Sierra 18-7829 Fuel Water Separator Filter, Large Capacity, for 1/4 Inch Fuel Line

The Sierra 18-7829 is a large capacity fuel water separator filter engineered for boats running 1/4 inch fuel line. It removes over 99.8% of emulsified water from gasoline before it reaches the engine, protecting fuel system components from water contamination that can cause stalling, corrosion, and injector damage. The filter media is rated at 10 microns and is over 90% efficient at capturing particles as small as 10 microns, catching rust, dirt, and debris that would otherwise pass through to sensitive fuel injection components. Rated to flow at 90 gallons per hour, the 18-7829 is built to keep up with demanding engines without restricting fuel delivery.

This filter is specifically recommended for use ahead of inboard and outboard fuel injection systems, where even small amounts of water or particulate contamination can cause costly damage. The large capacity design of the 18-7829 gives it more dirt-holding capacity and longer service intervals than smaller separators, making it a good choice for boats that see heavy use or run in less-than-clean fuel conditions. It is sized for 1/4 inch fuel line, so confirming your boat's fuel line diameter before ordering will ensure proper fit.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7829
• Product Type: Fuel Water Separator Filter
• Fuel Line Size: 1/4 inch
• Capacity: Large Capacity
• Filtration Rating: 10 micron
• Particle Removal Efficiency: Over 90% efficient at removing particles as small as 10 micron
• Water Removal Efficiency: Over 99.8% of emulsified water removed from gasoline
• Flow Rate: 90 gallons per hour
• Weight: 0.07 pounds
• UPC: 808282368906

Frequently Asked Questions

What fuel line size is the Sierra 18-7829 designed for? The Sierra 18-7829 is sized for 1/4 inch fuel line and is the large capacity version of Sierra's fuel water separator lineup for that line size.

How much water does the 18-7829 remove from fuel? It removes over 99.8% of emulsified water from gasoline, which helps prevent water contamination from reaching the engine's fuel injection system.

What micron rating is the filter media in the 18-7829? This filter uses 10 micron media and is over 90% efficient at removing particles as small as 10 microns from the fuel.

What is the maximum flow rate of the Sierra 18-7829? 90 gallons per hour is the rated flow of the 18-7829, which is designed to keep up with higher-demand engines without restricting fuel delivery.

Is the 18-7829 suitable for fuel-injected engines? Yes, Sierra's 10 micron fuel water separator filters, including the 18-7829, are recommended to prevent damage to sensitive inboard and outboard fuel injection systems.

How much does the 18-7829 weigh? The Sierra 18-7829 weighs 0.07 pounds.

What does 'Large Capacity' mean for the 18-7829? Large Capacity refers to the filter's larger dirt-holding volume compared to standard-size separators in the same 1/4 inch fuel line family, giving it more media surface for extended service life.

Does the 18-7829 come in other fuel line sizes? The 18-7829 is the 1/4 inch large capacity version; Sierra also offers this same filter design in 5/16 inch and 3/8 inch fuel line sizes as separate part numbers for boats with different fuel line diameters.

Why should I install a fuel water separator like the 18-7829? A fuel water separator filter such as the 18-7829 removes emulsified water and fine particulate from gasoline before it reaches the engine, reducing the risk of stalling, corrosion, and fuel injector damage.

What is the UPC for the Sierra 18-7829? The Sierra 18-7829 fuel water separator filter has UPC 808282368906.