876638 Zinc Electrode | 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 cadmium-free zinc anode listed for spray plate, DPX drives, supplied for salt and brackish water. For some older drives Volvo Penta still provides cadmium-free zinc anodes, marked Zn, for salt and brackish water instead of aluminium anodes.

🚤 Compatibility

Typically suits:

• Volvo Penta TSK DPX-C
• Volvo Penta DPX-A
• Volvo Penta DPX-R
• Volvo Penta DPX-S1
• Volvo Penta TAMD42B
• Volvo Penta KAD42B
• Volvo Penta KAMD42B

• Engine Family: TSK, DPX, TAMD, KAD, KAMD

⚙️ Key Features

• Spray plate anode for the DPX duo prop drives
• Cadmium-free zinc, for salt and brackish water on this older drive
• 0.204 kg
• No magnesium fresh water version is listed for this position
• 7 applications across TSK, DPX, TAMD, KAD and KAMD series
• Cadmium-free zinc anode for Spray plate, DPX drives.
• Listed for salt and brackish 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: cadmium-free zinc
• Fits: Spray plate, DPX drives
• Cadmium-free zinc sacrificial anode for the spray plate position
• Fits the Aquamatic duo prop DPX drives
• Position: spray plate
• Water type: Salt and brackish water
• Fits: the Aquamatic duo prop DPX drives

🔌 Function

Corrodes in place of the drive and spray plate, taking the electrolytic attack that would otherwise fall on the aluminium.

⚠️ Common Signs of Failure

• Anode wasted down to a stub before the next lift-out
• White or grey corrosion product around the anode seat
• An anode that looks untouched after a season, pointing to a broken bonding path
• Pitting or blistered paint on the spray plate or drive leg

🛠️ Service Notes

• The DPX transom shield takes 23813192 in aluminium or 24042665 in magnesium, and the intermediate housing takes 24007660 or 3863480, so order by position
• Volvo Penta now recommends aluminium anodes in salt and brackish water and is phasing most zinc anodes out, but zinc is what is listed for this position
• Clean the seat to bright metal, check bonding continuity and never paint an anode
• 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.
• 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
• No fresh water alternative is listed for this position - the fresh water column is blank

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Cathodic Anodes Australasia: CDZ9-110

📦 Condition

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