Tecnoseal Tecnoseal Zinc Split Collar Anode f/SD20, SD25, SD30, SD31, SD40, SD50 SD60 Yanmar Saildrives [01305/1] Zinc Split Collar Anode for SD20, SD25, SD30, SD31, SD40, SD50 & SD60 Yanmar SaildrivesTecnoseal Zinc Yanmar Saildrive Split Collar Anode without fittings. In zinc for salt water. Original part... MSRP: $43.65 Was: Now: $34.99 Add to Cart Compare