Mercury Bravo II & III Aluminum Anode Kit – Fits MerCruiser Stern Drives (Replaces 888761Q03, 97-888761K02)
Mercury Bravo II & III Aluminum Anode Kit – Fits MerCruiser Stern Drives (Replaces 888761Q03, 97-888761K02) 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
Product Details
This is a complete Mercury Bravo II & III Aluminum Anode Kit, specifically designed for MerCruiser Bravo II and Bravo III stern drives. Aluminum anodes are the recommended choice for providing superior corrosion protection in both salt water and brackish water environments, extending the life of your drive.
This kit serves as a direct replacement for Mercury/MerCruiser part numbers 888761Q03, 97-888761K02, and 888761Q01.
- Engineered for use in salt or brackish water.
- Designed for simple, direct replacement installation.
- Includes a full set of new mounting hardware for a complete service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
Brand | Part Number |
---|---|
Mercury/MerCruiser | 888761Q03 |
Mercury/MerCruiser | 97-888761K02 |
Mercury/MerCruiser | 888761Q01 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for the following MerCruiser models.
Brand | Model | OEM Part No. | Notes |
---|---|---|---|
MerCruiser | Bravo II Stern Drive | 888761Q03 | Aluminum anode for salt water use |
MerCruiser | Bravo III Stern Drive | 888761Q03 | Aluminum anode for salt water use |
Technical Specs
- Product Type
- Aluminum Anode Kit
- Application
- Bravo II & III Stern Drives
- Water Type
- Salt Water or Brackish Water
- Material
- Aluminum
- Installation
- Direct Replacement
- Package Type
- Kit
- Dimensions
- 28.0" L x 21.0" W x 5.0" H
- OEM Reference
- 888761Q03, 97-888761K02
- Other Technical Attributes
- Includes new mounting hardware (screws/bolts)
What’s in the Box
- Aluminum Anodes (Replaces 888761Q03)
- Mounting Hardware (screws/bolts)
Installation Notes
- Disconnect the vessel's battery before beginning work.
- Carefully locate and unbolt the old, depleted anodes from the stern drive.
- Thoroughly clean the mounting surfaces on the drive to ensure a clean, bare metal contact point.
- Align the new anodes and fasten them securely using the included mounting hardware.
- Confirm that each anode has a solid, direct electrical connection with the drive housing. Do not apply paint or sealant to anode surfaces or mounting points.
- Once all anodes are installed and tightened, reconnect the battery.
Troubleshooting & FAQ
What is the difference between aluminum and magnesium or zinc anodes?
Aluminum anodes are ideal for salt and brackish water. Zinc anodes are also for saltwater but are less effective in brackish. Magnesium anodes are only for use in fresh water and will corrode too quickly in salt or brackish environments, potentially leaving your drive unprotected.
How often should I inspect or replace my stern drive anodes?
Anodes should be inspected at least every 6 months and replaced when they are 50% consumed. The rate of corrosion depends heavily on water salinity, temperature, and electrical currents in your marina. More frequent checks are recommended in aggressive marine environments.
Will this kit fit any other MerCruiser drives, like an Alpha One?
No, this particular kit is specifically designed for the dimensions and requirements of Bravo II and Bravo III stern drives. Using the wrong anodes can result in improper fit and inadequate electrical protection.
What are the signs my anodes are failing or need replacement?
Visible signs include heavy pitting, crumbling, or the anode being reduced to about half its original size. A white, chalky coating can also indicate the anode is working, but rapid erosion means it is time for a replacement.
Is this an OEM part or an aftermarket replacement?
This listing is an aftermarket replacement (not OEM). It has been engineered to meet or exceed OEM-level specifications using comparable high-grade materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected to ensure quality and consistency.
What are your shipping speeds and costs?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most locations, with expedited options available at checkout where applicable.
What is the warranty and return policy on this part?
This product is covered by a 1-year warranty against manufacturing defects under normal use conditions. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items 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.