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.
|
1-2 weeks delivery time The Osculati 43.800.60 is a high-quality zinc olive anode designed for 60 mm marine propeller shafts. Manufactured from marine-grade zinc and supplied with stainless steel pins and nuts, it provides long-lasting galvanic protection in saltwater, securing the shaft and nearby metal components from electrolytic corrosion.
|
€ 49,60
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.800.63 zinc olive anode is designed to protect 63 mm (2" 1/2) marine propeller shafts from galvanic corrosion. Built from high-purity zinc and supplied with stainless steel pins and nuts, it provides secure installation and reliable sacrificial protection in saltwater environments.
|
€ 51,64
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.800.65 is a zinc olive anode designed for 65 mm marine propeller shafts. Made from high-purity zinc and equipped with stainless steel pins and nuts, it provides effective protection against galvanic corrosion in saltwater. Suitable for both recreational and commercial vessels with large-diameter shafts.
|
€ 51,62
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.800.70 zinc olive anode is designed for 70 mm marine propeller shafts. Built from high-purity zinc and supplied with stainless steel pins and nuts, it offers robust and long-lasting galvanic protection in saltwater environments. Ideal for large propulsion systems requiring reliable cathodic protection.
|
€ 77,07
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.800.75 zinc olive anode is engineered for 75 mm marine propeller shafts. Made from high-purity zinc and supplied with stainless steel pins and nuts, it delivers robust galvanic corrosion protection in saltwater environments. Ideal for large yachts and commercial vessels requiring stable and long-lasting cathodic protection.
|
€ 72,83
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.800.80 zinc olive anode is specifically designed for 80 mm propeller shafts. Manufactured from high-purity zinc and supplied with stainless steel pins and nuts, it provides strong and reliable galvanic protection in saltwater, helping extend the service life of marine propulsion components.
|
€ 67,58
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.20 is a zinc ogive anode designed for 20 mm shafts with a 16×1.5 mm threaded mount. It features a replaceable zinc core (part no. 43.225.00) for easy maintenance. Ideal for saltwater protection of shaft ends, this anode delivers targeted galvanic corrosion defense in high-risk areas.
|
€ 43,44
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.25 zinc ogive anode is designed for 25 mm propeller shafts and features an 18×1.5 mm threaded connection. Fitted with a replaceable zinc insert (Osculati 43.225.00), this streamlined anode provides targeted galvanic protection at the shaft end. Ideal for saltwater vessels requiring efficient, low-drag protection with easy maintenance.
|
€ 37,51
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.30 zinc ogive anode is engineered for 30 mm marine propeller shafts with a threaded M20×1.5 mount. Featuring a replaceable zinc insert (part no. 43.230.00), this anode provides streamlined galvanic protection for shaft tips operating in saltwater. Ideal for vessels requiring low-drag protection and easy maintenance.
|
€ 38,24
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.35 zinc ogive anode is designed for 35 mm propeller shafts with a threaded 24×2 mm connection. It features a replaceable internal zinc core (Osculati 43.235.00), offering localized, low-drag galvanic protection at the shaft tip. Ideal for saltwater applications where efficient maintenance and hydrodynamics are critical.
|
€ 52,98
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.40 zinc ogive anode is designed for 40 mm propeller shafts and features a 26×2 mm threaded mount. It includes a replaceable zinc insert (Osculati 43.240.00), ensuring targeted galvanic protection at the shaft tip while maintaining streamlined hydrodynamics. Ideal for saltwater propulsion systems where easy maintenance and long-term protection are key.
|
€ 52,99
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.45 zinc ogive anode is designed for 45 mm marine propeller shafts with a 30×2 mm thread. Featuring a replaceable internal zinc insert (Osculati 43.245.00), it provides reliable galvanic protection for shaft ends in saltwater. Its streamlined shape ensures reduced drag and efficient performance.
|
€ 91,01
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.46 is a zinc ogive anode for 45 mm propeller shafts with a 33×2 mm thread. Featuring a replaceable zinc insert (Osculati 43.245.00), it provides efficient and localized galvanic protection for shaft ends in saltwater. The streamlined shape ensures minimal drag and optimal hydrodynamics.
|
€ 127,74
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.122.50 zinc ogive anode is built for 50 mm marine propeller shafts with a 36×3 mm threaded end. Featuring a replaceable zinc core (Osculati 43.250.00), it provides efficient galvanic protection at the shaft tip while maintaining excellent hydrodynamic performance. Ideal for saltwater vessels where durability and serviceability are crucial.
|
€ 133,02
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.100.00 zinc anode is designed to fit over shaft nuts on Renault Marine propeller shafts (22/25 mm). With 16×2 mm internal thread and compact dimensions, it ensures direct galvanic protection of the shaft nut in saltwater. Ideal for fast and localized cathodic defense of metal components under high stress.
|
€ 19,11
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.601.04 is a heavy-type aluminium anode designed for rudder blade protection. With a diameter of 110 mm and total weight of 540 g per pair, it is optimized for saltwater use and is supplied with bolts and nuts for secure installation. The pair format ensures symmetrical protection on both sides of the rudder.
|
€ 26,40
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.601.01 aluminium anode pair is designed for rudder blade protection on smaller vessels. With a diameter of 50 mm and total aluminium weight of 60 g per pair, it offers compact and reliable galvanic protection in saltwater. Supplied with bolt and nut for quick and secure installation on both sides of the rudder.
|
€ 6,65
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.601.02 is a heavy-duty aluminium anode set designed for rudder blade protection. Each pair includes two Ø70 mm discs weighing 160 g in total, making them ideal for medium-size vessels operating in saltwater. Supplied with a bolt and nut for secure and easy installation.
|
€ 11,16
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.601.03 is a heavy-duty aluminium anode pair for rudder blades, each with a diameter of 90 mm and total weight of 340 g (per pair). Engineered for saltwater use, it offers reliable protection for medium to large vessels. The set includes a mounting bolt and nut for straightforward symmetrical installation.
|
€ 19,01
-
+
| ||
|
1-2 weeks delivery time The Osculati 43.620.00 zinc anode set is designed for rudder blade protection on large vessels. With a diameter of 125 mm and total weight of 1350 g per pair, these anodes offer robust galvanic defense in saltwater. Sold as a pair and fitted with bolt and nut for secure and symmetrical installation.
|
€ 29,48
-
+
| ||
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.