This part is Zinc. Yanmar uses aluminium. The kit includes 2 x split rings 196450-02500 (196450-02501). Supercedes from part 196440-02660.
Used on Yanmar sail drives SD20, SD25, SD30, SD31, SD40, SD50, SD60
Split ring anodes allow for replacement of the anode without removing the prop. If converting from the full ring anode, you will also need the adapter kit (click here).
This is a non-genuine, aftermarket part. MEZ 9-176