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 43.605.02 is a pair of heavy-duty zinc anodes designed for rudder blade protection on vessels operating in saltwater. With a diameter of 110 mm and a total zinc weight of 1360 g per pair, it offers reliable and symmetrical galvanic protection. Supplied with bolt and screw nut for secure installation.
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€ 38,30
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1-2 weeks delivery time The Osculati 43.599.00 is a compact, heavy-duty zinc anode set designed to protect rudder blades from galvanic corrosion. With a diameter of 50 mm and total zinc weight of 160 g per pair, this model is ideal for small boats in saltwater. Supplied with a bolt and screw nut for secure and easy symmetrical installation.
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€ 9,10
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1-2 weeks delivery time The Osculati 43.598.99 is a lightweight zinc anode pair for rudder blade protection, designed specifically for small boats or moderate salinity conditions. With a diameter of 50 mm and a total zinc weight of 90 g per pair, it offers cost-effective and efficient protection with minimal added mass. Sold with bolt and screw nut for fast symmetrical installation.
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€ 9,10
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1-2 weeks delivery time The Osculati 43.600.00 rudder blade anode pair is designed to protect marine rudders from galvanic corrosion in saltwater environments. Each set includes two high-purity zinc anodes with a total weight of 300 grams and a diameter of 70 mm. These lightweight anodes are ideal for small to medium vessels and are supplied complete with a bolt and screw nut for secure, straightforward installation.
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€ 10,26
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1-2 weeks delivery time Designed for heavy-duty rudder protection, the Osculati 43.600.01 zinc anode set offers high-efficiency galvanic corrosion resistance for saltwater vessels. Each pair includes two anodes with a combined zinc weight of 380 g and a diameter of 70 mm. The product also includes a bolt and screw nut for immediate, secure installation. Aluminium version also available at reduced weight.
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€ 11,44
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1-2 weeks delivery time The Osculati 43.605.00 rudder blade anode set is designed for light-duty protection in saltwater environments. Each pair consists of two high-purity zinc anodes with a combined weight of 500 g and a 90 mm diameter, making it suitable for mid-size rudders. Supplied with a bolt and screw nut, these anodes are ready for direct installation and long-lasting corrosion resistance.
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€ 15,59
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1-2 weeks delivery time The Osculati 43.605.01 zinc anode pair provides robust galvanic corrosion protection for rudder blades in saltwater environments. With a total zinc weight of 840 g and a 90 mm diameter, this heavy-duty set is ideal for medium to large vessels requiring extended service life. Aluminium version available at 340 g per pair. Supplied with bolt and screw nut for secure installation.
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€ 23,25
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1-2 weeks delivery time The Osculati 43.510.11 stern anode is cast from high-purity aluminium and weighs 770 g, offering optimal corrosion protection for stern structures in saltwater and brackish water environments. Measuring 100 mm in diameter and 40 mm in height, it provides a strong alternative to zinc or magnesium anodes, with reduced environmental impact and longer service life.
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€ 30,20
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1-2 weeks delivery time The Osculati 43.210.12 stern anode is built from high-purity aluminium and weighs 1100 g, providing robust sacrificial protection for submerged stern structures. With a base diameter of 125 mm and a height of 38 mm, this model ensures reliable corrosion resistance in saltwater and brackish water environments. Also available in zinc (2.7 kg) and magnesium (750 g) variants.
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€ 42,79
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1-2 weeks delivery time The Osculati 43.210.13 stern anode is made from high-purity aluminium, weighs 1300 g, and is designed for effective protection of stern-mounted metal components in saltwater or brackish environments. With a base diameter of 140 mm and height of 35 mm, it provides a compact yet high-capacity sacrificial surface. Also available in zinc (3 kg) and magnesium (830 g) variants.
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€ 45,28
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1-2 weeks delivery time The Osculati 43.210.21 stern anode is manufactured from high-purity magnesium and offers superior galvanic protection for vessels operating in freshwater. With a compact diameter of 100 mm and height of 40 mm, this 510 g anode is optimized for high electrochemical efficiency. Alternative versions available in zinc (1.96 kg) and aluminium (770 g) for different water conditions.
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€ 59,49
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1-2 weeks delivery time The Osculati 43.210.22 magnesium anode is designed for freshwater stern protection and delivers high electrochemical performance. Weighing 750 g with dimensions Ø125 mm × 38 mm, it ensures optimal corrosion resistance for underwater components. Also offered in zinc (2.7 kg) and aluminium (1.10 kg) versions for other water types.
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€ 56,36
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1-2 weeks delivery time The Osculati 43.210.23 magnesium anode is engineered for stern-mounted corrosion protection in freshwater environments. With a 140 mm base diameter, 35 mm height, and weight of 830 g, it ensures high-efficiency galvanic shielding. Alternative versions available in zinc (3 kg) and aluminium (1.3 kg) for other water conditions.
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€ 59,01
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1-2 weeks delivery time The Osculati 43.210.01 stern anode is constructed from high-purity zinc and weighs 1960 g, offering dependable protection against galvanic corrosion in saltwater environments. With dimensions Ø100 mm × 40 mm, this model is suitable for stern-mounted fittings and components. Also available in aluminium (770 g) and magnesium (510 g) versions for different water types.
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€ 54,70
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1-2 weeks delivery time The Osculati 43.210.05 stern zinc anode provides effective corrosion protection for underwater metal structures in saltwater environments. With a diameter of 120 mm, height of 40 mm, and total weight of 1880 g, it offers a compact yet powerful solution. Also available in aluminium (740 g); magnesium version not available for this size.
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€ 65,14
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1-2 weeks delivery time The Osculati 43.210.02 stern anode is built from high-purity zinc and weighs 2700 g, providing long-lasting corrosion protection for stern-mounted components in saltwater environments. With dimensions Ø125 mm × 38 mm, it offers robust surface coverage and stable galvanic efficiency. Also available in aluminium (1.10 kg) and magnesium (750 g) variants for other water conditions.
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€ 77,92
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1-2 weeks delivery time The Osculati 43.210.03 zinc anode is designed for heavy-duty cathodic protection of stern-mounted components in saltwater environments. With a diameter of 140 mm, height of 35 mm, and total zinc weight of 3000 g, it ensures reliable long-term performance. Alternative versions in aluminium (1.3 kg) and magnesium (830 g) are available for different water types.
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€ 80,70
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1-2 weeks delivery time The Osculati 43.902.21 Vetus-type aluminium anode is designed for marine engine and hull protection, offering 1070 g of high-purity aluminium. With overall dimensions of 247 × 63 × 30 mm, this model includes pre-drilled mounting slots (Ø32 mm and 13×25 mm) spaced 140 mm apart. Also available in zinc (2.30 kg) for saltwater applications.
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€ 43,31
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1-2 weeks delivery time The Osculati 43.902.22 Vetus-type anode is made from high-grade aluminium and weighs 1760 g. Measuring 350 × 68 × 36 mm, it features dual elongated bolt slots (13×25 mm), spaced 200 mm apart, and a Ø38 mm central hole for versatile mounting. Ideal for hull and engine protection in saltwater or brackish environments. Zinc version also available at 4.50 kg.
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€ 62,43
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1-2 weeks delivery time The Osculati 43.902.25 is a compact Vetus-type edged aluminium anode designed for hull or engine protection in saltwater and brackish conditions. Measuring 152 × 52 × 23 mm and weighing 390 g, it features offset bolt slots (11×15 mm), a central hole Ø11 mm, and reinforced side edges (B: 68 mm, H1: 29 mm). Also available in zinc (1.0 kg).
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€ 22,39
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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.