Zinc anodes for boats, also known as marine zinc anodes or boat anodes, are sacrificial metal components used to protect the hull and underwater metal parts of boats and yachts from corrosion caused by galvanic currents in seawater.
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1-2 weeks delivery time The Osculati 43.224.41 zinc cone anode is engineered for Max Prop feathering propellers with shafts measuring 28 to 35 mm in diameter. Featuring a 42 mm internal bore and a secure 3-hole mounting system, this conical anode ensures tight, balanced installation and efficient galvanic protection in saltwater conditions. Designed for optimal fit and long-lasting corrosion defense on critical propulsion components.
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€ 20,38
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1-2 weeks delivery time The Osculati 43.224.61 zinc cone anode features a 44 mm internal diameter and is designed for Max Prop feathering propellers with 28 to 35 mm shafts. Made from high-purity zinc for saltwater protection, this anode includes a 6-hole mounting system for secure, balanced installation and optimal electrical continuity. Ideal for safeguarding sailboat propulsion components against galvanic corrosion.
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€ 16,40
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1-2 weeks delivery time The Osculati 43.224.62 zinc cone anode is designed for Max Prop feathering propellers with 35 to 45 mm shafts. It features a 47 mm internal diameter and a 6-hole mounting system to ensure reliable, symmetrical installation. Crafted from marine-grade zinc, this sacrificial anode offers robust galvanic protection for propulsion components in saltwater environments, minimizing maintenance and preventing electrochemical wear.
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€ 25,94
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1-2 weeks delivery time The Osculati 43.124.20 is an aluminium ogive-style anode designed for 20 mm propeller shafts and threaded M16x1.5. Engineered for streamlined hydrodynamic performance, this hybrid anode includes a replaceable internal zinc core (Osculati 43.225.00), offering long-term protection against galvanic corrosion in mixed metal assemblies. Ideal for vessels requiring lightweight and efficient shaft protection in saltwater environments.
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€ 45,07
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1-2 weeks delivery time The Osculati 43.124.25 aluminium ogive anode is engineered for 25 mm diameter propeller shafts with an 18x1.5 mm thread. Featuring a streamlined profile for reduced drag, this hybrid anode includes a replaceable zinc insert (code 43.225.00), combining lightweight construction with superior anti-corrosion performance. Ideal for saltwater environments where serviceability and protection are equally important.
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€ 45,07
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1-2 weeks delivery time The Osculati 43.124.30 aluminium ogive anode is designed for 30 mm propeller shafts and features a durable M20x1.5 threaded connection. It combines a hydrodynamic aluminium body with a replaceable zinc core (Osculati 43.230.00), offering long-lasting and efficient galvanic protection. Ideal for saltwater vessels with mixed-metal propulsion systems that demand both performance and serviceability.
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€ 55,76
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1-2 weeks delivery time The Osculati 43.124.35 is an aluminium ogive anode designed for 35 mm diameter propeller shafts, with a secure M24x2 threaded connection. It features a serviceable design with a replaceable zinc core (Osculati 43.235.00), delivering high-performance galvanic protection in saltwater environments. Ideal for vessels with mixed-metal drive systems needing reliable and streamlined shaft protection.
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€ 77,44
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1-2 weeks delivery time The Osculati 43.124.40 is a hydrodynamically shaped aluminium ogive anode designed for 40 mm propeller shafts with M26x2 threaded mounting. Fitted with a replaceable internal zinc plate (Osculati 43.240.00), it delivers effective, long-lasting galvanic protection in saltwater. Ideal for vessels operating with mixed-metal shaft systems requiring lightweight and serviceable anode solutions.
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€ 101,45
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1-2 weeks delivery time The Osculati 43.124.45 aluminium ogive anode is specifically designed for 45 mm propeller shafts with a secure M30x2 threaded connection. Engineered with a hydrodynamic shape and a replaceable internal zinc insert (Osculati 43.245.00), this hybrid anode provides robust sacrificial protection in saltwater. Perfect for marine propulsion systems with mixed-metal components demanding long-lasting, serviceable corrosion resistance.
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€ 130,52
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1-2 weeks delivery time The Osculati 43.124.46 aluminium ogive anode is built for 45 mm propeller shafts with a larger M33x2 thread, offering secure installation on heavy-duty marine drives. Featuring a replaceable zinc core (Osculati 43.245.00) and a hydrodynamic aluminium body, it delivers long-lasting corrosion protection in saltwater. Ideal for performance and commercial vessels requiring efficient, serviceable anode systems.
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€ 130,52
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1-2 weeks delivery time The Osculati 43.124.50 is an aluminium ogive anode for 50 mm propeller shafts with a heavy-duty M36x3 thread. Designed for long-term saltwater use, it features a replaceable internal zinc plate (Osculati 43.250.00), combining the light weight of aluminium with the strong electrochemical protection of zinc. Ideal for large propulsion systems requiring serviceable and hydrodynamically efficient shaft protection.
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€ 165,56
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1-2 weeks delivery time The Osculati 43.802.22 is a two-piece olive-style aluminium anode for 22 mm (7/8") propeller shafts. Designed for easy installation and reliable performance, it comes pre-fitted with stainless steel pins and nuts. Ideal for saltwater use, this anode provides effective galvanic protection for small to mid-sized shaft-driven vessels with minimal hydrodynamic disruption.
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€ 13,52
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1-2 weeks delivery time The Osculati 43.802.25 is an aluminium olive-type shaft anode designed for 25 mm propeller shafts. Featuring a split-body design with integrated stainless steel pins and nuts, it ensures easy installation and long-term galvanic protection. Ideal for saltwater vessels with exposed rotating shafts requiring effective corrosion defense and minimal hydrodynamic impact.
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€ 11,37
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1-2 weeks delivery time The Osculati 43.802.30 is a clamp-on aluminium olive anode designed for 30 mm (1") propeller shafts. Supplied with stainless steel pins and nuts, it ensures secure, corrosion-resistant installation. This anode provides efficient galvanic protection in saltwater environments, ideal for medium-sized vessels requiring reliable and hydrodynamically stable shaft shielding.
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€ 22,60
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1-2 weeks delivery time The Osculati 43.802.32 is a two-piece olive-type aluminium anode engineered for 31.8 mm (1"1/4) diameter propeller shafts. Supplied with corrosion-resistant stainless steel pins and nuts, it offers secure installation and dependable galvanic protection in saltwater. Ideal for shaft-driven marine systems requiring low-drag, serviceable anode solutions.
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€ 17,93
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1-2 weeks delivery time The Osculati 43.802.35 is a two-piece olive-style aluminium anode engineered for 35 mm (1"3/8) propeller shafts. Designed for quick installation and reliable saltwater performance, it comes complete with stainless steel pins and nuts for a secure, corrosion-resistant fit. Ideal for shaft-driven vessels needing long-lasting galvanic protection with minimal hydrodynamic disruption.
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€ 19,75
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1-2 weeks delivery time The Osculati 43.802.38 is an olive-style, clamp-on aluminium anode engineered for 38 mm (1"1/2) propeller shafts. Designed for easy installation, it features a two-piece body with stainless steel pins and nuts for secure and corrosion-resistant attachment. Ideal for marine applications requiring durable, hydrodynamic galvanic protection in saltwater.
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€ 17,39
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1-2 weeks delivery time The Osculati 43.802.40 is a split-body aluminium olive anode designed for 40 mm propeller shafts. It includes stainless steel pins and nuts for secure installation, offering robust galvanic protection in saltwater environments. Its streamlined clamp-on design allows easy fitting without shaft removal, making it ideal for regular maintenance on mid-to-large marine drivetrains.
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€ 23,67
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1-2 weeks delivery time The Osculati 43.802.44 is a two-piece olive-style aluminium anode tailored for 44 mm (1"3/4) propeller shafts. Designed with stainless steel pins and nuts for secure attachment, it provides strong galvanic protection in saltwater environments. Ideal for medium-to-large vessels, this clamp-on anode ensures streamlined performance and simplified maintenance.
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€ 22,95
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1-2 weeks delivery time This propeller shaft aluminium anode with a 45 mm hole is specifically designed to protect marine shafts from galvanic corrosion. The Osculati 43.802.45 is manufactured from high-grade aluminium and equipped with stainless steel pins and nuts to ensure secure mounting and optimal electrical contact. Suitable for saltwater environments, this anode provides long-lasting performance and is ideal for vessels with aluminium or mixed-metal components.
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€ 23,57
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How do zinc anodes protect marine engines and outboard motors from corrosion?
Zinc anodes, also known as sacrificial anodes, protect marine engines and outboard motors by corroding in place of more important metal parts, such as the hull or outboard components. By attaching hull zinc anodes or trim tab anodes, the less noble zinc metal is sacrificed when placed in an electrolyte solution like saltwater, preventing corrosion of the engine and other vital boat components. Other anodes, like aluminum and magnesium, are also used based on the water type, but zinc remains the popular choice for saltwater environments due to its effective corrosion prevention.
The right choice of marine anodes, whether zinc, aluminum, or magnesium, can greatly extend the lifespan of your boat and its components. Products like the boat lift zinc anode and trim tab anode help protect specific areas from galvanic corrosion. Using high-quality anodes at unbeatable prices is a smart investment for boaters who want to store their boat safely and protect outboard engines and other critical parts. Even components like 316 stainless steel cables benefit from reduced exposure to corrosive damage when effective sacrificial anodes are in place.
How do aluminum, zinc, and magnesium anodes differ in protecting a boat?
Aluminum, zinc, and magnesium anodes all serve as sacrificial metals to protect boats from corrosion, but they perform differently based on the environment. Zinc anodes are commonly used in saltwater, whereas aluminum anodes offer versatility for both salt and brackish water, providing more efficient protection due to their lighter alloy composition. Magnesium anodes are best suited for freshwater applications as they are a more reactive, "less noble" metal, ideal for preventing corrosion in low salinity environments, such as lakes and rivers.
Why is anode placement on the hull plate important for effective corrosion protection?
Proper placement of boat zinc anodes on the hull plate is crucial for effective corrosion protection, as it ensures the sacrificial zinc can adequately neutralize galvanic currents and protect vulnerable metal areas. Anodes like martyr anodes, rudder zincs, and plate zinc are strategically placed to cover high-risk spots on a metal boat, preventing corrosion from spreading. Using a zinc anode kit helps streamline the placement process, ensuring a comprehensive approach to corrosion protection for your boat and its underwater components.
For a complete corrosion prevention solution, explore our Anodes for Aluminium Boats, designed for maximum durability and efficiency.
Are there any specific maintenance practices for prolonging the lifespan of marine fuel pumps?
Regularly changing the boat motor fuel filter is essential to prevent contaminants from reaching the fuel pump, ensuring its longevity and optimal performance. Additionally, keeping the entire fuel system clean and free from debris is crucial in maintaining the efficiency of the marine fuel pump, which plays a vital role in supplying clean fuel to the engine.
For enhanced protection against corrosion in saltwater environments, consider installing Boat Anodes For Saltwater.