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Mercruiser Anodes: anti-corrosion protection for your engine

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Mercruiser Anodes: anti-corrosion protection for your engine

Anodes for Mercruiser engines: Alpha One and Bravo stern drives

Essential for preventing galvanic corrosion, sacrificial anodes act as the shield for your Mercruiser sterndrive. At DAM Marine, we offer a carefully selected range of anodes and complete kits suited to every engine generation (Alpha One, Bravo). Whether you navigate in fresh, salt or brackish water, discover how to preserve the life of your engine with the right alloy (zinc, aluminium or magnesium) and our expert advice.

DAM Marine's catalogue covers all major sterndrive families so you can easily find your Mercruiser anode. Whether you own an older or more recent model, our range is structured to meet the specific requirements of each marine engine in the Mercury Mercruiser range.

Alpha One models: this iconic series is divided into two distinct categories. It is crucial to distinguish generation I, fitted to older boats, from the more modern generation II. Each version requires a specific anode to guarantee optimal protection for your Mercruiser sterndrive.
Bravo series models: designed for higher performance, this range includes Bravo I, Bravo II and Bravo III sterndrives. These propulsion systems often require a complete anode kit to effectively protect the twin propellers or reinforced transmissions typical of the Mercruiser Bravo.
To make it easier to identify the exact replacement part, we systematically provide the manufacturer's original OEM references, such as 888756Q03 or 888761K01. This precision ensures perfect compatibility with your existing Alpha Bravo equipment.

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10 item(s)

ALU ANODE BRAVO 3 MERCRUISER BEFORE 2004

RÉF. 00196A | PERFORMANCE METALS PRODUCTS

Propeller shaft end refill anode for Mercruiser Bravo 3 outdrive before 2004 which did not initially have this anode but on which kit 10195A was installed.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€19.20 VAT included

€16.00 VAT excluded

ALUMINUM ANODE MERCRUISER PROPELLER NUT

RÉF. 00163A | PERFORMANCE METALS PRODUCTS

Propeller shaft end anode for Mercruiser BRAVO 3 outdrive after 2003.

Included in the kit: 10165A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€16.56 VAT included

€13.80 VAT excluded

ALUMINUM ANODE PLATE BRAVO MERCRUISER

RÉF. 00046A | PERFORMANCE METALS PRODUCTS

Cavitation plate anode for a Mercruiser Bravo type outdrive.

Included in kit: 10060A - 10061A - 10165A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€24.60 VAT included

€20.50 VAT excluded

ANODE ALU BLOC MERCRUISER

RÉF. 00045A | PERFORMANCE METALS PRODUCTS

Platinum anode fixed to the trim oil distributor of a Mercruiser Alpha One base.

Included in kit: 10059A - 10205A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€23.40 VAT included

€19.50 VAT excluded

ANODE ALU BRAVO 3 MERCRUISER

RÉF. 00268A | PERFORMANCE METALS PRODUCTS

Flat daggerboard type base anode for Mercruiser bravo 3 base.

Anode not having the thread unlike 00049A.

Included in kit: 10165A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€19.74 VAT included

€16.45 VAT excluded

ANODE ALU HELICE MERCRUISER

RÉF. 00043A | PERFORMANCE METALS PRODUCTS

Anode for propeller diabolo on Mercruiser Alpha One G2 and Vazer bases.

Included in kit 10059A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€22.20 VAT included

€18.50 VAT excluded

MERCRUISER ALUMINUM CYLINDER ANODE

RÉF. 00047A | PERFORMANCE METALS PRODUCTS

Cylinder anode for Mercruiser Bravo outdrive.

Included in kit: 10165A - 10061A - 10060A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€14.94 VAT included

€12.45 VAT excluded

MERCRUISER ALUMINUM CYLINDER ANODE

RÉF. 00042A | PERFORMANCE METALS PRODUCTS

Anode for Mercruiser Alpha One G2 and Bravo XR base cylinder.

Included in kit 10059A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€11.96 VAT included

€9.97 VAT excluded

MERCRUISER PLATE ALUMINUM ANODE

RÉF. 00041A | PERFORMANCE METALS PRODUCTS

Anode plate for Mercruiser Alpha One G2 base.

Included in kit 10059A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€25.20 VAT included

€21.00 VAT excluded

MERCURY HELIX ALUMINUM ANODE

RÉF. 00048A | PERFORMANCE METALS PRODUCTS

Mercruiser Bravo type base diabolo anode.

Included in kit: 10060A.

Livraison express → Thursday 16 July

Livraison classique → Monday 20 July

Commandez dans les

00 h 00 m 00 s

Disponible

€17.70 VAT included

€14.75 VAT excluded

10 item(s)

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Frequently asked questions (FAQ)

What exactly is an anode used for on a Mercruiser engine?

The anode is a sacrificial metal part specifically designed to attract electrochemical corrosion. Instead of attacking the vital and expensive components of your sterndrive (such as the stainless steel propeller, transmission shaft or housing), the galvanic current eats away at this softer metal. It deteriorates and gradually dissolves in the water to preserve the structural integrity of your submerged Mercury engine throughout the boating season.

Can I mix different anode metals on my boat?

Mixing protective alloys on the same hull is strongly discouraged. For example, installing both zinc and aluminium protection on the same transmission completely cancels the effectiveness of the galvanic protection system. This unfortunate mix unbalances conductivity and concentrates marine corrosion on the least protected part of your boat, causing rapid and irreversible damage to the propulsion structure.

Zinc, aluminium or magnesium: which metal should you choose for your Mercruiser?

Choosing the right material for your anodes is a decisive step in ensuring the longevity of your marine engine. This choice is not random: it depends exclusively on the type of water in which your boat operates. Choosing the wrong alloy can make the anode completely ineffective, exposing your sterndrive to rapid destruction by electrolysis.

The zinc anode is the standard, historic option for boaters who navigate exclusively in marine environments. If your boat remains moored year-round in a saltwater harbour, zinc offers excellent electrochemical reactivity to capture corrosion before it attacks vital propulsion components.

The aluminium anode is now the universal solution par excellence. This modern alloy performs extremely well in salt, brackish or fresh water. Choosing aluminium is particularly recommended if you often change bodies of water, while benefiting from a service life that is generally longer than that of traditional alloys.

Finally, magnesium anodes are strictly reserved for fresh-water environments (lakes, rivers and waterways). In these low-conductivity waters, it is the only metal active enough to perform its sacrificial role. Be careful: using magnesium at sea would cause it to disintegrate in just a few days.

Metal	Recommended navigation environment	Main use
Zinc anode	Saltwater	Exclusive sea navigation.
Aluminium anode	Saltwater, freshwater and brackish water	Versatile use and excellent service life.
Magnesium anode	Freshwater, lakes and rivers	Strict inland waterway navigation.

How can you tell if an anode is worn out, and when should it be changed?

The wear of a plate anode or any other sacrificial element is a normal process that proves the system is working. However, it is vital for the health of your Mercruiser sterndrive to monitor this degradation carefully. Delaying the replacement of your protective parts can lead to repairs whose price is excessive compared with the cost of basic maintenance.

The absolute rule in boating is to replace the equipment immediately when it shows a 50% loss of material compared with its original volume. Even if the part still appears complete, its ability to capture galvanic currents drops sharply beyond this critical threshold.

A regular visual inspection should therefore be an integral part of your checking routine. It is recommended to inspect each Mercury anode before every launch or extended trip, looking for signs of excessive deterioration or pronounced oxidation (white powder or a heavily eaten surface).

Systematic replacement should be carried out at least once a year, ideally during winterisation or the annual service of your engine. If your boat stays permanently afloat, changing twice a year may be necessary depending on how aggressive the water is.

Expert advice: never apply paint, grease or antifouling treatment to your anodes. These products create an insulating barrier that prevents the alloy from dissolving, making the protection completely ineffective.

Going further: maintenance kits and compatible Mercruiser parts

To guarantee calm and comprehensive maintenance, DAM Marine has developed solutions that group together all the essential components for your propulsion. Choosing a complete package is often more economical than buying parts individually, offering excellent value for money.

We recommend purchasing a complete anode kit for perfect renewal of your protection. Each anode kit generally includes trim tab elements, the cavitation plate, ram protections and all required fasteners for immediate installation.
Explore our other sections to discover the complete maintenance ecosystem: visit our Mercruiser maintenance kits section to find cooling impellers or bellows, and browse our propeller range to maximise your navigation performance.

Checking compatibility with your Mercruiser sterndrive

Making sure the selected Mercruiser anode perfectly matches your mechanics is essential. Fastening systems vary considerably from one decade to another. To help you validate part compatibility, here are the key years to consider when ordering.

To identify the generation of your Alpha One transmission: generation I broadly covers models manufactured between 1984 and 1990. Generation II, on the other hand, covers all models produced from 1991 to today and requires a specific mounting kit.
For owners of Bravo range equipment, and especially Bravo III sterndrives, close attention must be paid to the year of manufacture. A major technical distinction exists for models machined from 2004 onward, as the location and shape of the cathodic protection were modified by the manufacturer.

Pre-purchase checklist

year of manufacture of the engine;
exact transmission model (Alpha or Bravo);
serial number check (often engraved on the housing);
comparison with the original reference shown on our product sheet.

Oil circuit

Upper Engine

Lower Engine

Exhaust

Electrical parts

Power steering and Steering

Mercruiser Anodes: anti-corrosion protection for your engine

Anodes for Mercruiser engines: Alpha One and Bravo stern drives

10 item(s)

ALU ANODE BRAVO 3 MERCRUISER BEFORE 2004

ALUMINUM ANODE MERCRUISER PROPELLER NUT

ALUMINUM ANODE PLATE BRAVO MERCRUISER

ANODE ALU BLOC MERCRUISER

ANODE ALU BRAVO 3 MERCRUISER

ANODE ALU HELICE MERCRUISER

MERCRUISER ALUMINUM CYLINDER ANODE

MERCRUISER ALUMINUM CYLINDER ANODE

MERCRUISER PLATE ALUMINUM ANODE

MERCURY HELIX ALUMINUM ANODE

Frequently asked questions (FAQ)

What exactly is an anode used for on a Mercruiser engine?

Can I mix different anode metals on my boat?

Zinc, aluminium or magnesium: which metal should you choose for your Mercruiser?

How can you tell if an anode is worn out, and when should it be changed?

Going further: maintenance kits and compatible Mercruiser parts

Checking compatibility with your Mercruiser sterndrive

Pre-purchase checklist