Martyr Anode – BRP / OMC / Johnson / Evinrude Outboard, Aluminum | Saltwater & Brackish (CM984547A)
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Martyr Anode – BRP / OMC / Johnson / Evinrude Outboard, Aluminum | Saltwater & Brackish (CM984547A)
The Martyr CM984547A is an aluminum sacrificial anode designed as a direct OEM-equivalent replacement for BRP, OMC, Johnson, and Evinrude outboard motors used in saltwater and brackish water environments. It replaces OEM part number 984547 and provides reliable galvanic corrosion protection at the corresponding anode position on the lower unit.
Aluminum is the correct anode material for saltwater and brackish water use, where it outperforms zinc in electrochemical activity and provides more effective galvanic protection. Martyr Anodes are manufactured to OEM-equivalent specifications, making this a trusted replacement for the factory anode.
Key Features
- Aluminum construction — correct material for saltwater and brackish water use
- Direct replacement for OEM part number 984547
- OEM-quality Martyr Anodes construction
- Reliable galvanic protection for BRP/OMC/Johnson/Evinrude outboard lower units
Compatible Applications
- BRP outboard motors — saltwater and brackish water use, OEM ref. 984547
- OMC outboard motors — saltwater and brackish water use, OEM ref. 984547
- Johnson outboard motors — saltwater and brackish water use, OEM ref. 984547
- Evinrude outboard motors — saltwater and brackish water use, OEM ref. 984547
Parts Desk Insights
This is a single aluminum anode for the 984547 position — the right choice when only this position needs replacement and the other lower unit anodes are still serviceable. Aluminum is the preferred material for saltwater and brackish water use, providing better galvanic protection than zinc in marine environments. If you operate in freshwater, a magnesium anode would be required instead. For the zinc version of this anode, see the Martyr CM984547Z Anode – BRP/OMC/Johnson/Evinrude, Zinc. For other BRP/OMC/Johnson/Evinrude individual anodes, see the Martyr CM393023A (Aluminum), Martyr CM393023M (Magnesium), Martyr CM393023Z (Zinc), Martyr CM123009Z (Zinc), Martyr CM397768Z (Zinc), Martyr CM398331A (Aluminum), Martyr CM398331Z (Zinc), Martyr CM5007089A (Aluminum), Martyr CM5007089M (Magnesium), Martyr CM5007089Z (Zinc), and Martyr CM984513Z (Zinc).
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.