Engine, sterndrive, and outboard anodes are designed to protect submerged metal components from galvanic corrosion through sacrificial cathodic protection. They are used on marine engines, sterndrives, outboard lower units, propellers, trim tabs, and related underwater hardware where exposed metals require protection in saltwater, brackish water, or freshwater. Anodes are available individually or as complete kits, with different shapes, mounting configurations, and materials selected to match the specific engine or drive system.
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1-2 weeks delivery time The Trem L8146003 anodes are designed to protect Yamaha and Mariner engines from corrosion, ensuring durability and optimal performance, compatible with motor HP ranging from 20 to 70 and made from high-quality zinc material.
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$ 19.32
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1-2 weeks delivery time The Trem L8146004 anodes are designed to protect Yamaha and Mariner engines from corrosion, enhancing their lifespan and performance. They are compatible with motors ranging from 10 to 50 HP, made from durable ZN material, and identified by the Polipodio article YA006B and original code 67C-45371-00.
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$ 14.58
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1-2 weeks delivery time The Trem L8246004 anodes are specifically designed for Yamaha and Mariner engines, providing essential protection against corrosion and enhancing engine longevity. Compatible with models using original code 67C-45371-00 and suitable for motors with 10-50 HP, these anodes are made from durable aluminum.
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$ 24.14
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1-2 weeks delivery time The Trem L8146016 anodes are designed for Yamaha and Mariner engines, providing excellent protection and durability. Specifically, they are compatible with models F-YA 60/90 and support motor horsepower ranging from 60 to 90, made from high-quality zinc material.
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$ 23.36
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1-2 weeks delivery time The Trem L8146015 anodes are designed for Yamaha and Mariner engines, offering effective corrosion protection and extending motor life. Made from high-quality materials, these anodes are suitable for engines with a horsepower range of 115 to 225, featuring the original code 6G5-45251-02.
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$ 50.83
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1-2 weeks delivery time The Trem L8246015 anodes are specifically designed for Yamaha and Mariner engines, ensuring protection against corrosion and enhancing performance. Made from aluminum, these anodes are suitable for engines with a horsepower range of 115 to 225, featuring the original code 6G5-45251-02.
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$ 28.74
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1-2 weeks delivery time The Trem L8146022 anodes are specially designed for Yamaha and Mariner engines, providing essential corrosion protection to enhance the longevity and performance of motors ranging from 115 to 225 HP, made from durable zinc material.
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$ 37.98
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1-2 weeks delivery time The Trem L8246022 anodes are crucial for protecting Yamaha and Mariner engines from corrosion, ensuring optimal performance and longevity. Made from high-quality aluminum, these anodes are designed for engines with a horsepower range of 115 to 225, with the original code 6E5-45371-01 and model YA011AL.
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$ 46.73
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1-2 weeks delivery time The Trem L8146105 anodes are designed for Yamaha and Mariner engines, compatible with models F-YA-16 and original code 6E5-45251-00, suitable for motors with 115 to 225 HP, and made from zinc for effective corrosion protection.
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$ 18.79
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1-2 weeks delivery time The Trem L8246105 anodes are designed for Yamaha and Mariner engines, providing crucial corrosion protection to enhance engine performance and longevity. Compatible with motors ranging from 115 to 225 HP, these aluminum anodes are identified by the Polipodio article YA014AL and the original code 6E5-45251-00.
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$ 22.96
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1-2 weeks delivery time The Trem L8146116 anodes are designed for Yamaha and Mariner engines, providing excellent corrosion protection to enhance performance and longevity. Made from high-quality ZN material, they are suitable for motors with 9.9 to 15 HP and feature the original code 6E8-45251.
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$ 20.56
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1-2 weeks delivery time The Trem L8146024 anodes are designed for Yamaha and Mariner engines, providing essential corrosion protection to ensure optimal performance and durability. They feature the Polipodio article YA021, model F-YA-225 R, with an original code of 6J9-45371-02 for engines with 220 HP, made from zinc (ZN).
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$ 38.06
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1-2 weeks delivery time The Trem L8246024 anodes are high-quality aluminum components designed to protect Yamaha and Mariner engines from corrosion, ensuring optimal performance and longevity, and are suitable for motors with a horsepower of 220.
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$ 47.18
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1-2 weeks delivery time The Trem L8146023 is a high-quality anode designed for Yamaha and Mariner engines, providing effective corrosion protection and extending the life of engine components. It features the Polipodio article YA022, model FM-YA-225, with an O.C. of 6J9-45371-01 and is suitable for 220 HP motors, made from durable ZN material.
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$ 38.65
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1-2 weeks delivery time The Trem L8246023 anodes are designed for Yamaha-Mariner engines, offering vital corrosion protection. Made from high-quality aluminum, these anodes ensure optimal performance and longevity, with a model code of YA022AL and an original code of 6J9-45371-01 for engines with 220 HP.
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$ 47.18
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1-2 weeks delivery time The Trem L8146118 anodes are designed to protect Yamaha and Mariner engines from corrosion, ensuring longevity and optimal performance. Made from high-quality zinc, they are essential for maintaining engine health, featuring the Polipodio Article YA016 and Model F-YA-18, with the original code 6N0-65251-00 YAMAHA 6C-6D-8C.
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$ 20.15
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1-2 weeks delivery time The Trem L8146117 anodes are designed for Yamaha and Mariner engines, providing essential protection against corrosion. With a model designation of F-YA-19 and an original code of 6L5-45251-02, these anodes are made of zinc and suitable for 3.5 HP Yamaha motors.
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$ 17.63
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1-2 weeks delivery time The Trem L8146115 anodes are specifically designed for Yamaha and Mariner engines, providing essential protection against corrosion. They are compatible with motors ranging from 25 to 75 HP and are made from zinc (ZN), with the original code 6H1-45251-02.
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$ 19.96
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1-2 weeks delivery time The Trem L8246115 anodes are designed for Yamaha and Mariner engines, providing essential protection against corrosion to enhance engine performance and longevity. Made from high-quality aluminum, they are compatible with motors ranging from 25 to 75 HP, with the original code 6H1-45251-02.
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$ 36.16
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1-2 weeks delivery time The Trem L8146304 anodes are designed for Yamaha and Mariner engines, providing essential protection to enhance performance and durability. They are compatible with motors ranging from 40 to 50 HP (2T-4T) and are made of high-quality zinc material.
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$ 26.28
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What do engine, sterndrive, and outboard anodes protect?
Engine, sterndrive, and outboard anodes provide sacrificial cathodic protection for submerged or water-exposed metal components. Depending on the installation, anodes may protect lower units, gear housings, trim tabs, transom brackets, propeller areas, cooling passages, and other metal parts that are exposed to galvanic corrosion.
The anode is designed to corrode preferentially, helping protect more valuable engine and drive components from deterioration.
Why is regular replacement of engine and drive anodes important?
Sacrificial anodes are gradually consumed while protecting the surrounding metal components, so they must be inspected and replaced before too much material is lost. A heavily worn or missing anode can no longer provide effective protection, increasing the risk of corrosion on the engine, sterndrive, or outboard assembly.
Inspection frequency depends on operating conditions, water type, vessel usage, and the electrical environment around the boat.
How can I choose the correct anode for an engine, sterndrive, or outboard motor?
The correct anode should match the engine or drive manufacturer, model, installation position, dimensions, mounting arrangement, and required anode material. OEM part numbers or cross-reference numbers are often the most reliable way to identify the correct replacement.
Because similar engines and sterndrives may use different anodes depending on model year or configuration, compatibility should always be checked before installation.