Trim Tab Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-01, 6K1-45371-02)
Trim Tab Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-01, 6K1-45371-02) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Trim Tab Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-01, 6K1...
Product Details
This is a high-quality aftermarket Trim Tab Anode – Fits Yamaha 150–200 HP Outboard Motors, designed for both 4-stroke and 2-stroke engines from 1987 to 2024. It is specifically made for counter-rotation lower units, including LF150, L150, LF200, L200, LX150, LZ150, and LZ200 series outboards. This sacrificial anode protects your engine from galvanic corrosion in marine environments.
It serves as a direct replacement for Yamaha part numbers 6K1-45371-01 and 6K1-45371-02, along with equivalents from Sierra (18-6121A, 18-6121Z), Tecnoseal (01134AL, 01134), GLM (12843), and CMP (CM6K14537102A, CM6K14537102Z).
- Installs easily with a single M10 bolt mount.
- Constructed from marine-grade zinc alloy for maximum protection in saltwater.
- Package includes one anode and one mounting bolt.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6K1-45371-01 / 6K1-45371-02-00 |
| Sierra | 18-6121A / 18-6121Z |
| Tecnoseal | 01134AL / 01134 |
| GLM | 12843 |
| CMP | CM6K14537102A / CM6K14537102Z |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| 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 Specs
- Product Type
- Trim Tab Anode (Sacrificial)
- Application
- Counter-rotation outboards
- Function
- Provides electrolytic/galvanic corrosion protection
- Installation
- Single bolt mount (M10 x 1.25mm thread)
- Material
- Marine Grade Zinc Alloy
- Position
- Rear Lower Unit
- Dimensions
- 4" diameter (101.6 mm)
- Weight
- 1.0-1.5 lbs (0.45-0.68 kg)
What’s in the Box
- 1 x Zinc Alloy Trim Tab Anode
- 1 x Mounting Bolt (M10 x 1.25mm)
Installation Notes
- Disconnect the battery or main power supply to the engine for safety.
- Locate and unbolt the old trim tab anode from the lower unit. It is typically a single bolt.
- Clean the mounting surface on the lower unit thoroughly, ensuring a good metal-to-metal contact for proper electrical conductivity.
- Position the new trim tab anode and fasten it securely with the included mounting bolt. Do not overtighten.
- Reconnect the battery and test the engine's steering and trim functions before returning to the water.
Troubleshooting & FAQ
How do I know if this trim tab fits my engine?
This anode is designed for specific Yamaha counter-rotation models. Please verify your engine's model number and year against the compatibility chart provided on this page before ordering.
What are the signs that my trim tab anode needs replacing?
Inspect the anode regularly. It should be replaced when it is approximately 50% consumed, shows heavy pitting, or has crumbled. A worn-out anode can no longer protect your engine from corrosion.
How often should I replace my anode?
Replacement intervals depend on usage and water conditions (salt, fresh, or brackish). A good practice is to inspect every 50-100 hours or at least once a year. Anodes in saltwater environments will corrode faster.
Why is this anode made of zinc?
Zinc alloy anodes are the standard for providing excellent galvanic protection for outboard motors operating in saltwater. For freshwater or brackish water, an aluminum or magnesium anode may be more suitable.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in 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.
Payment & Security
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