Volvo Penta Corrosion Protection / Zinc Anode 855105
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Volvo Penta 855105 is a genuine corrosion-protection part used as a sacrificial anode in Volvo Penta marine applications. Current Volvo Penta references identify 855105 simply as corrosion protection, while current market references consistently describe it as a zinc anode for Volvo Penta saildrive applications. Current references also show it used to help protect underwater metal components from galvanic corrosion by sacrificing itself before more critical drive parts are affected.
Key Features
- Genuine Volvo Penta OEM part number 855105.
- Current references describe this part as a zinc anode / corrosion-protection anode.
- Designed as a sacrificial corrosion-protection component for underwater drive hardware.
- Material references currently shown for this exact number identify zinc construction.
Engine Compatibility
Current references most clearly associate Volvo Penta 855105 with saildrive applications rather than general engine-mounted hardware. Current market references specifically connect it with Volvo Penta MB2 / 50S saildrive applications, and other current listings describe it broadly as a saildrive propeller or block anode. Fitment should be confirmed by exact drive model and serial number before ordering.
Serial Number Fitment Notice
Corrosion-protection parts vary by drive family, anode style, water conditions, and production range. Confirm Volvo Penta 855105 by drive serial number and by matching the installed anode shape and mounting style before ordering. Volvo Penta's current parts catalog continues to list 855105 as an active genuine corrosion-protection part.
When This Part Needs Replacement
Replace this anode when it shows clear material loss, uneven erosion, looseness, cracking, or reduced contact surface. Sacrificial anodes are intended to wear during service, so regular inspection and timely replacement are part of normal corrosion-protection maintenance, especially in saltwater and brackish-water use.
Installation Notes
Install the replacement on a clean contact surface so the anode can maintain proper electrical contact with the protected component. Match the new part to the same location and style as the original, and inspect surrounding hardware for additional corrosion during service. Water type also matters with corrosion protection systems, and current Volvo Penta guidance notes that corrosion-control strategy differs across salt, brackish, and fresh water environments.
Alternate/Superseded Part Numbers
Current reviewed references consistently show 855105 as the active Volvo Penta number. Some current listings also show the format 855105-3 in the same application family. Current confirmed part number is 855105.
Parts Desk Insight
For corrosion-protection parts, the most useful checkpoint is usually the drive model and anode shape, not the engine model alone. Current references point strongly toward saildrive use for 855105, so matching the installed anode and confirming by serial number is the cleanest way to avoid ordering the wrong corrosion-protection part.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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