876603 Magnesium Anode Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta anodes are made to sacrifice themselves in order to protect the drive and propeller from galvanic corrosion. Volvo Penta now recommends aluminium anodes in salt and brackish water instead of the zinc previously recommended for salt water, and is gradually phasing out and replacing most of its zinc anodes with aluminium ones. Aluminium anodes give 30% higher corrosion protection capacity, up to 20-40% longer life span in salt water compared with similarly sized zinc anodes, a lower environmental impact, and are the better choice for brackish water too. Magnesium is the material listed for fresh water. This is the magnesium anode listed for lower gear, S-drive 110S, supplied for fresh water.

🚤 Compatibility

• Engine Family: MD, AQ, BB, B, MB, AQD

Full model list at the end of this description.

⚙️ Key Features

• For the S-Drive 110S lower gear
• Magnesium, for fresh water
• 0.302 kg
• Listed for 38 applications across the MD, AQ, BB, B, MB and AQD series
• Not included with the lower gear
• Magnesium anode for Lower gear, S-drive 110S.
• Listed for fresh water.
• Aluminium anodes give 30% higher corrosion protection capacity than a similarly sized zinc anode.
• Up to 20-40% longer life span in salt water than a similarly sized zinc anode.
• Lower environmental impact, and the better choice for brackish water as well as salt.
• Aluminium anodes can be used for all types of hull material.
• Volvo Penta anodes feature, where needed, an internal reinforcement made from an alloy that does not erode, which also ensures a reliable electrical connection between the anode and the drive.
• Material: magnesium
• Fits: Lower gear, S-drive 110S
• Magnesium sacrificial anode for the lower gear position
• Fits the 110S saildrive
• Position: lower gear
• Water type: Fresh water
• Fits: the 110S saildrive

🔌 Function

Corrodes in place of the drive housing, giving the water something less noble than the drive's aluminium to attack.

⚠️ Common Signs of Failure

• Anode wasted down to a fraction of its original size
• White powdery deposits building up around the anode
• The anode still looking new after a season, which points to a bad bonding connection
• Pitting or white corrosion products appearing on the drive housing itself
• Paint blistering around the drive leg

🛠️ Service Notes

• Magnesium is the fresh water material and will waste away very quickly in salt water, so check what the boat actually lies in before ordering - 875812 is the zinc anode listed for the same 110S lower gear in salt and brackish water
• Anode 876604 covers the 120S and MS25S lower gears in the same magnesium specification, and the 130S and 150S take a two-piece anode, so confirm your drive model
• Clean the mounting face back to bright metal and never paint an anode, or it cannot do its job; anode life also swings with water flow, salinity, temperature, pollution and stray current
• Salt and brackish water: aluminium (or, on some older drives, cadmium-free zinc marked Zn). Fresh water: magnesium.
• When installing a new anode it is important to have good contact between the anode and the surface to which it is connected.
• If an anode has been exposed to air for a long time it can be covered by a passivating surface film that prevents it working properly; consider reactivating it with emery paper before launching. Do not use sandpaper, a wire brush or other steel tools when cleaning, as these may damage the galvanic protection.
• Read the operator's manual for detailed information on maintaining and replacing anodes.
• Volvo Penta now recommends aluminium anodes in salt and brackish water, in place of the zinc previously recommended for salt water
• Aluminium anodes are listed as giving 30% higher corrosion protection capacity and up to 20-40% longer life in salt water than similarly sized zinc anodes, with lower environmental impact, and as the better choice for brackish water too
• Magnesium is the material listed for fresh water
• For some older drives, cadmium-free zinc anodes, marked Zn, are supplied for salt and brackish water instead of aluminium
• Volvo Penta anodes carry, where needed, an internal reinforcement in an alloy that does not erode, which also keeps a reliable electrical connection between the anode and the drive
• An anode that has been exposed to air for a long time can be covered by a passivating surface film that stops it working properly; consider reactivating it with emery paper before launching the boat
• Refer to the Operator's Manual for maintenance and replacement detail for your own product

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta MD5A, MD5B, MD5C
• Volvo Penta AQ115A, AQ115B
• Volvo Penta AQD21A, AQD21B
• Volvo Penta MD11C, MD11D
• Volvo Penta MD17C, MD17D
• Volvo Penta MD21B, MD21A
• Volvo Penta MD6A, MD6B
• Volvo Penta MD7B, MD7A
• Volvo Penta AQ165A
• Volvo Penta B20
• Volvo Penta BB165A
• Volvo Penta MD67C
• Volvo Penta 110S