Boat Shaft & Propeller Anodes
- Martyr®Aluminum Clamp Shaft AnodeAluminum Clamp Shaft Anode 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$17.90 - $60.42
- Martyr®Zinc Clamp Shaft AnodeZinc Clamp Shaft Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$20.25 - $71.49
- Martyr®Aluminum Barrel Collar Shaft Anode with Allen ScrewAluminum Barrel Collar Shaft Anode with Allen Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$15.33 - $104.93
- Martyr®Autoprop™ Zinc Propeller AnodeAutoprop™ Zinc Propeller Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$38.96 - $47.02
- Martyr®Johnson/Evinrude Aluminum Bearing Carrier AnodeAluminum Bearing Carrier Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$26.98
- Martyr®Magnesium Barrel Collar Shaft Anode with Allen ScrewMagnesium Barrel Collar Shaft Anode with Allen Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$32.59 - $67.29
- Martyr®Magnesium Propeller AnodeMagnesium Propeller Anode 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$48.22 - $89.01
- Martyr®Mariner Zinc Donut AnodeZinc Donut Anode 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$18.67
- Martyr®Max Prop™ Aluminum Propeller AnodeMax Prop™ Aluminum Propeller Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$26.11 - $38.86
- Martyr®Max Prop™ Zinc Propeller AnodeMax Prop™ Zinc Propeller Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$28.64 - $40.67
- Martyr®MerCruiser Aluminum Bearing Carrier AnodeAluminum Bearing Carrier Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$33.38 - $37.77
- Martyr®MerCruiser Aluminum Propeller AnodeAluminum Propeller Anode 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$31.45 - $105.00
- Martyr®MerCruiser Magnesium Bearing Carrier AnodeMagnesium Bearing Carrier Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$28.39 - $48.89
- Martyr®MerCruiser Magnesium Propeller AnodeMagnesium Propeller Anode 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$31.96 - $126.83
- Martyr®MerCruiser Zinc Bearing Carrier AnodeZinc Bearing Carrier Anode 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$42.79 - $49.42
- Martyr®MerCruiser Zinc Propeller AnodeZinc Propeller Anode 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$26.53 - $109.07
- Martyr®Mercury Zinc Bearing Carrier AnodeZinc Bearing Carrier Anode 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$49.42
- Martyr®Volvo Penta Aluminum Bearing Carrier AnodeAluminum Bearing Carrier Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$27.66 - $36.98
- Martyr®Volvo Penta Magnesium Bearing Carrier AnodeMagnesium Bearing Carrier Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$25.70 - $35.39
- Martyr®Volvo Penta Zinc Bearing Carrier AnodeZinc Bearing Carrier Anode 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$22.34 - $43.74
- Martyr®Volvo Penta Zinc Propeller Anode KitZinc Propeller 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$31.85 - $42.87
- Martyr®Yamaha Zinc Donut AnodeZinc Donut Anode 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$18.67
- Martyr®Zinc Barrel Collar Shaft Anode with Allen ScrewZinc Barrel Collar Shaft Anode with Allen Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$20.93 - $96.69
- Martyr®Zinc Barrel Collar Shaft Anode with Slotted ScrewZinc Barrel Collar Shaft Anode with Slotted Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$21.33 - $73.14
- Martyr®Zinc Donut AnodeZinc Donut Anode 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$18.67
- Martyr®Zinc Donut Collar Shaft Anode with Allen ScrewZinc Donut Collar Shaft Anode with Allen Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$25.21 - $57.65
- Martyr®Zinc Donut Collar Shaft Anode with Slotted ScrewZinc Donut Collar Shaft Anode with Slotted Screw 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$23.27 - $34.91
- Martyr®Zinc Line Cutter AnodeZinc Line Cutter Anode 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...Guaranteed to provide exceptional corrosion protectionManufacture to the latest US military alloy specifications$26.04 - $35.04
- Martyr®Zinc Propeller AnodeZinc Propeller Anode 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$25.09 - $90.07
- Camp Company®Volvo Penta 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$20.07 - $44.18
Galvanic corrosion is a serious issue that threatens virtually any vessel that has metal parts. It may affect hull constructions, drivetrain parts, steering components, etc., even if they are made of stainless steel, brass, or other materials known for their corrosion resistance. Actually, galvanic corrosion is an electrochemical reaction that occurs between two or several different metals covered with electrolyte, i.e. fresh or salt water acting as a conductive environment. In order to save valuable parts, it's recommended to add another metal, less noble than those you need to protect.
Sacrificial anodes are made of such metals and are meant to save other components from galvanic corrosion. In most cases, the anodes are manufactured from zinc, aluminum, or magnesium and shaped to provide reliable contact with the parts they protect. The choice of material is crucial to ensure adequate yet long-lasting protection, and it depends on the type of water (salt of fresh). There are barrel and donut anodes for shafts, tapered models for propellers, special anodes for bearing carriers, and other types of anodes designed specifically for certain boat engine makes and models. A large assortment of boat shaft & propeller anodes is available in our online store.