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 43.353.00 is a zinc anode kit for Yamaha 200–300 HP high-performance outboards. This kit replaces OEM references 6G5-45251-01 and 69L-45371-00 and includes a gear case plate anode and a specially shaped center fin anode. Designed for saltwater use, the kit provides targeted galvanic protection to key submerged components under high-load conditions typical of sport and offshore engines.
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$ 102.41
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1-2 weeks delivery time Osculati 43.353.01 is a high-efficiency aluminium anode kit for Yamaha 200–300 HP high-performance outboard engines. Replacing OEM parts 6G5-45251-01 and 69L-45371-00, this kit includes a gear case plate anode and a hydrodynamic center fin anode. Engineered for saltwater and brackish conditions, aluminium provides superior protection with less weight and greater longevity than zinc, making it ideal for fast, heavy-load marine applications.
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$ 64.45
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1-2 weeks delivery time Osculati 43.353.12 is a magnesium anode kit specifically designed for Yamaha 200–300 HP high-performance outboards. This kit replaces OEM parts 6G5-45251-01 and 69L-45371-00, and includes a gear case plate anode and a hydrodynamic center fin anode. Magnesium is the most active anode material available and is the only suitable choice for effective protection in freshwater conditions, ensuring optimal corrosion control for high-load engine systems.
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$ 98.81
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1-2 weeks delivery time Osculati 43.355.14 is a heavy-duty aluminium anode kit developed for Yamaha 300–350–425 HP high-performance outboards. Specifically designed for offshore and high-output engines, this kit delivers superior galvanic protection in saltwater and brackish environments. Manufactured from marine-grade aluminium alloy, it combines longevity, environmental safety, and weight efficiency for modern, high-demand boating.
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$ 67.26
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1-2 weeks delivery time Osculati 43.355.15 is a magnesium anode kit for Yamaha 300–350–425 HP high-performance outboard engines, including XTO Offshore models. Designed exclusively for freshwater use, magnesium provides the highest electrochemical reactivity, offering superior galvanic protection where aluminium and zinc are ineffective. Ideal for preserving critical submerged engine components in lakes and rivers.
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$ 103.53
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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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$ 25.72
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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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$ 34.71
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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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$ 9.09
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1-2 weeks delivery time The Osculati 43.903.35 plate anode is an OEM-style component for Suzuki 6 to 15 HP 4-stroke outboard motors. Measuring 48 × 18 mm and equipped with an integrated M6 threaded insert, it directly replaces part number 41811-98500. Made from high-purity zinc, this anode is optimized for saltwater protection of small engine gearcases and submerged metal parts.
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$ 16.70
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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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$ 81.05
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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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$ 49.95
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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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$ 95.78
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1-2 weeks delivery time The Osculati 43.371.00 zinc anode kit is designed for Suzuki 90 to 140 HP outboard motors, offering full galvanic protection with OEM-equivalent parts. It includes six components: one lower unit plate anode (55321-90J01), four leg/bracket anodes (55321-87J00), and one trim tab anode (55320-94900). Manufactured from high-purity zinc, this kit is ideal for saltwater use and installs easily into original mounting locations.
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$ 92.33
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1-2 weeks delivery time The Osculati 43.371.01 aluminium anode kit is a lightweight, eco-conscious OEM-style protection set for Suzuki 90–140 HP outboard engines. It includes six components cast from a high-performance Al-Zn-In alloy: one lower unit plate anode (55321-90J01), four side anodes (55321-87J00), and one trim tab (55320-94900). Ideal for salt and brackish waters, the kit provides complete corrosion protection with excellent durability and reduced environmental impact.
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$ 65.90
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1-2 weeks delivery time The Osculati 43.371.02 magnesium anode kit offers complete OEM-style corrosion protection for Suzuki 90–140 HP outboard motors operating in freshwater environments. It includes six components: one lower unit plate anode (55321-90J01), four bracket anodes (55321-87J00), and one trim tab anode (55320-94900). Magnesium ensures maximum reactivity in low-conductivity waters such as lakes and rivers.
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$ 97.05
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1-2 weeks delivery time The Osculati 43.372.00 zinc anode kit is designed for corrosion protection of Suzuki 200–250 HP outboard motors. This two-part OEM-style kit includes one trim tab anode (55320-94900) and two lower unit plate anodes (55320-95311). Cast from high-purity zinc, this setup ensures reliable performance in saltwater environments by preventing galvanic corrosion on submerged engine parts.
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$ 88.78
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1-2 weeks delivery time The Osculati 43.372.01 aluminium anode kit is a complete corrosion protection set for Suzuki 200–250 HP outboard motors. It includes one trim tab anode (55320-94900) and two lower unit plate anodes (55320-95311), all made from a high-performance Al-Zn-In aluminium alloy. Optimized for use in salt and brackish waters, this lightweight and eco-conscious kit replaces factory anodes with OEM-style fit and superior longevity.
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$ 65.52
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1-2 weeks delivery time The Osculati 43.372.02 magnesium anode kit is designed for freshwater corrosion protection of Suzuki 200–250 HP outboards. It includes two lower unit plate anodes (55320-95311) and one trim tab anode (55320-94900), all cast from high-reactivity magnesium alloy. Perfect for low-conductivity waters like lakes and rivers, this OEM-style kit offers superior protection with a lightweight, eco-friendly profile.
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$ 89.72
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1-2 weeks delivery time The Osculati 43.554.11 zinc anode is a direct replacement for Volvo Penta 3855411-2, intended for installation on the leg section of Duo Prop sterndrive systems. It provides effective cathodic protection for submerged metal parts in saltwater environments. Cast from marine-grade zinc, this anode weighs approx. 730 g and ensures long-lasting performance with a precise OEM fit.
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$ 73.61
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1-2 weeks delivery time The Osculati 43.554.09 aluminium anode is a direct replacement for Volvo Penta 3855411-2, designed for the leg section of Duo Prop sterndrives. Manufactured from marine-grade aluminium, it offers reliable galvanic corrosion protection in saltwater and brackish environments. Weighing approximately 730 g, it installs easily on the lower unit and ensures extended service life with minimal maintenance.
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$ 45.48
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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.