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 L8244140 kit is designed for Suzuki outboard engines with 90 to 140 horsepower, featuring essential components that ensure optimal performance and reliability in marine applications. It includes four units of original reference 01213AL, one unit of 01212AL, and one unit of 01214AL, all made from durable aluminium for longevity and resistance to marine conditions.
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$ 33.69
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1-2 weeks delivery time The Trem L8246060 kit is specifically designed for Yamaha 40-60 HP four-stroke outboard motors, ensuring reliable performance and smooth operation with essential components, including three units of the original reference 65W-45251-00, one unit of 67C-45251-00, and one unit of 67C-45371-00.
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$ 32.90
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1-2 weeks delivery time The Trem L8240293 is a reliable kit designed for the Volvo Penta 290C, ensuring optimal performance and longevity for your marine engine. It includes parts with original references 875815 (Qty 1), 852835 (Qty 1), and 872793 (Qty 2), all made from durable aluminum to withstand demanding marine environments.
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$ 41.99
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1-2 weeks delivery time The Trem L8240294 is a specialized kit for the Volvo Penta Duo-Prop 290C, designed to enhance performance and durability for boating enthusiasts. It includes original parts (Ref. 875821, 852835, and 872793) and is crafted from high-quality aluminum for long-lasting use and corrosion resistance.
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$ 44.59
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1-2 weeks delivery time The Trem L8240233 kit is designed to enhance the performance and reliability of Volvo Penta SX-A/DPS engines, featuring high-quality aluminum construction for lightweight strength and corrosion resistance. It includes original parts with references 3841427 and 3883728, ensuring durability and optimal functionality for marine applications.
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$ 40.95
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1-2 weeks delivery time The Trem L8240235 is a specialized kit for Volvo Penta DPH systems, designed to enhance performance and durability. It includes original references 3588745 and 3863206, each with a quantity of one. Made from aluminum, the kit offers lightweight strength and excellent corrosion resistance.
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$ 40.03
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1-2 weeks delivery time The Trem L8240284 Kit is specifically designed for the Volvo Penta 280 Dual Pro engine, ensuring optimal performance and compatibility. It includes original references 875821 and 832598, each in a quantity of one, and is manufactured in aluminum for enhanced durability and reliability.
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$ 31.50
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1-2 weeks delivery time The Trem L8246300 Kit is designed for Yamaha 200-300 outboard motors, crafted from durable aluminum to ensure high-quality performance. It includes essential components with original references 6G54525101 and 69L4537100, each available in a quantity of one.
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$ 39.86
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1-2 weeks delivery time Thermostat for Mercury 2-cylinder EFI engines, maintaining precise engine temperature at 52°C for optimal performance, compatible with 9.9, 10, 15, and 20 EFI models, OEM 8M0139434.
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$ 20.96
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1-2 weeks delivery time Thermostat for Mercury engines 6-125 HP, regulating temperature at 48.8°C to prevent overheating and ensure efficient operation, OEM 14586.
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$ 20.96
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1-2 weeks delivery time Reliable thermostat for mid-range Mercury EFI engines from 30 HP to 60 HP, maintaining 48.8°C for smooth engine operation, OEM 8M0117413.
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$ 20.96
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1-2 weeks delivery time Honda outboard thermostat for larger engines, ensuring consistent operation at 60°C, compatible with BF175D, BF200D, BF225D, BF250A,D, OEM 19300-ZX2-003.
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$ 25.61
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1-2 weeks delivery time Thermostat for Honda outboards from BF75 to BFT100 models, maintaining stable 50°C engine temperature, OEM 19300-ZY6-003.
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$ 23.28
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1-2 weeks delivery time Precise thermostat for small and mid-sized Honda outboards, regulating temperature at 60°C to enhance performance, compatible with BF8D, BF15D, BF20D, BF90A, BF200, BF225A, OEM 19300-ZW9-003.
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$ 23.28
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1-2 weeks delivery time High-temperature thermostat for Honda outboards 25-130 HP, supporting reliable operation under heavy loads at 72°C, OEM 19300-ZV5-003.
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$ 23.28
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1-2 weeks delivery time Thermostat for Honda outboards ensuring reliable 60°C engine temperature regulation across multiple models, OEM 19300-ZY3-023.
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$ 23.28
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1-2 weeks delivery time Suzuki thermostat maintaining precise 60°C engine temperature for a wide range of engines from 2001 onward, OEM 17670-93J00.
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$ 25.61
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1-2 weeks delivery time Thermostat for Suzuki outboards providing consistent 60°C temperature regulation for both older and newer models, OEM 1770-90J10.
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$ 27.94
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1-2 weeks delivery time Efficient cooling thermostat for recent Suzuki outboard engines, maintaining 50°C, compatible with DF100A to DF300AP models, OEM 17670-90J20.
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$ 27.94
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1-2 weeks delivery time Compact and durable thermostat for low to mid-power Suzuki outboard engines, keeping engine temperature stable. Compatible with DF2.5 (2006), DF4, DF5, DF6 (2002>), DF9.9B, DF15A, DF20A (2013). OEM numbers: 17670-91J01, 17670-91J00. Operating temperature: 50°C.
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$ 49.32
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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.