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 Specifically designed for Volvo 280 engines, this aluminum anode kit provides reliable corrosion defense in marine environments.
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$ 74.46
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1-2 weeks delivery time This aluminum anode kit is made for Volvo 280 Dual Prop models, offering effective protection against corrosion in marine applications.
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$ 75.90
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1-2 weeks delivery time The Allpa Aluminum Anode Kit for the Volvo 290 model ensures long-lasting protection for marine equipment by preventing corrosion in harsh environments.
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$ 77.86
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1-2 weeks delivery time Tailored for Volvo 290 Dual Prop models, this aluminum anode kit ensures reliable protection against marine corrosion for extended engine life.
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$ 80.29
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1-2 weeks delivery time The Allpa Aluminum Anode Kit for Volvo DPH provides essential corrosion protection for marine equipment, made with durable aluminum for lasting performance.
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$ 61.50
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1-2 weeks delivery time Designed for Volvo folding propellers with 3 blades, this aluminum anode kit offers corrosion resistance in marine environments, ensuring longevity and performance.
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$ 42.98
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1-2 weeks delivery time This aluminum anode kit is designed for Volvo SX Drives, providing corrosion protection and ensuring optimal performance in marine environments.
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$ 119.71
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1-2 weeks delivery time Tailored for Volvo SX-A and DPS models, this aluminum anode kit ensures long-lasting protection against corrosion, safeguarding your marine equipment.
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$ 72.13
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1-2 weeks delivery time This zinc collar anode is specifically designed for Mercury Mercruiser Alpha 1 Generation 2 trim cylinders. It effectively prevents corrosion and serves as a replacement for OEM part 806105.
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$ 37.39
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1-2 weeks delivery time This aluminum anode is shaped like a horseshoe and is crafted for the Mercury Mercruiser Alpha 1 Gen 2 engines. It provides reliable corrosion resistance for the lift-ram assembly on your marine equipment.
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$ 9.26
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1-2 weeks delivery time Tailored for the Mercury Mercruiser Alpha 1 Gen 2 models, this aluminum plate anode ensures robust protection against corrosion in marine environments and is identified by its unique EAN.
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$ 38.06
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1-2 weeks delivery time This compact button-style aluminum anode is suitable for Mercury Mercruiser Alpha One and Bravo 1, 2, and 3 series. It delivers effective corrosion protection in a small yet durable design.
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$ 9.08
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1-2 weeks delivery time Crafted for the Mercury Mercruiser Bravo Gen 2 series, this horseshoe-shaped aluminum anode ensures corrosion protection for the lift-ram assembly on your stern drive system.
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$ 22.66
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1-2 weeks delivery time This aluminum plate anode is designed for the Mercury Mercruiser Bravo Gen 2 stern drives, offering excellent corrosion resistance and long-lasting durability.
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$ 31.80
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1-2 weeks delivery time This barrier carrier aluminum anode is made for the Mercury Mercruiser Bravo 2 stern drive. It delivers effective corrosion protection and is designed for long-term performance.
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$ 36.11
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1-2 weeks delivery time Designed for Mercury Mercruiser Bravo 2 engines, this aluminum anode with reference 43994 provides reliable corrosion resistance to extend the lifespan of your marine drive components.
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$ 36.02
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1-2 weeks delivery time The cutdown skeg aluminum anode is an essential replacement part for Mercury Mercruiser stern drives, protecting the skeg from corrosion and wear in saltwater conditions.
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$ 19.40
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1-2 weeks delivery time This circular plate aluminum anode is designed for Mercury Mercruiser engines, providing reliable corrosion protection for both outboard and sterndrive applications in saltwater environments.
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$ 18.39
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1-2 weeks delivery time Designed for Mercury Mercruiser outboards and sterndrives, this standard skeg aluminum anode protects the lower unit from corrosion and ensures long-lasting protection.
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$ 20.07
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1-2 weeks delivery time This aluminum outboard bar anode is intended for use with Mercury, Mariner, and Force outboards, offering corrosion protection and extending the engine’s lifespan.
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$ 22.51
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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.