Martyr Aluminum Anode Kit Volvo Penta 290 Dual Prop CMT-290DPKITA
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The Martyr CMT-290DPKITA is an aluminum anode kit for Volvo Penta 290 Dual Prop / 290DP sterndrive applications. It is designed to provide sacrificial corrosion protection for key underwater drive components and is commonly listed as a complete kit for saltwater and brackish water service. Current fitment references identify this kit for Volvo Penta 290 Duoprop outdrives and describe it as a complete corrosion-protection set for those drives.
This kit is commonly listed as containing one CM875821A prop shaft / ring anode and one CM852835A transom shield / bar anode, along with mounting hardware. That makes it a practical replacement set when refreshing anode protection across the drive instead of replacing only one worn piece at a time.
Key Features
- Aluminum anode kit for Volvo Penta 290 Dual Prop / 290DP drives
- Designed for saltwater and brackish water use
- Common kit contents: CM875821A and CM852835A
- Mounting hardware commonly listed as included
- Helps protect expensive sterndrive components from galvanic corrosion
- Complete kit format for routine drive anode service
Engine Compatibility
Fits Volvo Penta 290 Dual Prop / 290DP sterndrive applications. Current fitment references also associate this kit with 290DP stern drives, and one listing specifically notes compatibility with DP-C1, DP-D1, DP-E, DP-G, and DP-S variants. Because older Volvo Penta drives often remain in service for many years and may have mixed service history, fitment should still be confirmed against your exact drive model and existing anode layout before ordering.
Serial Number Fitment Notice
Please verify fitment by Volvo Penta drive model and serial number before ordering. This is the safest way to confirm the correct kit, especially on older Duo-Prop drives where prior repairs or mixed replacement parts may affect what is currently installed. Matching by the full kit number CMT-290DPKITA / CM290DPKITA and the included anode references is recommended.
When This Part Needs Replacement
Replace the kit when the installed anodes are heavily wasted, pitted, cracked, loose, or reduced enough that they are no longer providing effective sacrificial protection. Sterndrive anodes should be checked regularly during haul-out and routine service intervals, especially on boats kept in saltwater or brackish water.
Installation Notes
Install the replacement anodes on clean bare-metal contact surfaces and do not paint them. This kit is commonly listed with mounting hardware included, which helps simplify replacement during scheduled maintenance. Before installation, confirm that the included components match the anodes currently fitted to your drive.
Alternate / Superseded Part Numbers
- CM290DPKITA
- 875821 / CM875821A
- 852835 / CM852835A
Parts Desk Insight
A complete anode kit is often the better buy on older Duo-Prop drives because corrosion protection works best when the system is maintained evenly across the drive. An interesting detail with this kit is that the two included anodes protect different areas of the drive, which is why replacing the set together can be smarter than changing only the most obviously worn piece.
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.
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