Trim Tab Zinc Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-02)
Trim Tab Zinc Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-02) is backordered and will ship as soon as it is back in stock.
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Trim Tab Zinc Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-02)
Trim Tab Zinc Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-02) is backordered and will ship as soon as it is back in stock.
Product Details
This Trim Tab Zinc Anode – Fits Yamaha 150-200 HP (Replaces 6K1-45371-02) is engineered to provide essential corrosion protection for Yamaha outboard motors. It is specifically designed for 150-200 HP, 2-Stroke & 4-Stroke models from 1990–2024 that use a left-hand (counter) rotation lower unit, including LF150, LF200, L150, L200, LX150, and LZ series.
This part offers a direct interchange for Yamaha 6K1-45371-02, Sierra 18-6121, CMP CM6K14537102Z, and Tecnoseal 01134.
- Designed for simple bolt-on installation.
- Formulated with a marine-grade sacrificial zinc alloy for optimal protection in saltwater.
- Meets or exceeds Mil-Spec A-18001K standards for material quality.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6K1-45371-02 |
| Sierra | 18-6121 |
| CMP | CM6K14537102Z |
| Tecnoseal | 01134 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This anode is compatible with select left-hand (counter rotation) Yamaha outboard motors.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | LF150 | 150 | 4-Stroke | All years | 6K1-45371-02 | All Models |
| Yamaha | FL150AET1X | 150 | 4-Stroke | 6K1-45371-02 | ||
| Yamaha | LF200XB | 200 | 4-Stroke | 6K1-45371-02 | ||
| Yamaha | LF200XC | 200 | 4-Stroke | 6K1-45371-02 | ||
| Yamaha | L150ETX | 150 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | L150TXR | 150 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | L200ETX | 200 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | L200TXR | 200 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | LX150TXR | 150 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | LZ150TXR | 150 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | LZ200TXR | 200 | 6K1-45371-02 | Counter Rotation | ||
| Yamaha | L150ETXD | 150 | 2-Stroke | 1990 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150ETXDA | 150 | 2-Stroke | 1990 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200ETXD | 200 | 2-Stroke | 1990 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200ETXDA | 200 | 2-Stroke | 1990 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRP | 150 | 2-Stroke | 1991 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRP | 200 | 2-Stroke | 1991 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRQ | 150 | 2-Stroke | 1992 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRQ | 200 | 2-Stroke | 1992 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRR | 150 | 2-Stroke | 1993 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRR | 200 | 2-Stroke | 1993 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRS | 150 | 2-Stroke | 1994 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRS | 200 | 2-Stroke | 1994 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRT | 150 | 2-Stroke | 1995 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRT | 200 | 2-Stroke | 1995 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRU | 150 | 2-Stroke | 1996 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRU | 200 | 2-Stroke | 1996 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRV | 150 | 2-Stroke | 1997 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRV | 200 | 2-Stroke | 1997 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L150TXRW | 150 | 2-Stroke | 1998 | 6K1-45371-02 | Counter Rotation |
| Yamaha | L200TXRW | 200 | 2-Stroke | 1998 | 6K1-45371-02 | Counter Rotation |
| Yamaha | LF150XCB | 150 | 4-Stroke | Up to 2024 | 6K1-45371-02 | Counter Rotation |
| Yamaha | LF150XC2 | 150 | 4-Stroke | Up to 2024 | 6K1-45371-02 | Counter Rotation |
| Yamaha | LF200XB | 200 | 4-Stroke | Up to 2024 | 6K1-45371-02 | Counter Rotation |
| Yamaha | LF200XB2 | 200 | 4-Stroke | Up to 2024 | 6K1-45371-02 | Counter Rotation |
Technical Specs
- Product Type
- Trim Tab/Skeg Zinc Anode
- Application
- Saltwater
- Material
- Marine-Grade Sacrificial Zinc Alloy
- Installation
- Bolt-on with M10x1.25mm threaded mounting hole
- Weight
- 0.45 kg (1.0 lb)
- Base Diameter
- 101.6 mm (4 inches)
- Thread Size
- M10 x 1.25mm
- Compliance
- Meets Mil-Spec A-18001K, A-18001A, A-18001
What’s in the Box
- 1 x Zinc Trim Tab Anode (6K1-45371-02)
*Note: Hardware not included*
Installation Notes
- Disconnect the battery to prevent accidental starts.
- Locate and remove the old trim tab anode. The bolt is typically accessed from above the anti-cavitation plate.
- Clean the mounting surface on the lower unit to ensure a good electrical connection.
- Install the new anode, making sure any indicator marks align as per your engine's manual.
- Tighten the mounting bolt securely. Do not overtighten. Reconnect the battery.
Troubleshooting & FAQ
How do I know if this anode fits my engine?
This anode is specifically for Yamaha 150-200 HP engines with left-hand (counter) rotation. Please verify your exact engine model and rotation type before purchasing. It is not suitable for standard, right-hand rotation models.
How often should this trim tab anode be replaced?
Inspect your anodes every 6-12 months. We recommend replacement when the anode is approximately 50% corroded to ensure your engine's lower unit remains protected.
What are the signs a trim tab anode is failing?
Visible signs include heavy pitting, crumbling, or the anode being reduced to less than half its original size. Failure to replace a depleted anode can lead to accelerated corrosion on your gearcase, propeller, and other underwater metallic components.
Can I use this on a standard rotation engine?
No. This part is specifically shaped and designed for left-hand (counter-rotation) lower units. Using it on a standard rotation engine may cause improper steering trim and reduced corrosion protection.
Is this part different from the original Yamaha part?
While this is an aftermarket part, it is manufactured to meet or exceed OEM specifications for material, fit, and function. It provides the same level of sacrificial protection as the original 6K1-45371-02 anode.
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.
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