Fleetguard FF5079 3/8" Inline Fuel Strainer | High-Flow Pre-Pump Fuel Strainer Description A lift pump can only be as reliable as the fuel entering it. The Fleetguard FF5079 3/8" Inline Fuel Strainer is designed to provide the first line of defense against large contaminants before they reach your lift pump. Featuring a 24-micron stainless steel wire mesh element with a 13-gram contaminant holding capacity, the FF5079 captures rust flakes, tank scale, plastic debris, algae, and other contaminants without creating unnecessary restriction on the suction side of the fuel system. Unlike a traditional inline fuel filter, the FF5079 is engineered specifically as a high-flow inlet strainer. Its wire mesh construction allows excellent fuel flow while protecting your lift pump from debris commonly found in older fuel tanks and custom fuel systems. Whether you're installing a custom draw straw, fuel sump, replacement lift pump, or rebuilding a factory fuel system, the Fleetguard FF5079 provides dependable inlet protection without sacrificing fuel delivery. Features Genuine Fleetguard FF5079 inline fuel strainer High-flow design for pre-pump installation 24-micron stainless steel wire mesh element 13-gram contaminant holding capacity 3/8-inch hose connections Low restriction for maximum fuel flow Durable stainless steel mesh construction Helps protect lift pumps from large debris Ideal for factory and custom diesel fuel systems Why Use a Fuel Strainer Before the Pump? Many diesel owners assume installing a fine fuel filter before the lift pump offers the best protection. In reality, placing a restrictive filter on the suction side can reduce fuel flow and force the lift pump to work harder than necessary. Lift pumps are designed to push fuel more efficiently than they pull it. Excessive inlet restriction can contribute to: Reduced fuel supply Increased pump workload Cavitation Premature pump wear Reduced fuel volume under heavy load That's why properly designed fuel systems typically use: A coarse strainer before the lift pump A high-efficiency fuel filter after the pump This combination provides excellent lift pump protection while maintaining unrestricted fuel flow. Glacier Tech Tip One of the most overlooked sources of fuel contamination is the fuel tank itself. Older tanks, replacement tanks, or trucks that have sat for extended periods often contain: Rust flakes Tank scale Dirt Plastic shavings Sealant residue Biological growth from contaminated diesel fuel These larger contaminants don't belong inside your lift pump. The FF5079 stops them before they can score pump internals or clog fuel passages, making it an excellent choice for stock replacement systems as well as custom fuel system builds. Why Choose the Fleetguard FF5079? Fleetguard engineered the FF5079 specifically as an inlet strainer, not a traditional fuel filter. That distinction matters. Benefits include: High fuel flow with minimal restriction Excellent protection against large debris Stainless steel wire mesh media High contaminant holding capacity Heavy-duty construction Long service life This is the style of pre-pump filtration Glacier Diesel Power recommends because it protects the lift pump without creating unnecessary suction-side restriction. Common Uses The Fleetguard FF5079 is ideal for: Factory 3/8-inch fuel systems 12-Valve Cummins fuel systems VP44 Cummins fuel systems Custom diesel fuel systems Draw straw installations Fuel sump installations Lift pump inlet protection Fuel cell installations Street, towing, and off-road applications Important Notes Genuine Fleetguard FF5079 inline fuel strainer. Designed for pre-pump (suction-side) installation. Features a 24-micron stainless steel wire mesh element. Not intended to replace a high-efficiency post-pump fuel filter. Always install according to the fuel flow direction. Inspect the strainer during routine fuel system maintenance. Common Failure Point One of the fastest ways to shorten the life of a lift pump is allowing debris from the fuel tank to enter the pump. Rust flakes, dirt, and tank contamination can damage pump gears, clog internal passages, and reduce fuel flow before the primary fuel filter ever has a chance to trap them. Installing a coarse inlet strainer like the FF5079 helps stop these larger contaminants while allowing the lift pump to receive the unrestricted fuel supply it was designed for. Complete Your Fuel System For complete fuel system protection, pair the Fleetguard FF5079 with: Fleetguard FF5814 3-Micron NanoNet® Fuel Filter Glacier Diesel Power Universal Fuel Filter Systems Glacier Diesel Power MK-2 Fuel Filter Systems Glacier Diesel Power Fuel Pressure Test Kits Glacier Diesel Power Fuel Pressure Test Fittings Glacier Diesel Power Fuel System Diagnostic Tools Glacier Diesel Power Fuel System Components Using a high-flow pre-pump strainer together with a high-efficiency post-pump fuel filter provides the ideal balance of fuel flow, lift pump protection, and long-term reliability—helping keep contaminants out of your fuel system while ensuring your diesel engine receives the clean fuel it deserves.
