876137 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, 200-290, SP drives, supplied for fresh water.

🚤 Compatibility

• Engine Family: AD, D, AQ, TMD, B, DP, SP, MS, TAMD, MD

Full model list at the end of this description.

⚙️ Key Features

• Lower gear anode for the single prop 200-290 and SP drives
• Magnesium, for fresh water
• 0.274 kg
• 82 applications across six series
• Salt and brackish water equivalent is zinc anode 875815
• Magnesium anode for Lower gear, 200-290, SP drives.
• 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, 200-290, SP drives
• Magnesium sacrificial anode for the lower gear position
• Fits the Aquamatic single prop 200-290 and SP drives
• Position: lower gear
• Water type: Fresh water
• Fits: the Aquamatic single prop 200-290 and SP drives

🔌 Function

Wastes away in place of the drive's aluminium housings, giving stray galvanic current a sacrificial target.

⚠️ Common Signs of Failure

• Anode consumed to less than half its original size
• Anode untouched after a season, meaning no electrical contact with the drive
• Chalky white bloom or pitting on the gear housing near the anode
• Mounting screws wasted or seized

🛠️ Service Notes

• Magnesium is right for fresh water only - in salt water it wastes far too quickly, so fit 875815 instead
• Clean the mounting face to bare metal and leave the anode unpainted
• If the anode has been stored dry for a long time, break the passivating film with emery paper before launching, never with a wire brush or other steel tool
• 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.
• Water flow, salinity, temperature, pollution levels and stray current considerably affect anode life.
• 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

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Orbitrade: ORB-19815-2

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 740B, 500A, 501A, 501B, 570A, 572A, 430A, 430B, 431A, 431B, 432A, 434A, 230A, 230B, 231LB, 250A, 250B, 251A, 271LB, 275A, 285A, 570, 500B, 500, 571A, 430
• Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
• Volvo Penta SP-C, SP-E, SP-A2, SP-C1, SP-A, SP-A1
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
• Volvo Penta B230, B230E, B230F, B230FB, B230FX
• Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
• Volvo Penta AQ271A, AQ271C, AQ271B, AQ271D
• Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta AQ151A, AQ151B, AQ151C
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta AD41B, AD41BJ
• Volvo Penta AQ171A, AQ171C
• Volvo Penta AQ205LB, AQ205A
• Volvo Penta AQ231A, AQ231B
• Volvo Penta AQ311A, AQ311B
• Volvo Penta AQ211A
• Volvo Penta D41B
• Volvo Penta MD31A
• Volvo Penta MS4B
• Volvo Penta TAMD41B
• Volvo Penta TMD41B