Sierra 118-7797 Fuel Pump Diaphragm Kit for Yamaha Outboards

The Sierra 118-7797 (also known as 18-7797) Fuel Pump Diaphragm Kit is a precision-engineered replacement component designed specifically for Yamaha outboard motors. This comprehensive service kit provides essential diaphragm components needed to restore or maintain proper fuel pump operation in your marine engine.

Kit Contents:

• Sierra 18-7840 Fuel Pump Diaphragm
• Sierra 18-7839 Fuel Pump Diaphragm

Key Features:

• Designed for Yamaha 9.9HP and 15HP outboard motors (1984-1990 models)
• Meets or exceeds OEM specifications for reliable performance
• Used with Sierra 18-7334 Yamaha Fuel Pump assembly
• Quality construction built to withstand harsh marine environments
• Direct replacement for original Yamaha fuel pump diaphragm components

Sierra Marine is a trusted name in aftermarket marine parts, known for manufacturing high-quality replacement components that deliver dependable performance. This diaphragm kit ensures your outboard's fuel delivery system operates efficiently, helping prevent fuel starvation issues and maintaining optimal engine performance on the water.