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 43.260.17 – Yamaha 67F-11325-01 is a zinc internal cylinder anode for Yamaha outboard engines ranging from 80 to 300 HP. Designed as a direct replacement for OEM part 67F-11325-01, it is installed inside the engine's cooling system to prevent galvanic corrosion of aluminum components. Made from high-purity zinc, this anode is optimized for saltwater conditions and ensures long-lasting internal protection with OEM fit and finish.
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$ 14.66
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1-2 weeks delivery time Osculati 43.260.19 – Yamaha 68V-11325-02 is a zinc internal cylinder anode engineered for Yamaha outboard motors from 80 to 250 HP. Designed to replace the OEM part 68V-11325-02, this anode is installed within the cooling system water passages to protect vital engine internals from galvanic corrosion. Its marine-grade zinc composition ensures optimal sacrificial function in saltwater environments.
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$ 36.78
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1-2 weeks delivery time Osculati 43.260.21 – Yamaha 68V-11325-02 is an internal aluminium cylinder anode for Yamaha outboard engines from 80 to 250 HP. As a direct replacement for OEM part 68V-11325-02, it is installed inside the water jacket to protect internal engine surfaces from galvanic corrosion. This aluminium version is especially effective in salt and brackish waters, offering high electrochemical efficiency, lighter weight, and greater environmental compatibility than traditional zinc anodes.
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$ 28.64
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1-2 weeks delivery time Osculati 43.276.00 is a zinc plate anode designed to replace Yamaha OEM reference 6AH-45251. Measuring 80 × 58 mm, it provides targeted sacrificial protection for lower units and transom-mounted components exposed to saltwater corrosion. Made from marine-grade zinc, this bolt-on anode ensures long-lasting electrochemical defense for Yamaha outboard engines.
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$ 34.18
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1-2 weeks delivery time Osculati 43.276.01 is an aluminium plate anode designed to replace Yamaha OEM reference 6AH-45251. Measuring 80 × 58 mm, this bolt-on anode is ideal for protecting outboard motor lower units and flat mounting surfaces from galvanic corrosion in saltwater and brackish water. Constructed from high-efficiency aluminium alloy, it offers lightweight performance and extended service life compared to zinc equivalents.
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$ 21.95
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1-2 weeks delivery time Osculati 43.276.02 is a magnesium plate anode that replaces Yamaha OEM reference 6AH-45251. With dimensions of 80 × 58 mm, it is engineered for maximum performance in freshwater environments. The high-reactivity magnesium alloy offers superior galvanic protection for outboard lower units, transoms, and flat metallic surfaces where corrosion risk is elevated due to low conductivity.
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$ 31.24
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1-2 weeks delivery time Aluminium foot anode compatible with Yamaha 300–350 HP outboards, OEM reference 6AW-45373-00. Designed for installation on the lower unit (gearcase housing), this anode ensures long-term galvanic protection in saltwater and brackish water. Its aluminium alloy composition provides optimal performance and extended lifespan compared to zinc, with reduced environmental impact.
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$ 35.78
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1-2 weeks delivery time Osculati 43.354.00 is a zinc anode kit designed for Yamaha 60–90 HP outboard motors, replacing OEM parts 688-45371-02 and 6H1-45251-02. The kit includes a trim tab fin anode and a lower unit plate anode. Made from high-purity zinc for saltwater conditions, it protects critical submerged components from galvanic corrosion, extending engine life and preserving performance.
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$ 69.65
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1-2 weeks delivery time Osculati 43.354.01 is an aluminium anode kit for Yamaha 60–90 HP outboard motors, replacing OEM parts 688-45371-02 and 6H1-45251-02. Designed for saltwater and brackish water use, the kit includes a trim tab fin anode and a lower gear case plate anode. Aluminium offers longer service life, lighter weight, and better eco-compatibility than zinc, while maintaining full corrosion protection and steering stability.
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$ 52.68
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1-2 weeks delivery time Osculati 43.354.02 is a complete zinc anode kit designed for Yamaha 40–60 HP 4-stroke outboards. It includes three OEM-equivalent components: 67C-45371-00, 67C-45251-00, and 65W-45251-00. Ideal for saltwater use, this kit protects the gear case, trim tab, and other submerged components against galvanic corrosion, preserving engine integrity and steering balance under continuous exposure to marine environments.
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$ 95.39
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1-2 weeks delivery time Osculati 43.354.03 is an aluminium anode kit for Yamaha 40–60 HP 4-stroke outboard engines, including three OEM-equivalent components: 67C-45371-00, 67C-45251-00, and 65W-45251-00. Designed for saltwater and brackish conditions, the aluminium alloy provides improved efficiency, lighter weight, and longer lifespan than traditional zinc anodes, making this kit ideal for modern marine applications.
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$ 68.61
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1-2 weeks delivery time Osculati 43.354.10 is a full zinc anode kit tailored for Yamaha 40–50 HP outboard engines. The set includes five dedicated anodes—fin, side plate, trim tab, and auxiliary positions—based on Osculati parts 43.256.00, 43.260.03, 43.264.00, 43.260.02, and 43.260.11. Designed for saltwater use, this kit offers comprehensive galvanic protection to exposed lower unit and steering components, ensuring durability and operational safety.
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$ 149.22
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1-2 weeks delivery time Osculati 43.354.11 is a zinc anode kit designed for Yamaha 80–100 HP outboard engines. It includes three OEM-style protection elements: 43.254.10, 43.269.00, and 43.260.07. Built for saltwater environments, the kit provides full cathodic protection for lower unit components, steering trim, and gear housing areas, helping to extend engine life and maintain structural integrity under heavy use.
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$ 82.34
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1-2 weeks delivery time Osculati 43.350.00 is a complete zinc anode kit for Yamaha 150–200 HP outboard engines, replacing OEM parts 6G5-45251-01 and 6J9-45371-01. Designed for saltwater environments, the kit includes a gear case plate anode and a trim tab fin anode, offering comprehensive galvanic protection for the lower unit and steering system. Ideal for routine maintenance or full corrosion system replacement.
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$ 101.74
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1-2 weeks delivery time Osculati 43.350.01 is a complete aluminium anode kit for Yamaha 150–200 HP outboard engines, replacing OEM parts 6G5-45251-01 and 6J9-45371-01. Designed for optimal performance in saltwater and brackish environments, the kit includes a gear case plate anode and a rightward-bend fin trim tab anode, providing comprehensive corrosion protection and torque compensation with improved efficiency over traditional zinc.
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$ 64.45
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1-2 weeks delivery time Osculati 43.350.02 is a magnesium anode kit designed for Yamaha 150–200 HP outboard engines, replacing OEM parts 6G5-45251-01 and 6J9-45371-01. Specifically engineered for freshwater environments, the kit includes a gear case plate anode and a rightward-bend fin anode, offering the most active level of galvanic protection where conductivity is low. Magnesium’s high reactivity makes this kit ideal for inland lakes and rivers.
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$ 94.75
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1-2 weeks delivery time Osculati 43.351.01 is an aluminium anode kit for Yamaha 150–200 HP outboard engines with counter-rotating propellers. This kit replaces OEM parts 6G5-45251-01 and 6K1-45371-02 and includes a gear case plate anode and a leftward-bend trim tab fin anode, specifically designed for torque compensation in reversed thrust systems. Ideal for saltwater and brackish conditions, aluminium provides high-efficiency protection and environmental compliance.
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$ 64.45
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1-2 weeks delivery time Osculati 43.352.00 is a zinc anode kit designed for Yamaha 200–250 HP outboard motors, replacing OEM parts 6G5-45251-01 and 61A-45371-00. It includes a gear case plate anode and a fixed center fin anode for large-engine lower units. Developed for saltwater use, the kit ensures comprehensive galvanic protection of submerged components exposed to aggressive marine environments.
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$ 114.04
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1-2 weeks delivery time Osculati 43.352.01 is an aluminium anode kit designed for Yamaha 200–250 HP outboards, replacing OEM parts 6G5-45251-01 and 61A-45371-00. The kit includes a gear case plate anode and a fixed center fin anode, both made from high-efficiency aluminium alloy for long-lasting protection in saltwater and brackish water environments. It offers lightweight, eco-friendly, and high-performance galvanic protection for large-engine applications.
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$ 64.45
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1-2 weeks delivery time Osculati 43.352.02 is a magnesium anode kit specifically designed for Yamaha outboard engines from 200 to 250 HP, replacing OEM parts 6G5-45251-01 and 61A-45371-00. Optimized for freshwater use, the kit includes a gear case plate anode and a fixed center fin anode. Magnesium’s high electrochemical activity ensures superior corrosion protection in low-conductivity water, making this kit ideal for inland lake and river applications.
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$ 106.74
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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.