Sierra 18-3475 Yamaha Water Pump Repair KitThe Sierra 18-3475 Water Pump Repair Kit is designed for T8(2001-2010) & T9.9 (2007-2018) Yamaha.Contains: (1) 18-3444 Insert Cup; (1) 18-3040 Impeller; (1) 18-3142 Impeller Plate; (1) 18-3294 Impeller Key; (1) 18-3176 Water Seal Damper; (1) 18-71331 O-Ring (55X); (4) 18-0256 Bolt; Interchangeable with: Yamaha Outboard; 69G-W0078-0000;