Boat Anodes
Featured Brands
- Camp Company®9" L x 3" W x 1.25" H Zinc Tear Drop Hull Anode with Straps (W6)9" L x 3" W x 1.25" H Zinc Tear Drop Hull Anode with Straps (W6) 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...Will provide the greatest reliabilityManufactured with functionality in mind$57.09
- Camp Company®Frigoboat™ 1.36" D Zinc Button Anode (E51525)Frigoboat™ 1.36" D Zinc Button 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...Will provide the greatest reliabilityManufactured with functionality in mind$9.74
- Camp Company®Sea Straner™ Zinc Transom Bar Anode (DOK)Sea Straner™ Zinc Transom Bar 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...Will provide the greatest reliabilityManufactured with functionality in mind$12.47
- Camp Company®Zinc Keel Cooler Z1 Anode (Z1)Zinc Keel Cooler Z1 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$16.66
- Camp Company®Zinc Keel Cooler Z2 Anode (Z2)Zinc Keel Cooler Z2 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$20.02
- Camp Company®Zinc Keel Cooler Z3 Anode (Z3)Zinc Keel Cooler Z3 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$32.48
- Camp Company®Zinc Pencil Anode W/O Plug (838929)Zinc Pencil Anode without Plug (838929) 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...Will provide the greatest reliabilityManufactured with functionality in mind$10.93
- Camp Company®Zinc Transom Bar Anode (X473)Zinc Transom Bar 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$14.27
- Performance Metals®1.5" L x 0.5" D 3/8" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-1E)1.5" L x 0.5" D 3/8" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-1E) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$12.24
- Performance Metals®1.75" L x 0.375" D 1/4" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-0)1.75" L x 0.375" D 1/4" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-0) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$10.68
- Performance Metals®1.875" O.D Aluminum Rudder/Trim Tab Anode (R1875A)1.875" O.D Aluminum Rudder/Trim Tab Anode (R1875A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$8.87
- Performance Metals®2" L x 0.5" D 3/8" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-1)2" L x 0.5" D 3/8" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-1) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel....Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$12.31
- Performance Metals®2" L x 0.625" D 1/2" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-2)2" L x 0.625" D 1/2" NPT Aluminum Pencil Anode with Stainless Steel Plug (CE-2) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$17.28
- Performance Metals®2.81" O.D Aluminum Rudder/Trim Tab Anode (R2813A)2.81" O.D Aluminum Rudder/Trim Tab Anode (R2813A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$13.48
- Performance Metals®3.25" L x 1.25" W x 0.50" H Aluminum Rectangular Hull Plate Anode (HDOKA)3.25" L x 1.25" W x 0.50" H Aluminum Rectangular Hull Plate Anode (HDOKA) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$9.04
- Performance Metals®3.38" L x 1.75" W x 0.5" H Aluminum Tear Drop Hull Anode (T20A)3.38" L x 1.75" W x 0.5" H Aluminum Tear Drop Hull Anode (T20A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$11.39
- Performance Metals®3.75" O.D Aluminum Rudder/Trim Tab Anode (R3750A)3.75" O.D Aluminum Rudder/Trim Tab Anode (R3750A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$17.15
- Performance Metals®4.40" L x 2.10" W x 0.75" H Aluminum Oval Hull Plate Anode (HM24A)4.40" L x 2.10" W x 0.75" H Aluminum Oval Hull Plate Anode (HM24A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$11.35
- Performance Metals®5" L x 2" W x 0.88" H Aluminum Tear Drop Hull Anode (T21A)5" L x 2" W x 0.88" H Aluminum Tear Drop Hull Anode (T21A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$12.43
- Performance Metals®5" O.D Aluminum Rudder/Trim Tab Anode (R5000A)5" O.D Aluminum Rudder/Trim Tab Anode (R5000A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$27.71
- Performance Metals®6.25" L x 2.75" W x 0.76" H Aluminum Rectangular Hull Plate Anode (HC3A)6.25" L x 2.75" W x 0.76" H Aluminum Rectangular Hull Plate Anode (HC3A) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$22.62
- Performance Metals®8.50" L x 4.25" W x 1.12" H Aluminum Oval Hull Plate Anode (H406A)8.50" L x 4.25" W x 1.12" H Aluminum Oval Hull Plate Anode (H406A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$57.12
- Performance Metals®9.25" L x 3.37" W x 0.76" H Aluminum Oval Hull Plate Anode (HM25A)9.25" L x 3.37" W x 0.76" H Aluminum Oval Hull Plate Anode (HM25A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$31.25
- Performance Metals®9.25" L x 3.37" W x 1" H Aluminum Oval Hull Plate Anode (H404A)9.25" L x 3.37" W x 1" H Aluminum Oval Hull Plate Anode (H404A) 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...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$31.40
- Performance Metals®Aluminum Button Anode (00128A)Aluminum Button 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$14.30
- Performance Metals®Aluminum Rear Gearcase Anode (00201A)Aluminum Rear Gearcase 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$16.40
- Performance Metals®Bennet™ 3.75" L x 1.13" W x 0.5" H Aluminum Trim Tab Anode Kit (2 Pieces) (HBNTA)Bennet™ 3.75" L x 1.13" W x 0.5" H Aluminum Trim Tab Anode Kit (2 Pieces) by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel....Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$26.07
- Performance Metals®Boater's Dream™ 12" L x 6" W x 0.55" H Aluminum Rectangular Hull Plate Anode (HYAA)Boater's Dream™ 12" L x 6" W x 0.55" H Aluminum Rectangular Hull Plate Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel....Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$72.62
- Performance Metals®Diver's™ 5.5" L x 6" W x 0.55" H Aluminum Rectangular Hull Plate Anode (HDDRA)Diver's™ 5.5" L x 6" W x 0.55" H Aluminum Rectangular Hull Plate Anode by Performance Metals®. Superior Performance Metals anodes are designed to provide ultimate corrosion protection for steel and aluminum parts of your vessel. Made...Designed to deliver corrosion control unmatched by the competitionCrafted from superior-grade aluminum alloy$39.30
- Seachoice®1.875" O.D Aluminum Rudder Anode (95601)1.875" O.D Aluminum Rudder Anode (95601) 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 replacement boat...The highest level of quality and craftsmanshipMade to guarantee exceptional reliability$35.39
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.