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 43.346.01 – Volvo Penta SX-A DPS Aluminium Anode Kit includes two lightweight aluminium sacrificial anodes (3841427 and 3883728), compatible with SX-A and DPS sterndrives. Designed for brackish and freshwater environments, this kit offers effective galvanic protection while reducing weight compared to traditional zinc anodes. Ideal for modern marine applications with eco-conscious performance and OEM-grade fit.
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$ 72.44
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1-2 weeks delivery time The Osculati 43.346.02 – Volvo Penta SX-A DPS Magnesium Anode Kit includes two OEM-fit magnesium anodes (3841427 and 3883728) specifically designed for sterndrive units operating in freshwater. Magnesium anodes offer the highest electrochemical activity, ensuring maximum corrosion protection for Volvo Penta SX-A and DPS drives where zinc and aluminium are less effective.
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$ 95.92
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1-2 weeks delivery time The Osculati 43.552.01 aluminium anode kit includes two OEM-equivalent components: 23520860 (hydraulic steering fin anode) and 852835-8 (Duo Prop foot anode), specifically designed for Volvo Penta DPI sterndrive units. Manufactured from high-grade aluminium for optimal protection in salt and brackish water, this kit ensures complete cathodic coverage of critical submerged parts. Lightweight and easy to install, both anodes are direct-fit replacements requiring no modification.
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$ 127.94
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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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$ 141.77
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1-2 weeks delivery time The Osculati 43.529.12 is a zinc two-piece collar anode for Volvo Penta Saildrive 120 systems, engineered for saltwater use. Supplied with stainless steel M4×20 screws for secure fastening, this split-design anode simplifies installation around the saildrive shaft without the need to disassemble components. Designed to replace original Volvo Penta parts with full OEM compatibility.
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$ 82.14
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1-2 weeks delivery time Osculati 43.529.13 is an aluminium two-piece collar anode designed for Volvo Penta Saildrive 120 units, supplied with stainless steel M4×20 bolts. Its split-ring configuration allows quick installation around the saildrive shaft without disassembly. Optimised for brackish and saltwater, this anode ensures reliable and eco-friendly protection for saildrive legs and shaft housings.
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$ 109.78
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1-2 weeks delivery time The Osculati 43.529.15 is a mounting plate designed to adapt collar-type anodes for use on Volvo Penta Saildrive units. Fabricated from durable, corrosion-resistant aluminum alloy, it ensures precise fitment of 2-piece collar anodes, especially in retrofit or non-standard installations. The plate provides mechanical stability and electrical continuity between the saildrive leg and the anode, essential for effective galvanic protection.
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$ 58.66
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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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$ 148.84
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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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$ 22.92
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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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$ 168.27
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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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$ 51.66
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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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$ 67.21
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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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$ 51.71
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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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$ 68.87
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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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$ 19.79
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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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$ 46.09
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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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$ 46.09
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1-2 weeks delivery time The Osculati 43.253.02 zinc fin anode is designed for Selva 25 to 60 HP 4-stroke outboard engines. With a 95 mm diameter, this OEM-style trim tab anode offers dual function: protecting underwater components from galvanic corrosion and maintaining steering stability. Manufactured from high-purity zinc, it is ideal for saltwater environments and features a standard central mounting hole for quick replacement.
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$ 26.81
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1-2 weeks delivery time The Osculati 43.253.03 aluminium fin anode is a hydrodynamic trim tab-style sacrificial anode designed for Selva 25–60 HP 4-stroke outboard motors. With a diameter of Ø95 mm, this anode provides effective galvanic protection and directional stability in saltwater and brackish conditions. Made from a high-efficiency Al-Zn-In alloy, it offers superior corrosion performance with reduced environmental impact compared to zinc.
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$ 20.54
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1-2 weeks delivery time The Osculati 43.253.04 magnesium fin anode is designed for Selva 25–60 HP 4-stroke outboards operating in freshwater environments. With a Ø95 mm diameter and hydrodynamic trim tab profile, this anode provides dual functionality: precise steering balance and superior corrosion protection in low-conductivity water. Made from high-purity magnesium, it reacts faster than zinc or aluminium, ensuring maximum protection in lakes and rivers.
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$ 26.45
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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.