Sierra 18-9847 Mercruiser Bellows Expander Tool Installs exhaust bellows on Mercruiser MC-I, R-MR, Alpha One, Bravo One and Two and Blackhawk drive units. Replaces Mercury 91-45497A1 Mallory 9-79811 GLM 90360 Pro Marine 18-9847 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Special Tools Wiser Yes Product MPN 18-9847 Product UPC 808282109554 Fast Ship In Stock Ships Today