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 43.554.44 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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€ 15,84
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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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€ 21,79
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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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€ 10,47
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1-2 weeks delivery time The Osculati 43.556.01 aluminium foot anode is a direct replacement for Volvo Penta DPI sterndrive models using OEM references 23520859 and 23520860. Designed to protect the lower unit (foot) from galvanic corrosion in saltwater environments, this anode is cast from high-quality aluminium alloy and shaped to OEM specifications. Lightweight, durable, and environmentally compliant, it offers reliable protection without compromising hydrodynamics.
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€ 49,97
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1-2 weeks delivery time The Osculati 43.558.01 magnesium foot anode is designed to replace Volvo Penta OEM parts 23520859 and 23520860 for DPI sterndrive systems operating in freshwater environments. Made from high-purity magnesium, this anode offers fast-acting and highly effective corrosion protection for the drive unit's lower section. Its OEM-matched design ensures easy installation and optimal performance in low-conductivity waters such as lakes and rivers.
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€ 50,41
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1-2 weeks delivery time The Osculati 43.559.01 magnesium anode kit is designed for Volvo Penta DPI sterndrive systems operating in freshwater environments. It includes two essential magnesium anodes — OEM equivalents 23520860 (foot anode) and 852835-8 (steering fork anode). This complete set provides full lower-unit protection against galvanic corrosion, with magnesium delivering fast and efficient performance in low-conductivity water. Precision-matched to OEM dimensions for quick and accurate installation.
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€ 84,15
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1-2 weeks delivery time The Osculati 43.538.02 aluminium anode kit is a complete OEM-equivalent set designed for Yanmar sterndrive systems, replacing a total of six anodes under part numbers 196350-02550, 196350-02570, 196350-09910, 196350-07360 (×2) and 196350-02350. Ideal for saltwater applications, this kit ensures comprehensive galvanic corrosion protection for key components such as the gear housing, cavitation plate, trim tab, and transom area. Manufactured from marine-grade aluminium, it offers lightweight, efficient protection and complies with international environmental regulations.
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€ 76,74
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1-2 weeks delivery time The Osculati 43.542.00 circular anode is a direct replacement for Yanmar OEM part 27210-200300, designed to protect the engine's cooling system and metal components from galvanic corrosion. Made from high-quality sacrificial material, it ensures long-term reliability in saltwater environments. This anode features OEM-matched dimensions and mounting interface, allowing quick and secure replacement during routine maintenance.
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€ 6,76
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1-2 weeks delivery time The Osculati 43.544.03 zinc collar anode is a direct replacement for Yanmar OEM part 19642002652, specifically designed for sail-drive units operating in saltwater environments. This collar-style anode provides vital protection for the lower drive assembly by preventing galvanic corrosion between dissimilar metals. Manufactured from high-grade zinc, it delivers reliable, long-lasting performance and fits precisely to OEM specifications.
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€ 23,67
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1-2 weeks delivery time The Osculati 43.544.05 zinc anode kit is a direct replacement for Yanmar OEM part 119773-92600, suitable for use with Yanmar 6LP, 6LY, and 4LH series marine engines. Designed for saltwater protection, this complete kit includes zinc anodes tailored to protect internal cooling passages and metal surfaces from galvanic corrosion. Manufactured to OEM specifications, it ensures proper fit, optimal performance, and extended engine lifespan.
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€ 70,21
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1-2 weeks delivery time The Osculati 43.546.01 zinc leg anode is a split (openable) anode designed for Yanmar saildrive models SD20 through SD60, replacing OEM part 19644002660. Specifically intended for saltwater applications, this collar-style anode clamps securely around the leg of the saildrive to prevent galvanic corrosion. Its openable design allows for quick installation without shaft disassembly, while maintaining OEM fit and performance.
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€ 37,63
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1-2 weeks delivery time The Osculati 43.546.02 aluminium leg anode is an openable split anode that fits Yanmar saildrive models SD20 to SD60, directly replacing OEM part 19644002660. Designed for saltwater protection, this lightweight and environmentally friendly aluminium version offers excellent corrosion resistance and performance longevity. Its hinged design allows for quick installation without removing the propeller shaft, and it precisely matches OEM geometry for reliable operation.
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€ 37,05
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1-2 weeks delivery time The Osculati 43.546.03 magnesium leg anode is a direct-fit, openable anode for Yanmar SD20 to SD60 saildrive units, replacing OEM part 19644002660. Designed specifically for use in freshwater environments, magnesium provides superior reactivity in low-conductivity conditions, where zinc and aluminium are less effective. The split design allows for fast installation without shaft removal, offering excellent corrosion protection for your saildrive leg.
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€ 35,27
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1-2 weeks delivery time The Osculati 43.426.10 outboard leg anode is designed for 50 HP 4-stroke outboard engines, offering effective protection against galvanic corrosion in saltwater environments. This anode is mounted on the lower unit (leg) of the engine and is made from high-quality zinc alloy, ensuring long-lasting performance. Suitable for a wide range of outboard brands and models with compatible geometry, it helps protect vital underwater metal components and extends the engine’s lifespan.
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€ 12,50
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1-2 weeks delivery time The Osculati 43.545.00 threaded zinc anode is designed for use on GM-based marine engines, protecting internal components such as heat exchangers and cooling passages from galvanic corrosion. This anode features a 3/4" BSPT threaded plug, with a 20 mm diameter × 80 mm anode body plus 29 mm threaded section, allowing direct replacement in compatible cooling circuits. Made from high-purity zinc, it's ideal for saltwater applications where electrolysis risks are high.
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€ 16,17
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1-2 weeks delivery time The Osculati 43.560.00 zinc plug anode is designed to protect Renault marine engines from internal galvanic corrosion. Featuring a thread size of 18×1.5 mm and an anode body Ø15×35 mm, this plug-type anode is typically installed in heat exchangers or water jackets. It offers essential sacrificial protection for saltwater cooling systems, prolonging engine life by neutralizing corrosive electrical currents inside the block.
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€ 11,09
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1-2 weeks delivery time The Osculati 43.562.00 zinc plug anode is a compact threaded anode for Renault marine engines, featuring a 16×1.5 mm metric thread and Ø11 mm × 33 mm zinc body. Ideal for protecting internal engine cooling circuits—such as heat exchangers and cylinder jackets—this anode provides reliable sacrificial protection against galvanic corrosion in saltwater environments. Its small form factor and precise threading ensure a perfect OEM-style fit.
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€ 13,08
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1-2 weeks delivery time The Osculati 43.600.05 convex plate anode is designed for use on Renault marine systems, offering robust galvanic corrosion protection for external metallic surfaces. With overall dimensions of 80×55 mm and a bolt spacing of 50 mm, it features a slightly convex shape to match curved hull or transmission surfaces. Weighing 180 g, this high-purity zinc anode is ideal for saltwater environments and ensures long-term durability and protection.
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€ 13,87
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1-2 weeks delivery time The Osculati 43.650.01 zinc anode is engineered for use on Arneson surface drive transmissions, offering sacrificial protection in saltwater environments. Weighing 0.54 kg, this anode is specifically shaped to fit transmission housings exposed to galvanic currents. Manufactured from high-purity zinc alloy, it ensures long-lasting corrosion resistance in high-performance marine propulsion systems.
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€ 21,08
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1-2 weeks delivery time The Osculati 43.650.03 zinc anode is a heavy-duty sacrificial anode designed for Arneson surface drive transmissions, ensuring optimal galvanic protection in saltwater environments. Weighing 1.56 kg, it is ideal for high-powered marine propulsion systems where larger anode mass is required for extended corrosion resistance. Engineered for precision fit and long service life, it is also available in a lighter aluminium version (0.610 kg).
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€ 42,66
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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.