Volvo Penta Magnesium cavitation plate anode for a DP-R outdrive.
If your anode is worn away by 33% or more, it is advisable to change it, as more of its surface area has been worn away and the remaining anode will wear away much quicker. The magnesium version is only suitable for fresh water.
Volvo Penta Part No: 3589877
For: DP-R
