Anodes

Anodes for Boats

Boat anodes, also known as galvanic or sacrificial anodes, are essential components that protect metal parts of a boat from electrochemical corrosion.

Anode shaft 35 mm Anode shaft 35 mm 2
  • -50%
Last item in stock
Motor

Anode shaft 35 mm

0000076140
€6.10 €12.20
Anode shaft 35 mm
Shaft tip anode 45 Shaft tip anode 45 2
Last item in stock
Motor

Shaft tip anode 45

Ewincher
0001197854
€10.30
Shaft tip anode 45
Zinc Propeller Shaft Anode for Volvo Penta Popadrives AQ200 Zinc Propeller Shaft Anode for Volvo Penta Popadrives AQ200 2
Last item in stock
Motor

Zinc Propeller Shaft Anode for Volvo Penta Popadrives AQ200

Volvo
PRO19809
€19.65
Orbitrade Marine zinc node designed to replace Volvo part number 875809. The motor anode is supplied complete with screws. This ring anode is suitable for mounting on the drive shaft to provide protection against electrolytic corrosion. The zinc anode is suitable for Volvo Penta AQ200 sterndrive models.
Orbitrade 19018 Zinc Anode for Volvo Penta Folding... Orbitrade 19018 Zinc Anode for Volvo Penta Folding... 2
Last item in stock
Motor

Orbitrade 19018 Zinc Anode for Volvo Penta Folding Propellers

Volvo
PRO19018
€22.75
Orbitrade Marine zinc anode designed to replace Volvo part number 852018. This anode is for use with 2 blade folding propellers and is supplied with the required screws. The zinc anode is suitable for providing protection from electrolytic corrosion for the following Volvo Penta sterndrives: 110S, 120S, 120SB, 120S-D, S120C.
Kit de aislamiento para ánodo Kit de aislamiento para ánodo 2
Last item in stock
Water pumps and plumbing

Kit de aislamiento para ánodo

Marine Business
T30858
Outlet
€30.00
Kit de aislamiento para ánodo 310x65mm
Insulation kit for anode Insulation kit for anode 2
Last item in stock
Water pumps and plumbing

Insulation kit for anode

Marine Business
T30488
Outlet
From €30.00
Insulation kit for anode 
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    [name] => Anodes
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    [description] => <h2>Anodes for Boats</h2>
<p><strong>Boat anodes</strong>, also known as <strong>galvanic or sacrificial anodes</strong>, are essential components that protect metal parts of a boat from electrochemical corrosion.</p>
    [additional_description] => <h3>Function of Anodes</h3>
<p>The main function of anodes is to prevent corrosion. They should be replaced at least once per season, and more frequently in harsher marine conditions. Anodes are typically installed along the keel, rudder, or propeller shaft.</p>
<p><strong>Important</strong>: Never paint, brush, or grease the anodes! This would reduce their electrical conductivity with water, rendering them ineffective against corrosion. If your boat stays out of the water for long periods, oxidation may form (especially on aluminum anodes), reducing performance. In these cases, replacement is necessary.</p>
<h4>Anode Selection Chart (in kg), based on metal surface area to protect</h4>
<p>Metal surfaces in m² / Zinc anodes in kg</p>
<ul>
<li>5 to 10 m² → 5.5 kg</li>
<li>10 to 20 m² → 9.5 kg</li>
<li>20 to 30 m² → 18.0 kg</li>
<li>30 to 40 m² → 20.0 kg</li>
<li>40 to 50 m² → 25.0 kg</li>
</ul>
<h4>Types of Anodes</h4>
<ul>
<li>Shaft and rudder anodes</li>
<li>Propeller anodes</li>
<li>Thruster anodes</li>
<li>Mooring anodes</li>
<li>Engine anodes</li>
<li>Weld-on anodes</li>
<li>Bolt-on anodes</li>
<li>Distribution board anodes</li>
<li>Heat exchanger anodes</li>
<li>Aluminum anodes</li>
<li>Special anodes for aluminum boats</li>
</ul>
<p>Find a wide range of zinc, aluminum alloy, and magnesium anodes in our store to replace your hull and engine shaft anodes, whether for inboard or outboard motors.</p>
<h4>Available Anode Types</h4>
<ul>
<li><strong>Drive shaft anodes</strong>
<ul>
<li>Aluminum anodes</li>
<li>Magnesium anodes</li>
<li>Zinc anodes</li>
</ul>
</li>
<li><strong>Hull anodes</strong>
<ul>
<li>Aluminum hull anodes</li>
<li>Magnesium hull anodes</li>
<li>Zinc hull anodes</li>
</ul>
</li>
<li><strong>Outboard anodes</strong></li>
<li><strong>Propeller anodes</strong>
<ul>
<li>Aluminum anodes for propellers/shafts</li>
<li>Magnesium anodes for propellers/shafts</li>
<li>Zinc anodes for propellers/shafts</li>
</ul>
</li>
<li><strong>Bow and stern thruster anodes</strong></li>
<li><strong>Inboard anodes</strong></li>
<li><b>Saildrive/inboard-outboard anodes</b></li>
</ul>
    [meta_title] => Anodes for Boats | MercaNautic ⛵ 🌊
    [meta_description] => Boat anodes, also known as galvanic or sacrificial anodes, are essential components that protect metal parts of a boat from electrochemical corrosion ⛵ 🌊
    [meta_keywords] => Anodes
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    [id] => 918
    [image] => 
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Function of Anodes

The main function of anodes is to prevent corrosion. They should be replaced at least once per season, and more frequently in harsher marine conditions. Anodes are typically installed along the keel, rudder, or propeller shaft.

Important: Never paint, brush, or grease the anodes! This would reduce their electrical conductivity with water, rendering them ineffective against corrosion. If your boat stays out of the water for long periods, oxidation may form (especially on aluminum anodes), reducing performance. In these cases, replacement is necessary.

Anode Selection Chart (in kg), based on metal surface area to protect

Metal surfaces in m² / Zinc anodes in kg

  • 5 to 10 m² → 5.5 kg
  • 10 to 20 m² → 9.5 kg
  • 20 to 30 m² → 18.0 kg
  • 30 to 40 m² → 20.0 kg
  • 40 to 50 m² → 25.0 kg

Types of Anodes

  • Shaft and rudder anodes
  • Propeller anodes
  • Thruster anodes
  • Mooring anodes
  • Engine anodes
  • Weld-on anodes
  • Bolt-on anodes
  • Distribution board anodes
  • Heat exchanger anodes
  • Aluminum anodes
  • Special anodes for aluminum boats

Find a wide range of zinc, aluminum alloy, and magnesium anodes in our store to replace your hull and engine shaft anodes, whether for inboard or outboard motors.

Available Anode Types

  • Drive shaft anodes
    • Aluminum anodes
    • Magnesium anodes
    • Zinc anodes
  • Hull anodes
    • Aluminum hull anodes
    • Magnesium hull anodes
    • Zinc hull anodes
  • Outboard anodes
  • Propeller anodes
    • Aluminum anodes for propellers/shafts
    • Magnesium anodes for propellers/shafts
    • Zinc anodes for propellers/shafts
  • Bow and stern thruster anodes
  • Inboard anodes
  • Saildrive/inboard-outboard anodes
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