Anode kits are essential for protecting outboard engines, sterndrives, and other submerged boat components from galvanic corrosion.
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Suzuki & 55320-95311 & Evinrude 5030265/5035786 & OMC Aluminium Leg Plate Anode - Osculati 43.903.21
1-2 weeks delivery time The Osculati 43.903.21 aluminium leg plate anode is engineered to replace OEM part 55320-95311 for Suzuki and 5030265 / 5035786 for Evinrude and OMC outboards. Manufactured from a high-performance Al-Zn-In alloy, it provides superior corrosion protection in saltwater and brackish conditions. The compact rectangular design fits the lower unit precisely, while the lightweight construction offers an eco-friendly alternative to traditional zinc anodes.
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€ 4,24
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1-2 weeks delivery time The Osculati 43.903.22 magnesium leg plate anode is an OEM-compatible replacement for Suzuki 55320-95311 and Evinrude/OMC 5030265 / 5035786. Optimized for freshwater environments, this lightweight anode offers highly active sacrificial protection for the outboard’s lower unit. Its magnesium construction provides superior electrochemical efficiency in low-conductivity water, making it ideal for lakes and rivers. Pre-drilled for direct, hassle-free installation.
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€ 6,93
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1-2 weeks delivery time The Osculati 43.903.30 zinc plate anode is a direct-fit replacement for Evinrude and OMC outboard engines, matching OEM part number 5033167. Designed to protect submerged outboard components from galvanic corrosion, this rectangular zinc anode is ideal for saltwater use. Engineered to OEM dimensions, it ensures fast installation and reliable performance over time.
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€ 16,17
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Suzuki 55321-90J01 & Evinrude 5032930 & OMC 60/140 HP 4 ST Zinc Plate Leg Anode - Osculati 43.903.32
1-2 weeks delivery time The Osculati 43.903.32 zinc leg plate anode is a direct OEM replacement for Suzuki (55321-90J01), Evinrude (5032930), and OMC 60–140 HP 4-stroke outboards. Designed to protect the lower unit from galvanic corrosion, this rectangular anode is cast from marine-grade zinc for optimal performance in saltwater environments. It features OEM-compatible mounting and is ideal for long-term protection of submerged engine components.
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€ 4,84
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1-2 weeks delivery time The Osculati 43.903.38 aluminium leg plate anode is a direct-fit OEM replacement for Suzuki 55321-90J01, Evinrude 5032930, and OMC 60–140 HP 4-stroke outboards. Made from a premium Al-Zn-In alloy, it offers lightweight, eco-friendly, and long-lasting corrosion protection in saltwater and brackish water. Its rectangular design and pre-drilled OEM-compatible layout make it easy to install and effective in protecting the lower unit.
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€ 3,89
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1-2 weeks delivery time The Osculati 43.903.39 magnesium plate leg anode is a freshwater-specific OEM replacement for Suzuki 55321-90J01, Evinrude 5032930, and OMC 60–140 HP 4-stroke outboards. Made from high-purity magnesium, this anode offers the most active sacrificial protection in low-conductivity environments such as lakes and rivers. Lightweight, fast-acting, and easy to install thanks to OEM-matched pre-drilled mounting holes.
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€ 6,76
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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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€ 18,78
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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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€ 9,72
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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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€ 13,02
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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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€ 23,65
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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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€ 9,38
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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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€ 14,12
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1-2 weeks delivery time The Osculati 43.272.00 zinc fin anode is a direct replacement for Suzuki OEM part 55125-96310. Designed for 20–35 HP outboards with 2 or 3 cylinders (2- or 4-stroke), this Ø70 mm trim tab anode provides galvanic protection and corrects propeller torque for improved steering control. Ideal for saltwater environments, it mounts easily in place of the original component with a central bolt.
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€ 8,76
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1-2 weeks delivery time The Osculati 43.272.40 zinc plate anode is a direct-fit replacement for Suzuki OEM part 53321-93900. Designed for 8, 9.9, and 15 HP 2-stroke outboards as well as 9.9 and 15 HP 4-stroke engines, this compact anode provides essential galvanic protection for small engine lower units in saltwater. Manufactured from high-purity zinc and engineered for OEM mounting points.
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€ 6,37
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1-2 weeks delivery time The Osculati 43.272.70 zinc fin anode is an OEM-style replacement for Suzuki part number 55125-96301. Designed for 25–50 HP outboards, this Ø60 mm trim tab-type anode helps neutralize galvanic corrosion and stabilize steering torque. Suitable for use in saltwater, it mounts directly in place of the original component using a central bolt for easy installation.
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€ 24,32
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1-2 weeks delivery time The Osculati 43.272.80 zinc fin anode is a direct OEM replacement for Suzuki part numbers 55120-87801 and 55125-87D00. Designed for high-power 150–225 HP 2-stroke engines and 60/70 HP 4-stroke models without internal cooling system, this Ø88 mm trim tab anode offers galvanic corrosion protection and steering torque correction. Cast from marine-grade zinc, it’s ideal for saltwater use and installs easily using the factory mounting point.
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€ 13,75
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1-2 weeks delivery time The Osculati 43.272.85 zinc fin anode is a direct replacement for Suzuki OEM part 5032929. Designed for 60 to 140 HP 2-stroke and 4-stroke outboard engines, it features a Ø84 mm hydrodynamic profile that delivers both galvanic corrosion protection and trim tab functionality. Manufactured from high-purity zinc, this anode is ideal for saltwater use and installs easily via a central bolt.
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€ 31,35
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1-2 weeks delivery time The Osculati 43.370.00 zinc anode kit is a full OEM-style corrosion protection set for Suzuki 40–50 HP outboard engines. It includes 7 original-reference components: two plate anodes (55320-95311), four leg anodes (55321-87J00), and one trim tab anode (55125-95500). Cast from high-purity zinc, this kit is ideal for saltwater use and ensures complete protection of the gearcase, transom bracket, and anti-ventilation plate.
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€ 39,27
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1-2 weeks delivery time The Osculati 43.370.01 aluminium anode kit is a full OEM-style protection set for Suzuki 40–50 HP outboard motors. It includes 7 components made from a high-performance Al-Zn-In alloy: two plate anodes (55320-95311), four leg anodes (55321-87J00), and one trim tab anode (55125-95500). Ideal for saltwater and brackish environments, this kit ensures lightweight and efficient corrosion protection for submerged parts.
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€ 29,69
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1-2 weeks delivery time The Osculati 43.370.02 magnesium anode kit is specifically designed for Suzuki 40–50 HP outboards operating in freshwater. It includes seven OEM-style anodes: two plates (55320-95311), four side anodes (55321-87J00), and one trim tab (55125-95500). Made from high-reactivity magnesium alloy, this kit offers maximum protection in low-conductivity environments like lakes and rivers.
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€ 64,73
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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.