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 43.256.00 zinc fin anode is designed specifically for Selva Manta and Barracuda outboard engines. It serves as both a trim tab for steering correction and a sacrificial anode for corrosion protection in saltwater. Manufactured from high-purity zinc, this OEM-style component protects submerged metal surfaces while maintaining proper engine alignment during navigation.
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$ 33.79
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1-2 weeks delivery time The Osculati 43.256.01 aluminium fin anode is a lightweight trim tab-style sacrificial anode designed for Selva Manta and Barracuda outboards. Manufactured from a high-performance Al-Zn-In alloy, this anode ensures effective corrosion protection in saltwater and brackish water while improving directional stability. With a hydrodynamic profile and OEM-compatible central mounting hole, it’s easy to install and eco-friendlier than zinc alternatives.
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$ 21.47
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1-2 weeks delivery time The Osculati 43.269.00 zinc fin anode is a direct replacement for Selva OEM part 67F-45371-00 and fits 50 to 100 HP 4-stroke outboard motors. Made from high-purity zinc, it provides both galvanic protection and steering trim correction. Designed for saltwater use, this Ø95 mm trim tab anode helps extend engine life by preventing corrosion in the lower unit.
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$ 32.29
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1-2 weeks delivery time Osculati 43.263.00 is a zinc outboard anode designed to replace Yamaha OEM part 6E8-45251-02. Specifically intended for use in saltwater environments, this anode delivers dependable galvanic protection for Yamaha outboard engine components. Its precise geometry ensures a direct fit to the engine casing, preserving structural integrity by preventing corrosion through sacrificial metal action.
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$ 29.81
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1-2 weeks delivery time Osculati 43.264.00 is a zinc outboard anode designed to replace Yamaha OEM part 63D-45251-00. Suitable for Yamaha 40–50 HP 4-stroke outboards, this bolt-on anode is optimized for saltwater environments. Constructed from marine-grade zinc, it protects submerged engine parts such as gear cases and cavitation plates from galvanic corrosion, ensuring extended service life and operational reliability.
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$ 64.22
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1-2 weeks delivery time Zinc rod anode designed for Yamaha outboards (OEM 6H1-45251-03) and Selva engines from 25 to 100 HP. This anode is typically inserted into the cooling water passages to prevent galvanic corrosion inside the engine block and cylinder head. Ideal for saltwater environments, it provides essential internal protection for long-term engine reliability.
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$ 40.94
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1-2 weeks delivery time Aluminium rod anode for Yamaha outboards (OEM 6H1-45251-03) and Selva 25–100 HP engines. Designed for internal installation in cooling water channels, this anode protects against galvanic corrosion inside the cylinder head and engine block. Ideal for saltwater and brackish environments, aluminium offers long-lasting, eco-friendly protection with lower mass and greater efficiency than zinc.
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$ 30.29
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1-2 weeks delivery time Osculati 43.260.04 – Yamaha 68T-45251-00 & Selva is a zinc leg anode designed to protect lower units of Yamaha and Selva 4-stroke outboard motors in the 6 to 9.9 HP range. Engineered to OEM specifications, it replaces Yamaha part 68T-45251-00 and fits precisely without modification. Made of high-purity zinc for saltwater environments, this anode prevents galvanic corrosion by sacrificing itself to protect vital metal components.
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$ 23.41
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1-2 weeks delivery time Osculati 43.260.24 – Yamaha 68T-45251-00 & Selva is an aluminium leg anode for 4-stroke outboard engines from 6 to 9.9 HP. Designed to replace OEM Yamaha part 68T-45251-00, it provides targeted corrosion protection for the lower unit. Aluminium composition makes it ideal for salt and brackish water, offering longer life and reduced environmental impact compared to zinc.
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$ 12.89
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1-2 weeks delivery time Osculati 43.260.03 – Yamaha 65W-45251-00 / 6E0-45251-12 & Selva is a bridge-type zinc anode with a 6.5 mm central bore, engineered to protect 4-stroke Yamaha and Selva outboards from 4 to 70 HP. Designed for installation on the engine leg, this anode prevents galvanic corrosion in saltwater by sacrificing itself to protect aluminum and steel components. Manufactured to OEM spec for exact fit.
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$ 12.13
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1-2 weeks delivery time OEM-style aluminium bridge anode designed for Yamaha outboards (ref. 65W-45251-00 / 6EO-45251-12) and Selva 4–70 HP 4-stroke engines. Featuring a 6.5 mm mounting bore, it fits directly into the engine leg housing, providing effective corrosion protection for submerged components in saltwater and brackish environments. The high-efficiency aluminium alloy ensures long service life and reliable performance.
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$ 9.77
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1-2 weeks delivery time Magnesium bridge anode for Yamaha outboards (OEM 65W-45251-00 / 6EO-45251-12) and Selva 4–70 HP 4-stroke engines. Featuring a 6.5 mm central bore, it fits the leg or lower unit of the engine. Designed specifically for freshwater environments, magnesium provides the highest electrochemical activity, ensuring fast and efficient protection against galvanic corrosion in low-conductivity conditions.
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$ 17.62
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1-2 weeks delivery time Osculati 43.260.02 – Yamaha 67C-45251-00 / 63D-45251-10 & Selva is a zinc leg anode designed to protect the submerged lower unit of Yamaha and Selva outboard engines from galvanic corrosion. Precisely cast to match OEM references, it provides reliable sacrificial protection in saltwater environments. Ideal for various mid-range Yamaha and compatible Selva models, it ensures secure mounting and easy replacement without modification.
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$ 42.78
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1-2 weeks delivery time The Osculati 43.260.50 aluminium leg anode is a direct replacement for Yamaha part numbers 67C-45251-00 and 63D-45251-10, as well as compatible Selva marine engines. Made from high-efficiency aluminium alloy, this anode is designed for outboard motor legs exposed to brackish or saltwater. It provides essential galvanic protection against corrosion for Yamaha and Selva drive housings, ensuring long-term durability of submerged engine components.
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$ 26.37
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1-2 weeks delivery time Osculati 43.260.51 is a magnesium leg anode compatible with Yamaha OEM parts 67C-45251-00 and 63D-45251-10, as well as selected Selva outboards. Engineered specifically for freshwater applications, this bolt-on anode provides highly active galvanic protection to submerged drive legs and anti-cavitation plates. Manufactured from high-purity magnesium alloy, it offers rapid electrochemical response in non-saline environments, significantly extending the life of vital engine components.
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$ 41.69
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1-2 weeks delivery time Osculati 43.267.00 is a zinc anode designed to replace Yamaha and Selva OEM reference 61N-45251-01. Manufactured for use in saltwater conditions, this anode provides targeted galvanic protection for outboard engine components exposed to electrolytic corrosion. Its OEM-matched design allows for quick, bolt-on installation on compatible Yamaha and Selva outboard models.
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$ 49.90
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1-2 weeks delivery time The Osculati 43.267.01 aluminium outboard anode is a lightweight, high-efficiency replacement for Yamaha and Selva OEM part number 61N-45251-01. Ideal for saltwater and brackish water environments, this anode offers superior corrosion protection for outboard engine components. Thanks to its bolt-on design and OEM-conforming dimensions, it ensures quick installation and extended performance life.
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$ 35.27
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1-2 weeks delivery time The Osculati 43.267.02 magnesium outboard anode is a direct replacement for Yamaha and Selva OEM reference 61N-45251-01. Engineered for freshwater environments, this bolt-on anode offers the highest level of electrochemical protection against galvanic corrosion. Lightweight and highly reactive, magnesium anodes are the most effective option for non-saline water conditions, helping preserve the integrity of submerged engine components.
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$ 44.56
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1-2 weeks delivery time Zinc support anode compatible with Yamaha (OEM 6G5-45251-01 / -02) and Selva outboards. Designed for mounting on the lower unit housing, this anode provides effective galvanic protection of internal and external drive components in saltwater conditions. Its OEM shape ensures direct fitment and dependable long-term corrosion resistance.
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$ 66
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1-2 weeks delivery time Aluminium support anode compatible with Yamaha 6G5-45251-01 / -02 and Selva outboards. Designed for installation on the lower unit housing, this anode offers superior galvanic protection in saltwater and brackish environments. Aluminium provides a lightweight, long-lasting alternative to zinc, ensuring reduced maintenance and environmental impact.
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$ 37.70
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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.