Sierra 18-9861 MerCruiser Hinge Pin Tool Replaces 78310 This Sierra hinge pin tool is designed to remove and install hinge pins from all MerCruiser drive units. Replaces Mercury 91-78310 Mallory 9-79805 GLM 90200 Pro Marine 18-9861 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Product MPN 18-9861 Google Product Type Special Tools Product MPN 18-9861 Product UPC 808282109691 Fast Ship In Stock Ships Today