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 Osculati 43.291.60 is a complete zinc anode kit for Honda 75–225 HP outboards, including 4 components: a 113 mm fin anode, a hull-mounted plate, and two internal washer anodes. Designed for saltwater use, this kit replaces multiple OEM parts and offers full-spectrum galvanic protection for lower units, gear housings, and cooling circuits.
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$ 137.42
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1-2 weeks delivery time Osculati 43.291.61 is a complete aluminium anode kit for Honda 75–225 HP outboards, offering corrosion protection across all critical zones. It includes a 113 mm fin anode, a flat external plate anode, and two internal washer-type anodes. Ideal for saltwater and brackish environments, this kit provides a lighter, eco-friendlier, and longer-lasting alternative to traditional zinc.
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$ 103.43
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1-2 weeks delivery time Osculati 43.291.62 is a full magnesium anode kit for Honda 75–225 HP outboards, engineered for freshwater environments. The kit includes a large 113 mm fin anode, one external plate, and two internal washer-type anodes. Its high reactivity ensures rapid and complete galvanic protection in low-conductivity water where zinc or aluminium are ineffective.
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$ 159.45
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1-2 weeks delivery time The Osculati 43.640.10 is a zinc fin-style trim tab anode designed as a direct OEM replacement for Tohatsu 3V1602170. Compatible with 8–20 HP 4-stroke outboards, it provides effective galvanic protection and torque balancing, with a robust center-mount design suitable for saltwater use.
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$ 35.20
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1-2 weeks delivery time The Osculati 43.640.11 aluminium fin anode is a lightweight OEM-style replacement for Tohatsu 3V1602170, designed for 8–20 HP 4-stroke outboards. Made from a high-performance Al-Zn-In alloy, it provides efficient corrosion protection and trim tab functionality in salt and brackish water, with a standard center-mount design for quick installation.
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$ 29.46
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1-2 weeks delivery time The Osculati 43.640.20 zinc anode is a direct replacement for Tohatsu 3H660218000, compatible with 4–6 HP 2-stroke and 4-stroke outboards. It ensures effective galvanic protection for small engine components exposed to saltwater, using an OEM-style fit for simple installation and reliable long-term corrosion control.
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$ 14.66
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1-2 weeks delivery time The Osculati 43.640.21 aluminium anode is an OEM-equivalent replacement for Tohatsu 3H660218000, suitable for 4 HP and 6 HP 2-stroke and 4-stroke outboards. Made from Al-Zn-In alloy, it offers excellent corrosion protection in salt and brackish water, with a lightweight profile and OEM-style bolt-on installation.
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$ 10.21
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1-2 weeks delivery time The Osculati 43.640.01 zinc fin anode is an OEM-style replacement for Tohatsu 338-60217-0, designed for 35–40 HP outboards. With a 50 mm diameter and integrated center hole, this trim tab anode offers both galvanic corrosion protection and propeller torque stabilization in saltwater environments.
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$ 33.44
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1-2 weeks delivery time The Osculati 43.640.03 zinc fin anode is an OEM-type replacement for Tohatsu 3B7-60217-0, designed for high-output 60, 70, and 140 HP outboards. With its large Ø77 mm diameter and integrated center bolt mount, it ensures both corrosion protection and trim tab stabilization for steering performance in saltwater applications.
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$ 67.49
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1-2 weeks delivery time The Osculati 43.760.01 collar anode is a direct replacement for Bukh OEM reference BOOE5829, specifically designed to protect DV10, DV20, DV36, and DV48 saildrive systems. Manufactured from high-purity zinc, this leg-mounted anode prevents galvanic corrosion in saltwater environments. With a 50 mm inner diameter and 138 mm width, it fits securely around the lower leg of the saildrive, offering full-area protection with OEM-fit accuracy.
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$ 77.16
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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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$ 47.30
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1-2 weeks delivery time The Osculati 43.651.01 aluminium anode is designed for Arneson surface drive transmissions, offering durable corrosion protection with reduced weight. Weighing 0.61 kg, it is ideal for high-performance marine applications where aluminium is preferred over zinc for its lighter mass and environmental compliance. This anode provides effective protection against galvanic corrosion in saltwater environments, matching the geometry of its zinc counterparts.
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$ 40.69
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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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$ 99.26
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1-2 weeks delivery time The Osculati 43.920.07 zinc anode offers 8 kg of reliable cathodic protection for metal components in marine environments. With overall dimensions of 300 × 150 mm and a bolt-mounting system featuring 125 mm hole spacing and 8 mm diameter holes, this anode is engineered for Arneson surface drives and other critical submerged parts. Its pure zinc composition ensures effective defense against galvanic corrosion in saltwater applications.
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$ 322.79
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1-2 weeks delivery time Osculati 43.925.05 is a 3.14 kg aluminium anode designed for bolt-on installation with a 300 × 150 mm footprint and 125 mm hole spacing. Made from high-purity aluminium alloy, it delivers long-lasting cathodic protection for marine systems exposed to saltwater, particularly surface drive units such as Arneson. The low electrical potential of aluminium makes this anode ideal for vessels in brackish and seawater environments.
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$ 168.95
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1-2 weeks delivery time The Osculati 43.750.04 saildrive anode is a direct replacement for Lombardini OEM part 9135033, designed to fit saildrive systems with a 121 mm outer diameter. Manufactured from high-purity zinc, it provides reliable sacrificial protection against galvanic corrosion in saltwater environments, preserving critical underwater components and extending the life of the propulsion system.
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$ 84.13
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1-2 weeks delivery time The Osculati 43.750.05 saildrive anode is a direct replacement for Lombardini OEM part 9135034, designed for saildrive systems requiring a Ø152 mm zinc ring anode. It provides essential galvanic protection to the lower saildrive unit and surrounding metal components in saltwater environments, helping to prevent electrochemical damage and extend the life of your marine propulsion system.
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$ 91.40
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1-2 weeks delivery time The Osculati 43.770.01 aluminium anode is a direct replacement for Torqeedo OEM part 060-00031, designed for outboard models 401, 403, 603, 801, and 1103. Made from high-purity aluminium, this anode ensures optimal galvanic protection in saltwater environments, preserving key components of electric outboard motors while maintaining lightweight performance and environmental compliance.
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$ 32.26
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1-2 weeks delivery time The Osculati 43.610.00 is a universal-fit zinc anode designed for Evinrude and Chrysler outboard motors. Measuring 123 × 36 × 10 mm, this compact rectangular anode delivers reliable protection for lower units and submerged outboard surfaces. Manufactured from high-purity zinc, it is optimized for saltwater environments, absorbing galvanic current to preserve engine components from corrosion. Pre-drilled for fast, OEM-style installation.
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$ 23.12
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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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$ 54.57
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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.