Description
Sierra’s 18-7866 Fuel Filter is designed for high horsepower Yamaha 2-stroke and 4-stroke engines, providing reliable filtration to support consistent fuel delivery and engine performance in demanding marine environments. It features a 10-micron rating with over 90% efficiency at capturing fine particles, helping protect fuel system components from contaminants commonly found in ethanol-blended fuels. Engineered to flow at 90 GPH, this high-capacity 6″ (152.4mm) filter supports the fuel demands of powerful engines without restriction. With an 11/16-16 thread pitch, it is built for secure installation and meets or exceeds original equipment specifications for durability and performance.
Features
- 10-micron filtration removes fine particles and supports clean fuel delivery
- Flows up to 90 GPH to meet high horsepower engine fuel demands
- High-capacity 6″ (152.4mm) design for extended service life
- 11/16-16 thread pitch for secure and reliable installation
- Designed for high HP Yamaha 2-stroke and 4-stroke engine applications
- Filter Size: High Capacity – 6″ or 152.4mm
- Rating: 10 Micron
- Ethanol blended fuel absorbs more water and loosens more particulants than regular fuels
- Proper filtration is required for every horsepower engine
- Sierra’s 10 micron filters are over 90% efficient at removing particles as small as 10 micron
- All filters flow at 90 GPH to feed even the hungriest motor






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