Sierra 18-6240 Mercruiser Bravo Magnesium Anode Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser Bravo Drives. For use in fresh water only. Interchangeable with Mercruiser Stern Drive 817373A1 821630A1 821630C2 97-821630Q1 97-821630T1 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Engine Parts Wiser Yes Product MPN 18-6240 Product UPC 808282103590 Fast Ship In Stock Ships Today