Volvo Penta Zinc Anode 823661

Volvo Penta 823661 is a genuine zinc anode used to help protect selected Volvo Penta engine cooling-system components from galvanic corrosion. Current parts listings identify it as a zinc anode for diesel-engine heat exchanger or manifold applications, and Volvo Penta dealers continue to list 823661 as an active genuine service part.

Key Features

• Genuine Volvo Penta part number 823661.
• Sacrificial zinc anode for corrosion protection in marine cooling systems.
• Common dimensional references: about 26 mm diameter, 44 mm body length, and 3/8″ thread.
• Current dealer weight references are about 0.158 to 0.16 kg.

Engine Compatibility
Current supportable references tie Volvo Penta 823661 to selected Volvo Penta diesel families including D12, TAMD60, MD70, TAMD70, and TAMD122. Additional current replacement references also associate this anode with D60, D70, D100, and D120 heat exchanger applications. Because published fitment varies by source, the safest fitment method is to confirm by exact engine serial number and parts schematic before ordering.

Serial Number Fitment Notice
Fitment can vary by engine family, heat exchanger arrangement, and production break. Confirm Volvo Penta 823661 against your exact engine serial number before ordering to ensure the correct zinc anode for your application.

When This Part Needs Replacement
Replace this zinc anode when it has been significantly consumed, shows heavy erosion, or is removed during cooling-system service and no longer offers dependable corrosion protection. On saltwater and brackish-water engines, regular inspection is especially important because anode consumption is part of normal protection duty.

Installation Notes
Install only after confirming the correct application by serial number. Current replacement references note that this anode is used in heat exchanger service and is commonly paired with a separate brass socket or plug arrangement depending on the installation. Check the threads, sealing surface, and surrounding cooler or manifold housing before fitting the new anode.

Alternate/Superseded Part Numbers
Current sources show Volvo Penta 823661 as the active ordering reference. Some current dealer listings note that 823661 was superseded from 823660, while other replacement-market references cross-list related brass socket 823662 as the companion housing component rather than a replacement anode number.

Parts Desk Insight
Large pencil-style zincs like 823661 are simple but important service items on older Volvo Penta diesel cooling systems. Replacing them on schedule helps protect more expensive heat exchanger and manifold components, especially on engines that spend most of their time in saltwater. Matching the anode by serial number is the cleanest way to avoid ordering the wrong size or thread style.

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