Boat Anodes
Featured Brands
- Camp Company®Hamilton Zinc Propeller AnodeZinc Propeller Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$33.52
- Camp Company®MerCruiser Zinc Bearing Carrier AnodeZinc Bearing Carrier Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$23.09 - $24.97
- Camp Company®Mercury Zinc Propeller Nut AnodeZinc Propeller Nut Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$17.88 - $33.52
- Camp Company®Zinc Bow Thruster AnodeZinc Bow Thruster Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$28.90 - $63.80
- Camp Company®Zinc Propeller AnodeZinc Propeller Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$26.64 - $38.73
- Camp Company®Zinc Propeller Nut AnodeZinc Propeller Nut Anode by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected...Will provide the greatest reliabilityManufactured with functionality in mind$22.78 - $28.25
- Performance Metals®Aluminum Barrel Collar Shaft AnodeAluminum Barrel Collar Shaft Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made from a high-quality aluminum alloy...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$13.38 - $59.19
- Performance Metals®Johnson/Evinrude Aluminum Propeller Shaft AnodeAluminum Propeller Shaft Anode by Performance Metals®. Used on a wide range of Johnson and Evinrude outboard models. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$19.51
- Performance Metals®MerCruiser Aluminum Bearing Carrier AnodeAluminum Bearing Carrier Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made from a high-quality aluminum alloy that...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$18.69 - $22.21
- Performance Metals®MerCruiser Aluminum Propeller AnodeAluminum Propeller Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made from a high-quality aluminum alloy that includes...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$17.96 - $18.70
- Performance Metals®MerCruiser Aluminum Propeller Anode KitAluminum Propeller Anode Kit by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made from a high-quality aluminum alloy that...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$66.44
- Performance Metals®Volvo Penta Aluminum Bearing Carrier AnodeAluminum Bearing Carrier Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made from a high-quality aluminum alloy that...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$22.93 - $25.87
- Seachoice®Aluminum Barrel Collar Shaft Anode with Allen ScrewAluminum Barrel Collar Shaft Anode with Allen Screw by Seachoice®. Whether you want to restore the original appearance of your boat, make it operate the way it should or ensure your safety on the water, rely on Seachoice for prime...High-quality, cadmium-free anodesHigher protection than zinc$18.77 - $84.25
- Seachoice®Magnesium Barrel Collar Shaft Anode with Allen ScrewMagnesium Barrel Collar Shaft Anode with Allen Screw by Seachoice®. Whether you want to restore the original appearance of your boat, make it operate the way it should or ensure your safety on the water, rely on Seachoice for prime...High-quality, cadmium-free anodesHigher protection than zinc$27.54 - $54.69
- B&S Marine Anodes®MerCruiser Zinc Anode KitZinc Anode Kit by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without putting...Built to simplify your boat maintenanceSpecially made for marine applications$61.80 - $74.27
- B&S Marine Anodes®MerCruiser Zinc Button AnodeZinc Button Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$9.90
- B&S Marine Anodes®MerCruiser Zinc Gimbal Block AnodeZinc Gimbal Block Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$32.50
- B&S Marine Anodes®MerCruiser Zinc Trim Cylinder AnodeZinc Trim Cylinder Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results...Built to simplify your boat maintenanceSpecially made for marine applications$12.31 - $12.42
- B&S Marine Anodes®MerCruiser Zinc Trim Tab AnodeZinc Trim Tab Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$17.02 - $18.24
- B&S Marine Anodes®OMC Zinc Block AnodeZinc Block Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$20.05 - $20.56
- B&S Marine Anodes®Sea Ray™ Zinc Oval Hull Plate AnodeSea Ray™ Zinc Oval Hull Plate Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired...Built to simplify your boat maintenanceSpecially made for marine applications$56.61 - $96.71
- B&S Marine Anodes®Yamaha Zinc Bracket AnodeZinc Bracket Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$30.59
- B&S Marine Anodes®Yamaha Zinc Skeg AnodeZinc Skeg Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without putting...Built to simplify your boat maintenanceSpecially made for marine applications$24.24 - $28.54
- B&S Marine Anodes®Zinc Oval Hull Plate AnodeZinc Oval Hull Plate Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results...Built to simplify your boat maintenanceSpecially made for marine applications$37.52 - $40.83
- B&S Marine Anodes®Zinc Pencil Anode with Bronze PlugZinc Pencil Anode with Bronze Plug by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired...Built to simplify your boat maintenanceSpecially made for marine applications$13.21 - $20.52
- B&S Marine Anodes®Zinc Rectangular Hull Plate AnodeZinc Rectangular Hull Plate Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired...Built to simplify your boat maintenanceSpecially made for marine applications$26.02 - $206.19
- B&S Marine Anodes®Zinc Rectangular Hull Plate Anode W/O StrapsZinc Rectangular Hull Plate Anode without Straps by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to...Built to simplify your boat maintenanceSpecially made for marine applications$52.11 - $91.82
- B&S Marine Anodes®Zinc Rectangular Hull Plate Anode with StrapsZinc Rectangular Hull Plate Anode with Straps by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve...Built to simplify your boat maintenanceSpecially made for marine applications$116.78 - $178.94
- B&S Marine Anodes®Zinc Rudder/Trim Tab AnodeZinc Rudder/Trim Tab Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results...Built to simplify your boat maintenanceSpecially made for marine applications$13.21 - $50.63
- B&S Marine Anodes®Zinc Strainer AnodeZinc Strainer Anode by B&S Marine Anodes®. The longevity of your boat and the way it looks depend on the quality of the products you use for its maintenance. Only the finest products will allow you to achieve desired results without...Built to simplify your boat maintenanceSpecially made for marine applications$11.88 - $13.54
Corrosion is one of the major enemies of all marine equipment. Since various metal parts of a ship, boat or other vessel are in constant contact with salt water, they can degrade very quickly due to natural electrochemical reactions. These reactions occur because many boat parts are made from two or more types of metal. And when two dissimilar metals, for instance, a bronze propeller and a stainless steel propeller shaft, are physically connected and submerged in water, they technically start functioning as a battery. The water acting as an electrolyte transfers electrons from a more active metal (anode) to a less active one (cathode), thus producing current. To create electrons the more active metal dissolves, giving up pieces of itself (metal ions). This process is called galvanic corrosion.
To protect vital boat parts from galvanic corrosion you have to prevent the active metals from deteriorating due to electrical activity. The only way to do this is to add a metal that is more electrically active than both original metals. And that’s when sacrificial anodes come into play. These pieces of an active metal are specifically designed to give up electrons and deteriorate instead of boat metals. This means they sacrifice themselves to the electrical current, leaving original metals unaffected by the process of corrosion. Anodes are usually installed on such underwater parts as propellers, shafts, stern drivers, fittings, struts, etc. The main benefits of boat anodes are that they are inexpensive and don’t require any internal power source. Plus, they are easy to install following the instructions.
Sacrificial anodes have originally been manufactured from zinc alloy which was extremely easy to obtain. But nowadays boat anodes are available in three metals: zinc, aluminum, and magnesium, all having a different electrical potential and current capacity. Magnesium produces -1.6 Volts, aluminum – -1.1 Volts, and zinc -1.05 Volts. If, for instance, zinc is attached to the steel propeller shaft that generates only -0.6 Volts, you’ll get protecting voltage of –0.45 Volts. The higher the voltage difference the better the protection. But remember that using too many anodes can result in overprotection, which can cause the coating on the aluminum to disbond or even lift the paint off the steel hull. To ensure adequate protection boat anodes should be replaced when a half of the anode is eaten away by corrosion.
Zinc anodes are designed to work well in salt water but aren’t much effective if you’re boating in brackish or freshwater. Although they have been traditional for so many years, these anodes have recently become an environmental concern because they contain cadmium and are toxic to the marine environment. Aluminum anodes are becoming increasingly popular these days since they offer many benefits over traditional zinc anodes. First of all, they are more electrically active and deliver exceptional protection in both salt and brackish water, as well as work adequately in freshwater. Aluminum anodes last up to 50% longer and weigh much less than zinc ones. On top of this, they are completely safe for the environment. Magnesium anodes are perfect for use in freshwater where the electrolytic conductivity is low. However, they should not be used in salt or brackish water because magnesium is a very active metal and will dissolve very fast without you even noticing it. Just like aluminum, magnesium is cadmium-free and harmless to the aquatic life.