Boat Anodes
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Featured Brands
- Martyr®Volvo Penta Aluminum Triangle Anode KitAluminum Triangle Anode Kit by Martyr®. Looking to protect your boat from corrosion that can occur in salt, brackish or fresh water? Then premium-grade Martyr anodes are the way to go. Pressure die-cast and made of a specialized alloy...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$16.65
- Martyr®Yanmar Magnesium Anode KitMagnesium Anode Kit by Martyr®. Looking to protect your boat from corrosion that can occur in salt, brackish or fresh water? Then premium-grade Martyr anodes are the way to go. Pressure die-cast and made of a specialized alloy based on...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$42.89
- Martyr®Yanmar Zinc Anode KitZinc Anode Kit by Martyr®. Looking to protect your boat from corrosion that can occur in salt, brackish or fresh water? Then premium-grade Martyr anodes are the way to go. Pressure die-cast and made of a specialized alloy based on the...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$37.59
- B&S Marine Anodes®Mercury Zinc Cavitation Plate AnodeZinc Cavitation Plate Anode by B&S Marine Anodes®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...Built to simplify your boat maintenanceSpecially made for marine applications$21.08
- B&S Marine Anodes®Volvo Penta Zinc Transom Bar AnodeZinc Transom Bar Anode by B&S Marine Anodes®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...Built to simplify your boat maintenanceSpecially made for marine applications$27.26
- B&S Marine Anodes®Yamaha Zinc Handlebar AnodeZinc Handlebar Anode by B&S Marine Anodes®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Built to simplify your boat maintenanceSpecially made for marine applications$26.96
- B&S Marine Anodes®Yamaha Zinc LH Skeg AnodeZinc LH Skeg Anode by B&S Marine Anodes®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Built to simplify your boat maintenanceSpecially made for marine applications$25.17
- B&S Marine Anodes®Yamaha Zinc RH Skeg AnodeZinc RH Skeg Anode by B&S Marine Anodes®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Built to simplify your boat maintenanceSpecially made for marine applications$20.53 - $23.64
- B&S Marine Anodes®Zinc Pencil AnodeZinc Pencil 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$12.83 - $18.26
- Performance Metals®Evinrude Aluminum Anode KitAluminum Anode Kit by Performance Metals®. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish or fresh. Superior...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$42.83
- Performance Metals®Suzuki Aluminum Bar AnodeAluminum Bar Anode by Performance Metals®. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish or fresh.Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$17.86
- Performance Metals®Suzuki Aluminum Block AnodeAluminum Block Anode by Performance Metals®. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish or fresh.Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$9.45
- Performance Metals®Suzuki Aluminum Gear Case AnodeAluminum Gear Case Anode by Performance Metals®. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish or fresh.Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$9.98
- Performance Metals®Suzuki Aluminum Trim Tab AnodeAluminum Trim Tab Anode by Performance Metals®. Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish or fresh.Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$14.15
- Prime Line®Aluminum Clamp-On AnodeAluminum Clamp-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$29.84 - $44.54
- Prime Line®Johnson/Evinrude Magnesium Bolt-On AnodeMagnesium Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$16.37 - $37.69
- Prime Line®Mercury Marine Magnesium Bolt-On AnodeMagnesium Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$20.23 - $36.31
- Prime Line®Mercury Marine Zinc Bolt-On AnodeZinc Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$13.96 - $36.35
- Prime Line®OMC Magnesium Bolt-On AnodeMagnesium Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$36.42
- Prime Line®OMC Zinc Bolt-On AnodeZinc Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$16.37 - $38.14
- Prime Line®Suzuki Zinc Bolt-On AnodeZinc Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$8.68
- Prime Line®Volvo Penta Brass Screw-On Anode PlugBrass Screw-On Anode Plug by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$16.88
- Prime Line®Volvo Penta Magnesium Bolt-On AnodeMagnesium Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$33.45 - $45.49
- Prime Line®Volvo Penta Zinc Bolt-On AnodeZinc Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$28.97 - $46.23
- Prime Line®Volvo Penta Zinc Bolt-On G AnodeZinc Bolt-On G Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$30.10
- Prime Line®Volvo Penta Zinc Screw-On AnodeZinc Screw-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$11.60
- Prime Line®Yamaha Magnesium Bolt-On AnodeMagnesium Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$29.49
- Prime Line®Yamaha Zinc Bolt-On AnodeZinc Bolt-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$17.47 - $20.20
- Prime Line®Yanmar Zinc Screw-On G AnodeZinc Screw-On G Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$8.10 - $8.79
- Prime Line®Zinc Clamp-On AnodeZinc Clamp-On Anode by Prime Line®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship.Built to simplify your boat maintenanceSpecially made for marine applications$6.59 - $22.72
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.