Sierra 18-7833 Marine Fuel Pump Diaphragm for Yamaha Outboard Motors

The Sierra International 18-7833 is a replacement fuel pump diaphragm engineered for Yamaha outboard motors. Designed to meet or exceed original equipment specifications, this diaphragm is a critical component in your outboard's mechanical fuel lift pump system, ensuring reliable fuel delivery from the tank to the engine.

The fuel pump diaphragm works by flexing over the fuel bowl to create a vacuum, drawing fuel through one-way check valves and pushing it toward the engine. A worn or cracked diaphragm results in reduced fuel pressure, causing hard starting, rough running, or engine stall. Replacing it with a quality Sierra unit restores proper fuel system performance.

Key Features:

• Manufactured to meet or exceed OEM specifications
• Direct replacement for Yamaha OEM part numbers 6G1-24411-00-00 and 6G1-24471-00-00
• Also interchangeable with Mercury OEM part number 11497M
• Sold as a single diaphragm; pairs with Sierra 18-7388 diaphragm (both included in Sierra 18-7367 Fuel Pump Kit)
• Built to withstand the harsh marine environment
• Sierra is a trusted OEM supplier to major engine manufacturers and boat builders

OEM Cross-Reference Numbers:

• Yamaha: 6G1-24411-00-00, 6G1-24471-00-00
• Mercury: 11497M
• Sierra Fuel Pump Kit: 18-7367 (contains 18-7833 + 18-7388)

Sierra International is a leading supplier of marine engine parts, delivering quality components that meet the demands of today's outboard engines. Replace your worn diaphragm with confidence using Sierra part 18-7833.