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Aluminum Alloy Anode – Fits Yamaha Outboard 40-130 HP (Replaces 6H1-45251-02-00, 6H1-45251-03-00)

Regular price $16.40

Aluminum Alloy Anode – Fits Yamaha Outboard 40-130 HP (Replaces 6H1-45251-02-00, 6H1-45251-03-00) is backordered and will ship as soon as it is back in stock.


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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

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This marine-grade Aluminum Alloy Anode – Fits Yamaha Outboard 40-130 HP (Replaces 6H1-45251-02-00, 6H1-45251-03-00) provides essential corrosion protection for your engine's transom bracket. It is engineered for a direct fit on a wide range of Yamaha 40–130 HP 2-Stroke & 4-Stroke outboard engines manufactured between 1999 and 2016.

It serves as a direct replacement for Yamaha parts 6H1-45251-02-00 and 6H1-45251-03-00, and interchanges with Sierra 18-6091, Tecnoseal 01115, CMP CM6H14525102Z, and GLM 12884.

  • Installs easily with standard mounting hardware (bolt-on).
  • Designed for use in both fresh and salt water environments.
  • Aluminum alloy construction provides superior, longer-lasting protection compared to traditional zinc anodes.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket brands.

Brand Part Number
Yamaha 6H1-45251-02-00
Yamaha 6H1-45251-03-00
Sierra 18-6091
Tecnoseal 01115
CMP CM6H14525102Z
GLM 12884

Engine & Model Compatibility

Confirm your engine model and year in the table below.

This anode is compatible with the following Yamaha outboard models.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 60TLR 60 2-Stroke 2001–2005 6H1-45251-02-00
Yamaha 70TLR 70 2-Stroke 2000–2009 6H1-45251-02-00
Yamaha 90TJR, 90TLR 90 2-Stroke 2000–2009 6H1-45251-02-00
Yamaha C60TLRY, C60TLRZ 60 2-Stroke 2000–2001 6H1-45251-02-00
Yamaha C70TLRY, C70TLRZ 70 2-Stroke 2000–2001 6H1-45251-02-00
Yamaha C90TLRY, C90TLRZ 90 2-Stroke 2000–2001 6H1-45251-02-00
Yamaha E60MLHY 60 2-Stroke 2000 6H1-45251-02-00
Yamaha E75MLHY 75 2-Stroke 2000 6H1-45251-02-00
Yamaha F75LA 75 4-Stroke 2012–2016 6H1-45251-02-00
Yamaha F75TLR 75 4-Stroke 2003–2011 6H1-45251-02-00
Yamha F80TJR, F80TLR 80 4-Stroke 1999–2003 6H1-45251-02-00
Yamaha F80TXR 80 4-Stroke 1999–2000 6H1-45251-02-00
Yamaha F90JA, F90LA 90 4-Stroke 2012–2016 6H1-45251-02-00
Yamaha F90TJR, F90TLR, F90TXR 90 4-Stroke 2003–2011 6H1-45251-02-00
Yamaha F90XA 90 4-Stroke 2012–2016 6H1-45251-02-00
Yamaha F100TLR, F100TXR 100 4-Stroke 1999–2003 6H1-45251-02-00
Yamaha F115JB, F115LB, F115XB 115 4-Stroke 2014–2016 6H1-45251-02-00
Yamaha LF115XB 115 4-Stroke 2014–2016 6H1-45251-02-00
Yamaha VF115LA 115 4-Stroke 2015 6H1-45251-02-00

Technical Specs

Product Type
Bar Anode (Transom Bracket Anode)
Installation
Bolt-on with mounting hardware
Material
Marine Grade Aluminum Alloy
Dimensions
Length: 203.2 mm (8"), Width: 35 mm (1-3/8"), Thickness: 19 mm (3/4")
Mounting Holes
188.9 mm center-to-center (7-7/16")
Weight
0.4 kg (0.88 lbs) to 1.0 kg (2.2 lbs)
Fitting Type
Bolts with washers
Working Environment
Fresh or salt water
Other Technical Attributes
Aluminum alloy provides longer lasting protection than zinc in both fresh and salt water environments

What’s in the Box

  • 1 x Aluminum Alloy Anode (6H1-45251-02-00)

Installation Notes

  1. Before starting, disconnect the engine's battery cables to prevent accidental starting.
  2. Locate the existing transom bracket anode on your outboard motor. It is typically a small, rectangular metal bar bolted to the bracket.
  3. Unscrew the mounting bolts holding the old anode in place and remove it. You may need to clean the area if there is significant corrosion or buildup.
  4. Thoroughly clean the mounting surface on the engine bracket to ensure a solid electrical connection. A bare metal-to-metal contact is essential for the anode to work correctly.
  5. Position the new anode onto the bracket, aligning the bolt holes.
  6. Install and securely tighten the new mounting bolts. Do not over-torque.
  7. Once the new anode is firmly in place, you can reconnect the battery cables.

Troubleshooting & FAQ

Will this anode fit my specific Yamaha model?

This anode is designed for a wide range of Yamaha 40-130 HP outboards from 1999–2016. Please review the detailed "Engine & Model Compatibility" table and cross-reference your engine's model and year to ensure a perfect match.

Is aluminum better than zinc for my engine?

Aluminum alloy anodes offer broader protection than zinc. They are effective in fresh, brackish, and salt water, whereas zinc is primarily for saltwater use and can become inactive in fresh water. Aluminum also provides longer-lasting protection, reducing the frequency of replacement.

How do I know when it's time to replace my anode?

You should inspect your anodes at least once a year or every 100 hours of use. We recommend replacement when the anode is approximately 50% corroded or visibly eroded, pitted, or crumbling. Losing half its mass significantly reduces its ability to protect your engine.

What are the signs of a failing anode?

A failing or depleted anode will not show much change, but you will notice accelerated corrosion on other metal parts of your engine, such as the propeller, gearcase, or transom bracket. If you see new or worsening pitting and galvanic corrosion on these components, your anode is likely not working.

Does this anode come with mounting bolts?

The package contains the anode itself. While the anode is designed to be installed with bolts and washers, the input data does not confirm their inclusion in this specific package. You may need to reuse your existing hardware if it is in good condition, or source appropriately sized bolts separately.

What is the difference between this and a genuine Yamaha part?

This is a high-quality aftermarket part designed to meet or exceed OEM specifications for fit, material, and performance. While it is not branded as a Yamaha OEM part, it offers a comparable level of protection and is manufactured in a certified facility to ensure quality and reliability at a better value.

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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