01-00 | |
| Yamaha | L150TXRS | 150 | 2-Stroke | 1994 | 6K1-45371-01-00 | |
| Yamaha | L150TXRT | 150 | 2-Stroke | 1995 | 6K1-45371-01-00 | |
| Yamaha | L150TXRU | 150 | 2-Stroke | 1996 | 6K1-45371-01-00 | |
| Yamaha | L150TXRV | 150 | 2-Stroke | 1997 | 6K1-45371-01-00 | |
| Yamaha | L150TXRW | 150 | 2-Stroke | 1998 | 6K1-45371-01-00 | |
| Yamaha | L150 | 150 | 2-Stroke | 1987–1999 | 6K1-45371-01-00 | |
| Yamaha | LZ150 | 150 | 4-Stroke | 2000–2006 | 6K1-45371-01-00 | |
| Yamaha | LX150 | 150 | 2-Stroke | 1999–2001 | 6K1-45371-01-00 | |
| Yamaha | LF150 | 150 | 4-Stroke | 2005–2024 | 6K1-45371-01-00 | |
| Yamaha | L200ETXD | 200 | 2-Stroke | 1990 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200ETXDA | 200 | 2-Stroke | 1990 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRP | 200 | 2-Stroke | 1991 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRQ | 200 | 2-Stroke | 1992 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRR | 200 | 2-Stroke | 1993 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRS | 200 | 2-Stroke | 1994 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRT | 200 | 2-Stroke | 1995 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRU | 200 | 2-Stroke | 1996 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRV | 200 | 2-Stroke | 1997 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200TXRW | 200 | 2-Stroke | 1998 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | L200 | 200 | 2-Stroke | 1987–1999 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | LZ200 | 200 | 4-Stroke | 2000–2012 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | LX200 | 200 | 2-Stroke | 1999–2001 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | LF200 | 200 | 4-Stroke | 2012–2024 | 6K1-45371-02-00 | Counter-rotation version |
| Yamaha | F150 | 150 | 4-Stroke | 1999–2024 | 6K1-45371-00-00 | Part number variant |
| Yamaha | F175 | 175 | 4-Stroke | 2017–2024 | 6K1-45371-00-00 | Part number variant |
| Yamaha | F200 | 200 | 4-Stroke | 1999–2024 | 6K1-45371-00-00 | Part number variant |
Technical Specs
- Product Type
- Trim Tab Anode
- Installation
- Direct bolt-on with included fastener
- Material
- Marine Grade Zinc Alloy
- Color
- Silver/Gray
- Weight
- Approx. 1.04 pounds (0.47 kg)
- Fitting Type
- Single bolt mount
- Working Environment
- Marine (saltwater, freshwater, brackish)
- Purpose
- Sacrificial corrosion protection and hydrodynamic trim adjustment
- Warranty
- Manufacturer dependent, typically 1 year
- Other Technical Attributes
- Functions as both a sacrificial anode and hydrodynamic trim adjustment tab
What’s in the Box
- 1 x Zinc Trim Tab Anode (Replaces 6K1-45371-01-00 or 6K1-45371-02-00)
- 1 x Mounting Bolt
Installation Notes
- Ensure the engine is off and the battery is disconnected for safety. Tilt the outboard up and secure it.
- Locate the old trim tab anode on the underside of the anti-cavitation plate. It is typically held by a single bolt.
- Use a socket wrench to remove the mounting bolt and detach the worn anode.
- Thoroughly clean the mounting surface on the gearcase to ensure a good electrical connection. Remove any corrosion or debris.
- Position the new trim tab anode and insert the new mounting bolt.
- Tighten the bolt to the manufacturer's recommended torque specification. Do not overtighten.
- Lower the engine and reconnect the battery. Check the steering and trim function before operation.
Troubleshooting & FAQ
What is the difference between part numbers 6K1-45371-01-00 and 6K1-45371-02-00?
Part number 6K1-45371-01-00 is for standard rotation outboards, while 6K1-45371-02-00 is specifically for counter-rotation models. This anode is designed to replace both, but it's crucial to confirm which version your engine requires as it affects steering trim.
How do I know when to replace my trim tab anode?
You should inspect your anodes at least once a year or every 100 hours. Replace this anode when it is approximately 50-60% eroded. Heavy pitting, crumbling, or significant loss of mass are clear indicators that it's time for a replacement.
What is the dual purpose of this part?
This component serves two functions. First, it acts as a sacrificial anode, attracting corrosion to itself to protect more critical and expensive metal parts of your gearcase. Second, it functions as an adjustable trim tab to counteract propeller torque steer, helping your boat track straight.
Is this anode suitable for both saltwater and freshwater?
Yes, this is a zinc alloy anode, which is the industry standard for all-purpose use in saltwater, freshwater, and brackish environments, providing reliable protection across different water salinities.
My newer 4-stroke model (2020+) is listed. Is compatibility guaranteed?
While the data covers models up to 2024, manufacturers can make small changes. We strongly recommend verifying the part by comparing your old anode's shape and part number to the images and specifications in this listing before ordering.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in 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.
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