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 43.270.02 is a magnesium rightward bend fin anode that replaces Yamaha OEM part 6J9-45371-01. Designed for Yamaha 100–220 HP outboards operating in freshwater environments, this 100 mm diameter anode acts both as a steering trim tab and a highly effective sacrificial element. Magnesium offers the highest electrochemical activity, making it the best choice for non-saline waters to prevent galvanic corrosion of the engine's lower unit.
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$ 43.83
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1-2 weeks delivery time Osculati 43.270.61 is a zinc fin anode with a leftward bend, designed for counter-rotating Yamaha 100–220 HP outboards. It replaces Yamaha OEM part 6K1-45371-02 and features a 100 mm diameter hydrodynamic fin that functions as both a torque-compensating trim tab and a sacrificial anode. Ideal for saltwater use, this component provides critical protection for submerged parts while maintaining directional stability in engines with reversed propeller rotation.
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$ 47.04
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1-2 weeks delivery time Osculati 43.270.62 is an aluminium fin anode with a leftward bend, designed for Yamaha counter-rotating outboard engines from 100 to 220 HP. It replaces OEM part 6K1-45371-02 and features a 100 mm diameter hydrodynamic design that functions both as a trim tab and as a corrosion-preventing anode. Made from lightweight, high-efficiency aluminium alloy, this part is ideal for saltwater and brackish conditions where steering correction and anti-corrosion protection are critical.
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$ 33.89
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Suzuki 55125-87E01 & Evinrude 5031536 & OMC Outboard Magnesium Fin Anode Ø60 mm - Osculati 43.272.83
1-2 weeks delivery time Osculati 43.272.83 is a magnesium fin-type anode with a 60 mm diameter, designed for Suzuki, Evinrude, and OMC outboards. Replacing OEM parts 55125-87E01 and 5031536, it combines maximum galvanic protection with trim tab functionality. Specifically formulated for freshwater use, this anode ensures high-efficiency corrosion defense and improved steering balance.
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$ 32.14
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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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$ 64.30
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1-2 weeks delivery time Osculati 43.272.86 is a zinc fin anode with a 60 mm diameter designed for outboards from Suzuki, Evinrude, and OMC. Replacing OEM parts 55125-87E01 and 5031536, this anode provides reliable galvanic protection and trim tab functionality. It is the optimal solution for saltwater environments where stable, long-lasting protection is required for submerged engine components.
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$ 29.07
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Suzuki 55125-87E01 & Evinrude 5031536 & OMC Outboard Aluminium Fin Anode Ø60 mm - Osculati 43.272.82
1-2 weeks delivery time Osculati 43.272.82 is an aluminium fin-type anode with 60 mm diameter, designed for outboard motors from Suzuki, Evinrude, and OMC. Replacing OEM parts 55125-87E01 and 5031536, this anode combines galvanic protection with trim tab functionality. It is ideal for brackish and freshwater environments, helping preserve aluminium engine components while reducing torque steer.
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$ 13.47
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1-2 weeks delivery time Osculati 43.272.87 is a zinc fin-type anode designed for Suzuki DF60 to DF140 outboards, as well as compatible Evinrude and OMC models using OEM reference 55125-90J01. Built for use in saltwater environments, it combines effective galvanic protection with trim tab functionality, helping prevent corrosion while improving directional stability under power.
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$ 44.75
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1-2 weeks delivery time Osculati 43.272.88 is an aluminium fin anode designed for Suzuki DF60–DF140 outboards and compatible Evinrude and OMC models using OEM part 55125-90J01. Combining trim tab functionality with galvanic protection, it is ideal for brackish and freshwater environments, ensuring lightweight corrosion resistance and improved steering stability.
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$ 32.90
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1-2 weeks delivery time Osculati 43.272.89 is a magnesium fin anode compatible with Suzuki DF60 to DF140 outboards and Evinrude/OMC models using OEM part 55125-90J01. Specifically designed for freshwater use, it offers maximum galvanic protection and trim tab functionality. Its high electrochemical activity ensures lightweight and efficient corrosion control for critical submerged components.
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$ 51.34
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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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$ 44.75
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1-2 weeks delivery time Osculati 43.253.00 is a fin-type sacrificial anode designed for Evinrude and OMC 225 HP 4-stroke outboard engines. Installed at the anti-ventilation plate or gearcase, it offers directional stability and galvanic protection in saltwater use. Manufactured from marine-grade zinc, it prevents electrochemical damage to aluminium engine parts while serving as a trim tab for steering balance.
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$ 42.15
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1-2 weeks delivery time Osculati 43.317.00 is a zinc leg anode with an 8 mm mounting hole, designed for Evinrude and OMC 50–200 HP outboards. Replacing OEM references 393023 and 436745, it provides direct corrosion protection for the lower unit (leg) of the engine in saltwater conditions. This compact, high-efficiency anode prevents degradation of critical submerged surfaces.
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$ 19.55
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1-2 weeks delivery time Osculati 43.317.01 is an aluminium leg anode with an 8 mm mounting hole, designed for Evinrude and OMC outboards from 50 to 200 HP. Replacing OEM parts 393023 and 436745, it ensures reliable galvanic protection for the engine’s lower unit in brackish or freshwater. Lightweight and efficient, it’s ideal for transitional environments where zinc is too passive and magnesium too aggressive.
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$ 13.96
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1-2 weeks delivery time Osculati 43.317.02 is a magnesium leg anode with an 8 mm mounting hole, suitable for Evinrude and OMC outboards ranging from 50 to 200 HP. Replacing OEM parts 393023 and 436745, it provides maximum protection against galvanic corrosion in freshwater. Its high reactivity ensures quick electron transfer to protect critical submerged parts like the lower unit housing.
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$ 20.32
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1-2 weeks delivery time Osculati 43.317.10 is a zinc leg anode with a 3/8"x16 threaded mounting hole, suitable for Evinrude and OMC outboards from 50 to 200 HP. Designed for saltwater environments, this anode provides durable corrosion protection for lower unit components. Its universal threaded fit allows secure and simple installation, even in systems without an OEM reference.
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$ 22.54
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1-2 weeks delivery time Osculati 43.317.11 is a universal aluminium leg anode with a 3/8"x16 UNC threaded hole, compatible with Evinrude and OMC outboards from 50 to 200 HP. Designed for use in brackish and freshwater, this lightweight anode provides efficient galvanic protection for lower unit components, offering a longer lifespan and reduced buildup compared to traditional zinc.
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$ 15.97
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1-2 weeks delivery time The Osculati 43.541.30 zinc anode is designed as a direct OEM replacement for the OMC King Cobra sterndrive, referencing part number 3854130. Manufactured from high-purity zinc alloy, this anode provides robust sacrificial protection in saltwater conditions. It ensures corrosion resistance for the outdrive unit by absorbing electrochemical reactions, significantly extending the life of submerged metallic components. Engineered for an exact fit with original OMC mounts.
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$ 66.51
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1-2 weeks delivery time The Osculati 43.541.31 aluminium anode is a lightweight, high-efficiency sacrificial anode engineered for OMC King Cobra sterndrives, matching OEM reference 3854130. Made from a corrosion-resistant Al-Zn-In alloy, it offers enhanced performance in saltwater and brackish environments while reducing environmental impact compared to traditional zinc. Precision-cast for direct OEM fit, this anode delivers reliable galvanic protection to the sterndrive’s submerged components.
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$ 51.90
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1-2 weeks delivery time The Osculati 43.541.32 magnesium anode is an OEM-compatible sacrificial anode designed for OMC King Cobra sterndrive units, corresponding to part number 3854130. Made from high-purity magnesium, this anode is ideal for use in freshwater environments, where its highly active electrochemical properties ensure maximum protection against galvanic corrosion. Engineered for a precise OEM fit, it is pre-drilled and shaped to match the original part for easy installation.
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$ 92.20
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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.