Sierras 18-7367 Fuel Pump Kit is designed for use in Yamaha 3 HP (1988-2002), 6 HP (1986-2000), and 8 HP (1984-2009) outboard engines. The kit contains (1) Sierra 18-7833 Fuel Pump Diaphragm and (1) Sierra 18-7388 Diaphragm. The kit is interchangeable with Yamaha Outboard 6G1-24411-00-00 and 6G1-24471-00-00. Check manufacturer recommendations to ensure a proper fit before purchasing. Each Sierra product meets or exceeds the original equipment part it replaces.