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 43.530.10 aluminium collar anode is designed as a direct-fit replacement for Volvo Penta Saildrive 110 systems, matching OEM reference 875812. With dimensions Ø106 × 43 mm, this anode provides full peripheral coverage for the drive shaft. Made from aluminum alloy to international standards, it delivers excellent corrosion protection in both brackish and saltwater environments, offering longer service life than traditional zinc in many marine conditions.
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€ 16,40
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1-2 weeks delivery time The Osculati 43.530.11 magnesium collar anode is a direct replacement for the Volvo Penta 875812, precisely designed for Saildrive 110 systems. With an outer diameter of 106 mm and a height of 43 mm, it offers full contact and effective corrosion protection for vessels operating in freshwater. Magnesium’s high electrochemical potential ensures superior anodic performance, making this anode ideal for protecting aluminum drive components from galvanic degradation in low-conductivity environments.
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€ 40,20
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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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€ 14,56
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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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€ 12,65
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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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€ 14,50
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1-2 weeks delivery time The Osculati 43.532.00 zinc anode is a two-piece collar designed for Volvo Penta saildrive systems, directly replacing OEM parts 3888305 and 3888306. With an outer diameter of 107 mm, this split-ring anode is engineered to surround the shaft housing and provide uniform sacrificial protection in saltwater environments. Made from high-purity zinc, it is ideal for preserving aluminum and steel components from galvanic corrosion under harsh marine conditions.
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€ 41,80
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1-2 weeks delivery time The Osculati 43.532.10 is a two-piece aluminium collar anode designed for Volvo Penta saildrive systems, replacing OEM references 3888305 and 3888306. With an external diameter of Ø107 mm, this anode delivers long-lasting galvanic protection in both saltwater and brackish conditions. Its lightweight, split design ensures easy installation around the saildrive shaft without disassembly, while the aluminium alloy provides excellent durability and lower environmental impact compared to zinc.
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€ 30,66
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1-2 weeks delivery time The Osculati 43.532.11 magnesium two-piece collar anode is a precision replacement for Volvo Penta saildrive models, corresponding to OEM references 3888305 and 3888306. With an outer diameter of Ø107 mm, this anode is optimized for use in freshwater environments. Magnesium’s high electrochemical activity makes it the most effective sacrificial material for low-conductivity waters, ensuring robust protection of aluminum and steel saildrive components.
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€ 74,76
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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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€ 11,51
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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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€ 15,14
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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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€ 8,91
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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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€ 14,82
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1-2 weeks delivery time The Osculati 43.535.13 magnesium anode kit is specifically engineered for Volvo Penta saildrives fitted with 4-blade folding propellers. As a direct replacement for OEM part 3584442, it features an outer diameter of 97 mm, 32 mm height, 15 mm center bore, and 82 mm bolt circle. Magnesium provides the highest level of anodic protection, making this ring anode the optimal choice for saildrive protection in freshwater environments with low conductivity.
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€ 15,91
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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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€ 14,91
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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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€ 13,16
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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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€ 15,33
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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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€ 18,73
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1-2 weeks delivery time The Osculati 43.551.00 zinc anode, equivalent to original Volvo Penta 852835-8, is designed for installation on the foot of Duo Prop drives to provide effective cathodic protection against galvanic corrosion. Manufactured from high-purity zinc for optimal performance in saltwater environments, this base anode features a 95 mm diameter and weighs 470 g. It fits directly in place of the OEM part with no modification required and ensures extended protection of submerged metal components throughout the boating season.
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€ 20,87
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1-2 weeks delivery time The Osculati 43.551.10 aluminium anode, a direct replacement for Volvo Penta 852835-8, is engineered for installation at the foot of Duo Prop drives to protect submerged components from galvanic corrosion. Made from high-quality aluminium for optimal use in brackish and saltwater conditions, this base anode has a diameter of 95 mm and weighs approximately 230 g. It is compatible with Volvo Penta sterndrives and installs easily without modification, ensuring long-lasting protection with minimal voltage loss.
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€ 13,31
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1-2 weeks delivery time The Osculati 43.551.11 magnesium anode, compatible with Volvo Penta 852835-8, is designed for Duo Prop foot installations to deliver maximum cathodic protection in freshwater environments. With a 95 mm diameter and approximately 190 g weight, this base anode ensures optimal sacrificial performance with a strong electrochemical potential. It installs easily without modification and is ideal for freshwater applications where zinc or aluminium anodes are not effective.
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€ 18,09
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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.