Anode kits are essential for protecting outboard engines, sterndrives, and other submerged boat components from galvanic corrosion.
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1-2 weeks delivery time The Osculati 43.554.10 magnesium leg anode is a direct-fit replacement for Volvo Penta 3855411-2, engineered for Duo Prop sterndrive legs operating in freshwater. Manufactured from high-activity magnesium alloy, it guarantees superior cathodic protection, weighs approx. 500 g, and installs using OEM hardware with no modifications, ensuring reliable defence against galvanic corrosion for submerged drive components.
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$ 59.29
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1-2 weeks delivery time The Osculati 43.554.13 zinc anode is compatible with Volvo Penta Duo Prop drives using OEM part numbers 3588746, 3588748, and 3588750. Designed to protect submerged metal components from galvanic corrosion in saltwater, this anode is cast from high-purity zinc and ensures a precise OEM fit. Installation is quick and secure, with no modifications required.
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$ 80.15
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1-2 weeks delivery time The Osculati 43.554.33 aluminium anode is a direct replacement for Volvo Penta 3588746, 3588748, and 3588750, designed for DP (Duo Prop) sterndrive systems. Made from high-purity aluminium, this anode delivers efficient and long-lasting galvanic protection in saltwater and brackish water. It ensures a perfect fit and installs easily using OEM hardware.
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$ 47.60
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1-2 weeks delivery time The Osculati 43.554.34 magnesium anode is a direct-fit replacement for Volvo Penta part numbers 3588746, 3588748, and 3588750, specifically designed for DP series sterndrives. Made from high-purity magnesium, this anode provides superior galvanic protection in freshwater environments, where aluminium or zinc anodes would be less effective. Engineered to OEM dimensions, it ensures perfect fitment and fast installation. Ideal for boats operating on lakes or rivers where magnesium is the preferred anode material.
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$ 50.51
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1-2 weeks delivery time The Osculati 43.554.14 zinc anode is a direct-fit replacement for Volvo Penta Duo Prop parts 3589875 and 3589876, engineered for corrosion protection of DP sterndrive components in saltwater environments. Cast from high-purity zinc and shaped for perfect compatibility, this anode ensures efficient galvanic shielding and installs easily using original hardware.
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$ 76.16
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1-2 weeks delivery time The Osculati 43.554.44 aluminium anode is a precision replacement for Volvo Penta DP sterndrive components with OEM reference numbers 3589875 and 3589876. Designed for use in saltwater environments, it provides durable and efficient protection against galvanic corrosion. Made from a high-grade aluminium alloy, it is lighter than zinc and compliant with modern environmental standards. The anode matches OEM geometry for a secure and hassle-free installation.
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$ 45.29
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1-2 weeks delivery time The Osculati 43.554.54 magnesium anode is a direct OEM replacement for Volvo Penta DP sterndrive components with part numbers 3589875 and 3589876. Specifically designed for freshwater applications, this anode provides fast-acting and effective galvanic corrosion protection. Made of high-purity magnesium, it is ideal for low-conductivity water where aluminium and zinc anodes are less efficient. The part is manufactured to match OEM specifications for precise fit and easy installation.
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$ 47.96
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1-2 weeks delivery time The Osculati 43.550.01 aluminium rod anode is designed to protect Volvo Penta sterndrive models 250, 270, and 280 from galvanic corrosion. Replacing OEM part 832598-7, this bolt-on anode is installed in the exhaust outlet or lower drive housing. Made from high-performance aluminium alloy, it is optimized for saltwater and brackish conditions, offering a durable, lightweight, and environmentally friendly alternative to traditional zinc anodes.
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$ 33.67
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1-2 weeks delivery time The Osculati 43.550.02 magnesium rod anode is designed to protect Volvo Penta 250, 270, and 280 sterndrive systems in freshwater environments. It directly replaces OEM reference 832598-7 and installs easily in the designated exhaust or cooling passages. Magnesium provides the highest electrochemical activity of all sacrificial materials, making this anode ideal for maximum protection in low-conductivity waters such as lakes and rivers.
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$ 38.44
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1-2 weeks delivery time The Osculati 43.549.15 aluminium leg anode is a direct replacement for Volvo Penta DPX sterndrive units, matching OEM reference 873395-8. Engineered from high-purity aluminium alloy, it offers long-lasting galvanic protection in salt and brackish waters. Designed to fit the lower unit of the drive leg, this anode effectively shields submerged metallic surfaces from electrochemical corrosion.
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$ 32.50
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1-2 weeks delivery time The Osculati 43.549.25 magnesium leg anode is a direct-fit replacement for Volvo Penta DPX sterndrive systems, corresponding to OEM part number 873395-8. Specifically formulated for use in freshwater environments, this anode is installed on the drive leg to prevent galvanic corrosion. Magnesium provides the most active protection among sacrificial metals, ideal for safeguarding saildrive and sterndrive components in low-conductivity waters.
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$ 29.39
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1-2 weeks delivery time The Osculati 43.531.01 is a zinc anode specifically designed for Volvo Penta Duo Prop propulsion systems, directly replacing OEM reference 876138. With critical dimensions of 111 mm width, 30 mm thickness, 146 mm overall length, and 85 mm bolt spacing, it ensures precise fitment and full electrochemical protection of the sterndrive hub. Manufactured from high-grade zinc alloy, this anode is optimized for performance in seawater applications.
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$ 37.42
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1-2 weeks delivery time The Osculati 43.531.10 aluminium anode is a direct-fit replacement for Volvo Penta Duo Prop drive systems, corresponding to OEM reference 876138. With key dimensions of 111 × 30 × 146 mm and a bolt spacing of 85 mm, it offers precision alignment and full sacrificial protection. Aluminium alloy provides extended service life, reduced environmental impact, and excellent performance in salt and brackish water environments.
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$ 28.81
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1-2 weeks delivery time The Osculati 43.531.11 magnesium anode is engineered for Volvo Penta Duo Prop sterndrives and directly replaces OEM part 876138. With key dimensions of 111 mm width, 30 mm thickness, 146 mm total length, and 85 mm bolt spacing, this anode ensures perfect fit and full protection. Magnesium provides the most active galvanic protection, making it ideal for use in freshwater applications where zinc or aluminium would be less effective.
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$ 33.74
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1-2 weeks delivery time The Osculati 43.535.00 is a zinc anode kit designed for Volvo Penta saildrives equipped with 2- or 3-blade propellers, directly replacing OEM part 3858399. With core dimensions of 87 mm (C), 65 mm (D), 30 mm height (B), and 15 mm central bore (A), this anode offers precise fitment and robust corrosion protection. Built for saltwater operation, it shields the saildrive and propeller hub from galvanic damage, ensuring reliable long-term performance.
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$ 44
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1-2 weeks delivery time The Osculati 43.535.10 is a high-efficiency aluminium anode kit designed for Volvo Penta saildrives equipped with 2- or 3-blade folding propellers, and directly replaces OEM part 3858399. With an outer diameter of 87 mm, center hole of 15 mm, and bolt circle of 65 mm, this lightweight and environmentally friendly anode ensures complete galvanic protection in both salt and brackish water. Its ring design fits securely under the propeller hub and provides reliable long-term performance.
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$ 22.61
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1-2 weeks delivery time The Osculati 43.535.11 is a magnesium ring anode kit engineered for Volvo Penta saildrives with 2- or 3-blade folding propellers. Fully compatible with OEM part 3858399, it features a 15 mm center bore, 30 mm height, 87 mm outer diameter, and 65 mm bolt circle. Magnesium is the most active anode material, making it the ideal choice for vessels operating in freshwater where conductivity is low and maximum galvanic protection is required.
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$ 46.21
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1-2 weeks delivery time The Osculati 43.535.01 zinc anode is a dedicated solution for Volvo Penta saildrives fitted with 4-blade folding propellers, replacing OEM reference 3584442. With key dimensions of 97 mm outer diameter, 32 mm height, 15 mm center bore, and 82 mm bolt circle, this ring-style anode provides complete circumferential corrosion protection in saltwater conditions. It ensures the preservation of aluminum and stainless steel components subjected to galvanic currents around the saildrive output hub.
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$ 62.97
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1-2 weeks delivery time The Osculati 43.555.00 zinc anode pair is a direct OEM replacement for Volvo Penta part number 852018-1, designed for use on a variety of sterndrive and transom applications. Made from high-grade zinc alloy, these anodes deliver reliable galvanic protection in saltwater environments, where zinc remains the standard. Supplied as a pair, they are engineered to match original dimensions for fast and secure installation.
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$ 17.48
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1-2 weeks delivery time The Osculati 43.553.00 zinc anode is a direct replacement for Volvo Penta 872793, designed for the leg section of DPX sterndrive units. Made of high-purity zinc, it provides effective cathodic protection for submerged metal components in saltwater conditions. Precision-cast to OEM specifications, this anode ensures perfect fit and reliable performance. Weight: approx. 1.05 kg; suitable for long-term use with standard mounting configuration.
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$ 16.70
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What is an outboard engine anode, and how does it protect a motor from galvanic corrosion?
An outboard engine anode is a sacrificial metal component, such as a trim tab anode or shaft anode, designed to protect the motor from galvanic corrosion by attracting corrosive elements in the water. Installed on parts like the motor's ventilation plate, transom bracket, or propeller shaft, the anode corrodes instead of critical engine components, extending the lifespan of the outboard motor, especially in saltwater and brackish environments. Regular anode replacement ensures continuous protection for the boat motor and other submerged parts.
What is the importance of regularly replacing outboard motor anodes for corrosion protection?
Regularly replacing outboard motor anodes is essential to prevent galvanic corrosion, which can damage critical components like the engine, propeller, and transom bracket. Sacrificial anodes, such as bar anodes, trim tab zinc anodes, and ring anodes, corrode instead of the motor, protecting metal parts from deterioration in saltwater, brackish water, and freshwater. Using the correct alloy anode ensures long-term protection for outboards and boat zinc components, extending the engine’s lifespan and maintaining performance.
What factors determine the choice between aluminum, magnesium and zinc anode for boats?
The choice between zinc, aluminum, and magnesium anodes depends on the water environment where the boat operates. Zinc anodes are ideal for saltwater, aluminum anodes provide effective protection in both saltwater and brackish water, while magnesium anodes are best suited for freshwater. Using the correct anode ensures that essential components like outboard engines, transom brackets, and skegs are protected from galvanic corrosion, extending the lifespan of boat anodes and motor parts.
Additionally, proper maintenance of the cooling system, including timely Honda Impeller Replacement, helps prevent overheating and ensures efficient engine operation.