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 43.420.00 is a zinc fin anode compatible with Mercury and Honda outboard engines ranging from 40 to 225 HP (2-stroke and 4-stroke). With a standard 7/16" threaded shaft, it directly replaces OEM parts Mercury 31640 and Honda 41107-ZW1-003ZA, providing effective saltwater corrosion protection and hydrodynamic balance correction.
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$ 31.88
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1-2 weeks delivery time The Osculati 43.420.10 is an aluminium fin anode for Mercury and Honda outboards from 40 to 225 HP (2-stroke and 4-stroke). It replaces OEM parts Mercury 31640 and Honda 41107-ZW1-003ZA. Featuring a 7/16" thread and hydrodynamic fin profile, it provides effective corrosion protection and propeller torque balancing in salt and brackish waters.
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$ 18.84
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1-2 weeks delivery time The Osculati 43.420.11 is a magnesium fin anode designed for Mercury and Honda outboard engines from 40 to 225 HP. It replaces OEM parts Mercury 31640 and Honda 41107-ZW1-003ZA. Featuring a 7/16" UNC thread and hydrodynamic fin, it ensures high-efficiency galvanic protection in freshwater, where magnesium outperforms zinc and aluminium.
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$ 40.87
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1-2 weeks delivery time Osculati 43.291.00 is a zinc fin-type anode compatible with Honda 25–50 HP outboards. Replacing OEM parts 06412-ZV5-000 and 41107-ZV-5-000, it is mounted under the anti-ventilation plate and provides critical corrosion protection and steering torque compensation in saltwater environments.
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$ 32.60
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1-2 weeks delivery time Osculati 43.291.01 is an aluminium fin-type anode designed for Honda 25–50 HP outboards, equivalent to OEM parts 06412-ZV5-000 and 41107-ZV-5-000. It provides effective cathodic protection of the lower unit and acts as a steering torque compensator. Optimised for saltwater and brackish water use, this anode offers a lightweight, durable solution with excellent corrosion resistance.
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$ 23.38
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1-2 weeks delivery time Osculati 43.291.02 is a magnesium fin-type anode for Honda 25–50 HP outboards, matching OEM parts 06412-ZV5-000 and 41107-ZV-5-000. Optimized for freshwater use, it combines high electrochemical reactivity with steering torque correction, offering full protection for lower units and maintaining precise handling in lake and river conditions.
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$ 43.83
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1-2 weeks delivery time Osculati 43.291.50 is a large 113 mm zinc fin anode for Honda 75–125 HP outboards, matching OEM part 41107-ZW1-B01ZA. It provides dual functionality: galvanic protection for submerged aluminium components and correction of propeller torque. Ideal for saltwater environments, this anode ensures both performance and durability of the lower unit.
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$ 44
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1-2 weeks delivery time Osculati 43.291.51 is an aluminium fin anode designed for Honda 75–125 HP outboards, equivalent to OEM part 41107-ZW1-B01ZA. With a large 113 mm diameter, it provides lower-unit corrosion protection and steering torque correction in saltwater and brackish conditions, offering a lighter and longer-lasting alternative to zinc.
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$ 34.71
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1-2 weeks delivery time Osculati 43.315.20 is a zinc outboard anode designed for use in saltwater environments. It directly replaces OEM part 41106-935-812 and is compatible with outboards from Honda, Evinrude, and OMC (refs. 173029 / 123009). This anode delivers durable and effective corrosion protection for lower unit and trim components, ensuring reliable performance in harsh marine conditions.
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$ 14.66
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1-2 weeks delivery time Osculati 43.314.98 is an aluminium outboard anode designed to replace OEM part 41106-935-812 (also cross-referencing Evinrude 173029 and OMC 123009). Engineered for Honda, Evinrude, and OMC engines, it is ideal for brackish and freshwater conditions, offering effective corrosion protection for aluminium components without adding excessive weight.
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$ 9.55
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1-2 weeks delivery time Osculati 43.314.97 is a magnesium anode designed for outboards from Honda, Evinrude, and OMC. It replaces OEM parts 173029, 123009, and 41106-935-812, and is ideal for freshwater environments. Lightweight and highly reactive, this anode offers superior galvanic protection to aluminium components, particularly in low-conductivity waters.
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$ 20.52
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1-2 weeks delivery time Osculati 43.290.00 is a zinc plate anode designed for Honda 35–50 HP outboard motors, directly replacing OEM part 06411-ZV5-000. Installed on the lower unit, it prevents galvanic corrosion of aluminium components exposed to saltwater, ensuring extended durability and structural integrity under daily marine use.
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$ 37.42
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1-2 weeks delivery time Osculati 43.290.01 is a high-efficiency aluminium plate anode for Honda 35–50 HP outboard engines, designed as a direct OEM replacement for 06411-ZV5-000. It offers superior corrosion protection in both saltwater and brackish water while being lighter and more environmentally friendly than zinc, making it ideal for long-term engine preservation under daily marine use.
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$ 26.91
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1-2 weeks delivery time Osculati 43.290.02 is a magnesium plate anode for Honda 35–50 HP outboard engines, equivalent to OEM part 06411-ZV5-000. Specifically designed for freshwater environments, it provides the highest level of electrochemical protection against galvanic corrosion in the lower unit, where aluminium and zinc anodes are insufficient.
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$ 36.96
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1-2 weeks delivery time Osculati 43.424.07 is a zinc plate anode designed for Honda outboards from 75 to 225 HP. As a direct replacement for OEM part 41106-ZW-000, this anode provides durable and stable corrosion protection in saltwater environments. Built to fit without modification, it preserves critical engine components like the lower unit, brackets, and internal cooling channels.
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$ 51.61
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1-2 weeks delivery time Osculati 43.424.04 is an aluminium plate anode engineered for Honda outboards rated from 75 to 225 HP. Replacing OEM reference 41106-ZW-000, it provides long-lasting protection in brackish and freshwater conditions. With marine-grade aluminium construction and precise dimensions, it offers a direct OEM fit for effective corrosion prevention on key submerged engine components.
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$ 41.30
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1-2 weeks delivery time Osculati 43.423.98 is a magnesium plate anode specifically developed for Honda outboards rated from 75 to 225 HP. Replacing OEM part 41106-ZW-000, this high-reactivity anode provides superior protection in freshwater environments. Designed for direct fitment, it helps prevent galvanic corrosion of critical submerged engine components.
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$ 55.47
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1-2 weeks delivery time Osculati 43.292.00 is a zinc replacement anode for Honda 8–20 HP outboard motors, equivalent to OEM part 41106-ZW9-020. It protects internal cooling channels or water pump housings from galvanic corrosion when operating in saltwater environments, helping extend the life of key aluminium engine components.
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$ 22.64
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1-2 weeks delivery time Osculati 43.292.01 is a direct-fit aluminium anode for Honda 8–20 HP outboards, replacing OEM part 41106-ZW9-020. It protects internal water-exposed components such as the cooling system and pump housing from galvanic corrosion, especially in saltwater or brackish environments, offering a lightweight and eco-friendly alternative to traditional zinc.
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$ 15.29
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1-2 weeks delivery time Osculati 43.292.03 is a magnesium anode designed for Honda 8–20 HP outboards, replacing the original part 41106-ZW9-020. Tailored for freshwater use, it provides highly reactive galvanic protection for internal engine areas such as the cooling jacket and water pump housing, where aluminium parts are most exposed to corrosion.
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$ 22.36
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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.