Anode kits are essential for protecting outboard engines, sterndrives, and other submerged boat components from galvanic corrosion.
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1-2 weeks delivery time The MgDuff Ring Anode, with product number CM358407Z, is designed for Volvo Penta SD 130 and 150 models from 2002 to 2003. Made of zinc, it offers effective corrosion protection in saltwater environments. The anode weighs 1.48 kg, has an outside diameter of 108 mm, an inside diameter of 45 mm, and a height of 40 mm.
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$ 65.47
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1-2 weeks delivery time The MgDuff Skeg Anode is a vital component for protecting Yamaha outboard motors ranging from 50 to 90 HP from corrosion, making it ideal for saltwater use. It is also compatible with Parsun and Painier models, featuring a product number of CM6884537102Z, and has a weight of 0.48 kg, an outside diameter of 92 mm, a height of 77 mm, and a thread size of M10 x 1.25.
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$ 25.61
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1-2 weeks delivery time The Zinc Honda skeg anode is designed for saltwater applications, offering durable protection against corrosion. It weighs 0.27 kg and has an outside diameter of 96 mm and a height of 57 mm, with a stud size of 8 mm. The product number is CM6644537101Z.
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$ 22.89
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1-2 weeks delivery time The MgDuff Skeg Anode is a crucial zinc component designed to protect Mercury Marine outboard motors, specifically compatible with models F25, F30, F40, and F50 manufactured in 1998 and later. With an outer diameter of 3.65 inches, inner diameter of 0.36 inches, and a thread size of 5/16"-18 x 3/4" or M8 x 20mm, this durable anode helps keep engine components in optimal condition, ensuring long-lasting performance against corrosion.
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$ 21.73
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1-2 weeks delivery time The MgDuff Skeg Anode, with product number CM31640Z, is a zinc anode designed for Mercury and Mercruiser outboards as well as Honda engines, specifically for saltwater use. Weighing 0.55 kg and measuring 92 mm in outside diameter and 84 mm in height, it features a thread size of 7/16-14 UNC, providing essential corrosion protection for your equipment in marine environments.
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$ 20.22
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1-2 weeks delivery time The MgDuff Skeg Anode is a zinc anode designed for Yamaha motors, providing vital corrosion protection in saltwater environments. Weighing 0.63 kg and featuring an outside diameter of 99 mm and a height of 91 mm, it has a thread size of M10 x 1.25, ensuring optimal skeg protection and functionality.
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$ 39.50
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1-2 weeks delivery time The MgDuff Zinc Anode is designed for Yamaha outboard motors, offering vital protection against corrosion in saltwater environments. With a product number of CM6J94537101Z, this high-quality anode weighs 0.5 kg, has an outside diameter of 100 mm, a height of 84 mm, and a thread size of M10 x 1.25, ensuring your motor stays in optimal condition.
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$ 30.75
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1-2 weeks delivery time The MgDuff Skeg Anode is specifically designed for Yamaha outboard motors with horsepower ranging from 150 to 200 HP. Made of zinc, this anode is ideal for saltwater environments and helps protect your motor from corrosion, ensuring durability and reliability. It weighs 0.42 kg, has an outside diameter of 92 mm, a height of 76 mm, and a thread size of M10 x 1.25, with the product number CM6E54537101Z.
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$ 76.15
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1-2 weeks delivery time The MgDuff Skeg Anode is specifically designed for Yamaha outboard motors with power ratings between 200 and 300 HP, providing crucial protection against corrosion in saltwater environments. Made from zinc, it weighs 0.52 kg and features an outside diameter of 99 mm, a height of 91 mm, and a thread size of M10 x 1.25, ensuring longevity and optimal performance for your motor. Product number: CM69L4537100Z.
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$ 56.60
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1-2 weeks delivery time The MgDuff Skeg Anode is compatible with Yamaha engines ranging from 60 to 100 HP, designed specifically for saltwater use and also suitable for Parsun and ALLPASS engines. It features a product number of CM6H14525102Z, weighs 0.49 kg, and has dimensions of 203 mm in length, 36 mm in width, and 17 mm in height, with a 6 mm stud size and two fixing holes spaced 101 mm apart.
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$ 24.26
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1-2 weeks delivery time The MgDuff Transom Bar Anode (Product Number: CM433580Z) is designed for Johnson and Evinrude engines ranging from 60 to 300 horsepower, making it ideal for power trim and tilt applications. Weighing 0.68 kg and measuring 175 mm x 34 mm x 21 mm, it effectively protects your boat from corrosion.
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$ 38.77
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1-2 weeks delivery time The MgDuff Transom Plate Anode, with product number CM3855411A, is an essential aluminium component designed for Volvo Penta SX Drive systems, providing protection for boats in salt and brackish waters. It weighs 0.41 kg and measures 145 mm in length, 103 mm in width, and 37 mm in height, featuring a 1/4-20 UNC thread stud size, two fixing holes with 113 mm centers.
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$ 74.87
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1-2 weeks delivery time The MgDuff Transom Plate Anode Zinc (Product Number: CM3855411Z) is specifically designed for the Volvo Penta SX Drive, providing essential protection against corrosion in saltwater environments. Weighing 1.04 kg, it has a body length of 145 mm, a width of 103 mm, and a height of 37 mm. The anode features a 1/4-20 UNC thread stud size, two fixing holes positioned at 113 mm centers.
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$ 64.12
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1-2 weeks delivery time The MgDuff Triangle Anode is specifically designed for Volvo Penta models 290, 290DP, SX, and DP-X, offering essential protection for your boat's metal components in salt and brackish water. With a product number of CM872793A, it weighs 0.05 kg and measures 66 mm in length, 38 mm in width, and 13 mm in height. It features a 5 mm stud size, one fixing hole with a diameter of 6 mm.
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$ 13.25
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1-2 weeks delivery time The MgDuff Trim Tab Anode, with product number CM76214M, is a high-quality magnesium accessory designed for Mercury Outboard and Mercruiser Sterndrive engines. Measuring 90mm in length and width, and 24mm in depth, this anode effectively protects your engine from corrosion, ensuring enhanced durability and longevity, with a fixing hole that accommodates a 7/16 UNC bolt measuring 1 3/4" long.
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$ 22.15
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1-2 weeks delivery time The MgDuff Trim Tab Anode, with product number CM31640M, is specifically designed for Mercury, Mercruiser, and Honda outboard motors, offering effective corrosion protection in freshwater applications. Made from magnesium, it features a weight of 0.14 kg, an outside diameter of 92 mm, a height of 84 mm, and a thread size of 7/16-14 UNC, ensuring longevity and optimal performance for your boat's components.
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$ 36.08
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1-2 weeks delivery time The MgDuff Trim Tab Anode is a high-quality zinc anode designed to protect various outboard motors, particularly in saltwater environments. With product number CM61N4525101Z, it is compatible with Yamaha 8 to 60 HP models, as well as other brands like Parsun and ALLPASS. Weighing 0.26 kg, it features an anode body length of 80 mm, width of 59 mm, height of 26 mm, a 5 mm stud size, and one fixing hole, ensuring durability and longevity for your equipment.
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$ 46.92
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1-2 weeks delivery time The MgDuff Wedge Anode is specifically designed for Honda 75 HP engines, including V6 40, 50, and 115 EFI models. Made from high-quality aluminum, it helps protect against corrosion in salt and brackish water, ensuring durability and reliability. Key specifications include a product number of CM826134A, a weight of 0.10 kg, and dimensions of 76 mm in length, 30 mm in width, and 23 mm in height, with a 5 mm stud size and one 6 mm fixing hole.
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$ 16.80
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1-2 weeks delivery time The MgDuff Wedge Anode is designed for Honda 75 HP V6 outboard engines, providing essential corrosion protection in saltwater environments. With a product number of CM826134Z, it weighs 0.25 kg and has dimensions of 76 mm in length, 30 mm in width, and 23 mm in height. The anode features a 5 mm stud size, one fixing hole with a 6 mm diameter, ensuring durability and longevity for your engine components.
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$ 18.32
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1-2 weeks delivery time The MgDuff Zinc Motor Saildrive Anode is made of zinc and designed for Yanmar motor saildrive systems, providing protective performance and supplied per piece. Brand: MgDuff (CM19644002660Z), Barcode: 628309127190.
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$ 86.32
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What is an outboard engine anode, and how does it protect a motor from galvanic corrosion?
An outboard engine anode is a sacrificial metal component, such as a trim tab anode or shaft anode, designed to protect the motor from galvanic corrosion by attracting corrosive elements in the water. Installed on parts like the motor's ventilation plate, transom bracket, or propeller shaft, the anode corrodes instead of critical engine components, extending the lifespan of the outboard motor, especially in saltwater and brackish environments. Regular anode replacement ensures continuous protection for the boat motor and other submerged parts.
What is the importance of regularly replacing outboard motor anodes for corrosion protection?
Regularly replacing outboard motor anodes is essential to prevent galvanic corrosion, which can damage critical components like the engine, propeller, and transom bracket. Sacrificial anodes, such as bar anodes, trim tab zinc anodes, and ring anodes, corrode instead of the motor, protecting metal parts from deterioration in saltwater, brackish water, and freshwater. Using the correct alloy anode ensures long-term protection for outboards and boat zinc components, extending the engine’s lifespan and maintaining performance.
What factors determine the choice between aluminum, magnesium and zinc anode for boats?
The choice between zinc, aluminum, and magnesium anodes depends on the water environment where the boat operates. Zinc anodes are ideal for saltwater, aluminum anodes provide effective protection in both saltwater and brackish water, while magnesium anodes are best suited for freshwater. Using the correct anode ensures that essential components like outboard engines, transom brackets, and skegs are protected from galvanic corrosion, extending the lifespan of boat anodes and motor parts.
Additionally, proper maintenance of the cooling system, including timely Honda Impeller Replacement, helps prevent overheating and ensures efficient engine operation.