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.
|
1-2 weeks delivery time Compatible with both Yamaha and Honda outboards, this cutdown skeg aluminum anode offers solid protection against electrolysis in marine settings. It carries article number 9017100A and reference 6644537101.
|
$ 20.98
-
+
| ||
|
1-2 weeks delivery time Ideal for Yamaha and Honda outboards, this small block aluminum anode provides dependable protection in corrosive saltwater environments. Its article number is 9017103A and reference 6E04525111.
|
$ 20.61
-
+
| ||
|
1-2 weeks delivery time Specifically made for Honda outboards (75–115HP), this large magnesium anode bar (OEM 06411-ZW1-000) ensures optimal protection against corrosion in demanding marine conditions.
|
$ 88.78
-
+
| ||
|
1-2 weeks delivery time This small magnesium anode bar is tailored for Honda outboards (35–50HP) with OEM reference 06411-ZV5-000, providing dependable corrosion resistance for compact marine engines.
|
$ 34.53
-
+
| ||
|
1-2 weeks delivery time Designed for Alpha 1 Gen 2 outboard engines from 1991 onward, the Allpa Magnesium Anode Kit ensures comprehensive corrosion protection for long-term marine engine performance.
|
$ 131.54
-
+
| ||
|
1-2 weeks delivery time Made for Alpha 1 Gen 1 engines produced between 1983 and 1992, this Allpa Magnesium Anode Kit provides targeted corrosion protection in marine environments.
|
$ 144.95
-
+
| ||
|
1-2 weeks delivery time Suited for Bravo 3 engines from 2004 onwards, the Allpa Magnesium Anode Kit helps maintain engine performance with durable protection against galvanic corrosion.
|
$ 115.27
-
+
| ||
|
1-2 weeks delivery time The Allpa Magnesium Anode Kit for Bravo 1 engines (1988–present) delivers long-lasting corrosion defense, supporting marine engine reliability in saltwater environments.
|
$ 148.53
-
+
| ||
|
1-2 weeks delivery time Compatible with Bravo 2 engines from 1989 and Bravo 3 models up to 2005, this Allpa Magnesium Anode Kit offers dual-fit corrosion protection with dependable marine durability.
|
$ 180.94
-
+
| ||
|
1-2 weeks delivery time This Allpa Magnesium Anode Kit is specifically designed for Volvo 280 engines, delivering focused corrosion protection to preserve engine performance in marine use.
|
$ 124.43
-
+
| ||
|
1-2 weeks delivery time Tailored for dual prop systems on Volvo 280 engines, this Allpa Magnesium Anode Kit provides enhanced defense against corrosion in harsh saltwater environments.
|
$ 129.97
-
+
| ||
|
1-2 weeks delivery time Protecting Volvo 290 engines, the Allpa Magnesium Anode Kit combats corrosion effectively, ensuring extended engine life in marine applications.
|
$ 126.27
-
+
| ||
|
1-2 weeks delivery time Designed for the Volvo 290 dual prop system, this Allpa Magnesium Anode Kit offers high-grade corrosion resistance for improved marine engine durability.
|
$ 129.97
-
+
| ||
|
1-2 weeks delivery time The Allpa Magnesium Anode Kit for Volvo DPH engines ensures strong corrosion protection, built to withstand the demands of marine use in corrosive waters.
|
$ 105.40
-
+
| ||
|
1-2 weeks delivery time The Allpa Magnesium Anode Kit for Volvo Folding Prop 3-Blade is ideal for Volvo folding propellers with three blades and is compatible with Motor D2-55 A to F models, offering effective corrosion protection using magnesium material.
|
$ 52.46
-
+
| ||
|
1-2 weeks delivery time The Allpa Magnesium Anode Kit for Volvo SX is specifically designed for Volvo SX marine equipment, providing reliable corrosion resistance with high-quality magnesium construction.
|
$ 203.43
-
+
| ||
|
1-2 weeks delivery time Designed for Volvo SX-A/DPS systems, the Allpa Magnesium Anode Kit offers strong corrosion protection, making it a dependable choice for preserving marine components.
|
$ 99.21
-
+
| ||
|
1-2 weeks delivery time The Allpa Magnesium Anode Kit for Yanmar Saildrives includes components tailored for SD20, SD30, SD31, SD40, SD50, and SD61 models, ensuring essential protection against corrosion.
|
$ 195.10
-
+
| ||
|
1-2 weeks delivery time This Allpa Magnesium Anode is made for the bearing carrier of Mercruiser Alpha One Gen II models, matching OEM part 806105 to deliver precise fit and dependable protection.
|
$ 16.39
-
+
| ||
|
1-2 weeks delivery time Specifically crafted for the lift-ram horseshoe on Mercruiser Alpha One Gen II systems, this Allpa Magnesium Anode aligns with OEM part 806189 for effective corrosion resistance.
|
$ 17.95
-
+
| ||
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.