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 43.228.29 is a zinc sleeve-type pencil anode designed for Caterpillar 3208 marine engines. With a body diameter of 14 mm, body length of 26 mm, and a 7 mm unthreaded extension, it features a smooth Ø12 mm press-fit stem. Installed in the heat exchanger sleeve, it provides sacrificial protection from internal galvanic corrosion in saltwater-cooled engine systems.
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$ 9,93
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1-2 weeks delivery time Threaded sleeve pencil anode (Osculati 43.228.00) is designed for protecting heat exchangers in Caterpillar and Bukh marine engines, specifically models using reference 6L-2280. Manufactured with zinc alloy, it features a 12 mm diameter and 40 mm active length plus 10 mm for the threaded base. The 3/8" BSP thread ensures secure installation in heat exchanger sleeves to prevent galvanic corrosion.
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$ 17,62
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1-2 weeks delivery time The Osculati 43.228.91 pencil anode is a threaded zinc insert specifically designed for use in Caterpillar marine engine cooling systems referencing OEM part 6L-2284. With a 14 mm diameter and 32 mm active zinc body plus a 12 mm threaded base (5/16"), it ensures optimal protection against galvanic corrosion in saltwater environments.
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$ 15,39
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1-2 weeks delivery time Osculati 43.229.08 is a zinc pencil anode for Caterpillar marine engines using heat exchanger part reference 6L-3104. It features a 10 mm diameter, 38 mm active zinc body, and a 10 mm threaded section with 7/16" BSP thread. Designed for saltwater protection, this anode prevents galvanic corrosion inside the cooling circuit.
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$ 19,26
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Caterpillar 6L2283 Heat Exchanger Sleeve Pencil Anode Ø10x55+12 mm Thread 1/4'' - Osculati 43.228.30
1-2 weeks delivery time The Osculati 43.228.30 is a zinc pencil anode designed to protect Caterpillar marine engine heat exchangers (OEM ref. 6L2283) from internal galvanic corrosion. Featuring a 10 mm diameter, 55 mm active zinc length, and 12 mm threaded base with a 1/4'' BSP thread, this anode provides reliable performance in saltwater cooling circuits.
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$ 16,65
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Caterpillar 6L2283 Heat Exchanger Sleeve Pencil Anode Ø30x64+20 mm Thread 3/4'' - Osculati 43.228.50
1-2 weeks delivery time Osculati 43.228.50 is a heavy-duty zinc pencil anode for Caterpillar marine engine cooling systems. With a large 30 mm diameter and 64 mm active zinc section plus a 20 mm threaded base (3/4'' BSP), it is designed to provide robust protection against galvanic corrosion in high-capacity heat exchangers and saltwater environments.
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$ 36,41
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1-2 weeks delivery time The Osculati 43.229.09 is a zinc pencil anode designed for Caterpillar marine engines, replacing OEM part 7E-5076. It features a 16 mm diameter, 41 mm active zinc body, and a 9 mm threaded section with a 7/16'' BSP thread. This anode provides targeted corrosion protection for internal surfaces of marine heat exchangers in saltwater environments.
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$ 16,65
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1-2 weeks delivery time The Osculati 43.541.00 zinc pencil anode is designed for installation in Caterpillar engine cooling systems. It features a 10 mm diameter, 40 mm active zinc body, and an extended 18 mm threaded section with 3/8'' BSP thread. This anode is suitable for various Caterpillar heat exchanger sleeves, providing essential protection against internal corrosion in saltwater environments.
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$ 44,76
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1-2 weeks delivery time Osculati 43.548.00 is a heavy-duty threaded zinc pencil anode designed for use in GM and Caterpillar marine cooling systems. With a diameter of 16 mm, active zinc body length of 52 mm, and a 22 mm threaded section using 1/2'' BSP thread, it ensures secure installation and long-lasting corrosion protection in saltwater environments.
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$ 53,46
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1-2 weeks delivery time Osculati 43.229.27 is a compact conical zinc pencil anode for Cummins marine engines, designed for threaded M6 mounting in heat exchanger systems. With a 10 mm diameter, 20 mm active zinc body, and 8 mm threaded base, this anode provides targeted internal corrosion protection in tight or low-volume cooling circuits.
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$ 18,63
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1-2 weeks delivery time Osculati 43.229.26 is a conical zinc pencil anode designed for use in Cummins marine engine cooling systems. With a 16 mm maximum diameter, 31 mm active zinc body, and a 13 mm threaded base (3/8'' BSP), it provides secure mounting and effective internal protection against galvanic corrosion in heat exchangers.
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$ 19,61
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1-2 weeks delivery time The Osculati 43.229.10 is a conical zinc pencil anode with a 16 mm maximum diameter, 50 mm active zinc length, and 10 mm threaded base. Designed for Cummins marine heat exchangers using 7/16'' BSP thread, this anode offers extended protection for internal engine cooling passages exposed to saltwater corrosion.
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$ 23,06
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1-2 weeks delivery time Osculati 43.229.06 is a threaded zinc pencil anode with a diameter of 8 mm and a length of 30 mm, fitted with a 1/4'' gas (BSP) male thread. Designed for use in Isoterm heat exchangers, this compact anode offers localized corrosion protection in marine water-cooled systems, helping to extend the life of internal metallic components exposed to seawater.
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$ 39,46
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1-2 weeks delivery time Osculati 43.229.07 is a conical zinc pencil anode designed for AIFO–FPT (Iveco) marine engines, replacing OEM part 8105277. Featuring a 13 mm maximum diameter, 26 mm active zinc body, and a 7 mm smooth insertion base with a 10 mm diameter, this non-threaded anode is pressure-fitted into the exchanger body to protect internal surfaces from galvanic corrosion.
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$ 15,13
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1-2 weeks delivery time Osculati 43.229.05 is a conical zinc pencil anode with a 14 mm maximum diameter, 26 mm active length, and a smooth Ø12 mm mounting base (8 mm long), designed for use in Iveco FPT/AIFO marine heat exchangers. This non-threaded anode replaces OEM part 8105277 and provides internal corrosion protection in saltwater cooling systems.
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$ 9,93
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1-2 weeks delivery time The Osculati 43.229.23 is a conical zinc pencil anode for AIFO-FPT (Iveco) marine heat exchangers. With a 14 mm diameter, 40 mm active zinc length, and a 10 mm threaded base with M8 thread, it offers extended corrosion protection for internal cooling components exposed to saltwater. Compatible with OEM configurations based on reference 8105277.
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$ 18,87
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1-2 weeks delivery time Osculati 43.229.21 is a conical zinc pencil anode for AIFO–FPT (Iveco) heat exchangers, compatible with OEM reference 8105277/B. It features a 13 mm diameter conical body, 26 mm active zinc length, and an 8 mm smooth insertion base with a precision-fit Ø10.1 mm diameter. Designed for press-fit mounting in marine cooling systems.
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$ 15,13
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1-2 weeks delivery time This Osculati 43.229.22 conical pencil anode is specifically engineered for Iveco FPT/AIFO heat exchangers, matching OEM reference 8109743. Designed with a diameter of 10 mm and total length of 26 mm (18+8 mm), it features a smooth shaft with 7 mm outer diameter. Manufactured for direct compatibility with AIFO-FPT marine engines, it ensures optimal corrosion protection in heat exchanger systems, maintaining engine performance in harsh saltwater environments.
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$ 14,14
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Nanni Diesel & Mercedes Heat Exchanger Zinc Pencil Anode Ø10x17+9 Thread 16x1.5 - Osculati 43.229.04
1-2 weeks delivery time The Osculati 43.229.04 threaded pencil anode is designed for use in Nanni Diesel and Mercedes marine engine cooling systems. Measuring Ø10 mm in diameter with a total length of 26 mm (17+9 mm) and featuring a 16×1.5 mm thread, this zinc anode provides essential galvanic protection inside heat exchangers. Its compact conical design ensures secure fitting and corrosion prevention in saltwater operation environments.
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$ 41,73
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1-2 weeks delivery time The Osculati 43.229.02 zinc pencil anode is a threaded conical anode designed for VM marine engine heat exchangers. It features a 14 mm diameter and a total length of 30 mm (20+10 mm), with a standard M8 thread for easy installation. Made for direct integration into engine cooling systems, this anode protects critical components from galvanic corrosion during saltwater operation.
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$ 17,86
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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.