Volvo Penta 290 Series Anode Kit – Magnesium for Freshwater
Volvo Penta 290 Series Anode Kit – Magnesium for Freshwater is backordered and will ship as soon as it is back in stock.
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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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Volvo Penta 290 Series Anode Kit – Magnesium for Freshwater
Product Details
This Volvo Penta 290 Series Anode Kit – Magnesium for Freshwater (Replaces 875821, 852835) provides essential corrosion protection for motorboats with 290 series sterndrives operating exclusively in freshwater environments. The magnesium construction offers superior sacrificial protection compared to zinc or aluminum in these conditions.
This kit serves as a direct replacement for Corrosion Group KITVOLVODP290 and is dimensionally equivalent to aluminum versions such as Quicksilver 8M6007991 and Seachoice 50-95311.
- Direct bolt-on installation for easy replacement.
- Specifically engineered for maximum protection in freshwater.
- Kit includes all necessary stainless steel mounting screws.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Volvo Penta | 875821 | Collar Anode |
| Volvo Penta | 852835 | Block Anode |
| Corrosion Group | KITVOLVODP290 | Direct Replacement Kit (Magnesium) |
| Quicksilver | 8M6007991 | Comparable Aluminum Version |
| Seachoice | 50-95311 | Comparable Aluminum Version |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This anode kit is designed for the specified Volvo Penta sterndrive models operating in freshwater.
| Brand | Model | Application | Water Type | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | 290 Series | Sterndrive | Freshwater | 875821, 852835 | Complete kit for 290 Duo Prop |
| Volvo Penta | 290-DP | Sterndrive | Freshwater | 875821, 852835 | Fits DP-C1, DP-D1, DP-S, DP-E, DP-G variants |
Technical Specs
- Product Type
- Sacrificial Anode Kit
- Material
- Magnesium
- Application
- Freshwater environments
- Water Type
- Freshwater
- Compatible Drive
- Volvo Penta 290 Series
- Boat Type
- Motorboat, Sterndrive
- Installation
- Direct bolt-on replacement
- Includes Hardware
- Yes (mounting screws)
- Longevity
- Superior to zinc/aluminum in freshwater
- Product Dimensions
- 32.5 cm x 23.0 cm x 3.5 cm
- Weight
- 0.63 kg (1.38 lb)
What’s in the Box
- 1 x Collar Anode (Replaces OEM 875821)
- 1 x Block Anode for Gimbal Housing (Replaces OEM 852835)
- Mounting Screws (Stainless Steel)
Installation Notes
- Disconnect the boat's battery before starting work.
- Remove the old, corroded anodes from the sterndrive.
- Thoroughly clean the mounting surfaces on the drive, ensuring they are free of paint, glue, and corrosion for a good electrical connection.
- Securely fasten the new block and collar anodes using the provided mounting screws. Do not use thread locker.
- Ensure anodes are tight and have direct metal-to-metal contact with the drive.
- Once installation is complete, reconnect the battery.
Troubleshooting & FAQ
How do I know if this kit fits my drive?
This kit is specifically designed for Volvo Penta 290 Series sterndrives (including 290-DP models) used in freshwater. To ensure a perfect match, compare your existing anode part numbers to 875821 and 852835 and verify the visual appearance against our product images.
Why use magnesium instead of aluminum or zinc?
Magnesium provides superior galvanic corrosion protection in freshwater. Aluminum is best for brackish or salt water, and zinc is traditionally for saltwater. Using the wrong material will result in poor protection for your sterndrive.
How often should I replace my anodes?
Anodes should be inspected at least once a year and replaced when they are 50-60% consumed. Replacement frequency depends on water chemistry, usage, and electrical system integrity. Never paint anodes, as this stops them from working.
What are the signs of a failing anode?
Signs of failure include rapid or uneven corrosion, the anode completely disappearing, or a build-up of a white, chalky coating. If you notice new corrosion on your sterndrive components, your anodes are no longer providing protection and must be replaced immediately.
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.
Payment & Security
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