21211781 Rod | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Metal-Hull Transom-Anode Bonding Rod - Part Number: 21211781

Genuine threaded rod used in metal-hull transom-anode mounting kit 21211763. It mechanically secures and electrically bonds the anode components using the specified nuts, washers, O-rings and shim.

⚙️ Key Features

• Component of mounting kit 21211763

• Provides mechanical retention and electrical bonding

• Factory thread and installed length

• Designed for metal-hull corrosion-protection systems

• Supplied as one rod only

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21211781 - Current OEM part number

OEM / Related Numbers:

• 21211781

• 21211763 - Complete mounting-kit reference

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

Associated Service Parts:

• 21211765 - Mounting shim; ordered separately

• 975692 / 975652 - O-rings; ordered separately

• 991657 - Hexagon nut; ordered separately

• 991658 / 991659 - Washers; ordered separately

• 991660 - Toothed washer; ordered separately

• 23172846 / 23172853 - Applicable anode-kit references by installation version

🚤 Compatibility

Confirmed system:

• Volvo Penta transom-anode mounting kit for metal hulls

• Used with the anode kit assigned to the specific IPS or transom-shield installation

• Confirm transom configuration, hull material and installation drawing

• Clean metal-to-metal contact is essential for correct anode operation

🔌 Function

The rod secures and bonds the anode-mounting components so sacrificial corrosion protection can operate correctly.

Common signs of failure:

• Corroded or damaged threads

• Loose anode assembly

• Poor electrical bonding

• Protected components corroding despite anode material remaining

• Water leakage around damaged O-rings

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging