Description

Volvo Penta Sacrificial Zinc Anode – Part No. 3861634

Product Description
Protect your sterndrive from galvanic corrosion with the genuine Volvo Penta 3861634 ring anode. Designed for select XDP-series drives, this sacrificial anode mounts behind the propeller and helps protect critical underwater metal components from electrolysis and corrosion in harsh marine environments.

This anode is a routine maintenance item that helps extend the service life of your sterndrive by corroding first, before more expensive components are damaged. It is a smart replacement choice for boat owners performing preventative maintenance or replacing a worn factory anode.

Built for dependable marine corrosion protection, the Volvo Penta 3861634 is commonly used on select XDP-family drive applications and is an essential part of proper sterndrive upkeep.

Key Features

• Genuine Volvo Penta OEM part
• Part number: 3861634
• Ring-style sacrificial anode
• Designed for select XDP-series sterndrives
• Mounts behind the propeller
• Helps reduce galvanic corrosion and electrolysis damage
• Important maintenance replacement item for marine use
• Helps protect valuable sterndrive components from premature wear

Bullet Points

• OEM Volvo Penta ring anode for select XDP drives
• Helps protect sterndrive components from corrosion
• Mounts behind the propeller for targeted protection
• Ideal for routine maintenance and replacement
• Designed for marine environments and long-term drive protection

Specifications

• Brand: Volvo Penta
• Manufacturer Part Number: 3861634
• Product Type: Ring Anode
• Application: Sterndrive corrosion protection
• Mounting Location: Behind propeller
• Drive Family: Select XDP-series drives

Compatibility / Fitment
Fits select Volvo Penta XDP-family sterndrives, including applications commonly associated with:

• XDP
• XDP-B
• X-B
• XHP-B
• XXP-series variants

Fitment may vary by exact drive model, ratio, revision, and serial number. Please verify compatibility with your drive model or OEM parts lookup before ordering.

Maintenance Tips
Inspect your sterndrive anodes regularly and replace them when they are significantly worn. Worn anodes provide reduced corrosion protection and can leave other underwater metal components vulnerable to damage. More frequent inspections are recommended for boats operated in saltwater or brackish water, or kept in the water for extended periods.

Why Replace Your Ring Anode?
A sacrificial anode is designed to corrode first, helping to protect your sterndrive housing and other metal parts from galvanic corrosion. Replacing depleted anodes on time is one of the simplest and most important preventative maintenance steps for sterndrive longevity.

Sold individually.