Fleetguard FS20172 Fuel/Water Separator Filters – Pack of 6 | OEM Diesel Replacement
Fleetguard FS20172 Fuel/Water Separator Filters – Pack of 6 | OEM Diesel Replacement
Protect your diesel engine with the Fleetguard FS20172 Fuel/Water Separator Filter Pack of 6. Built with advanced filtration technology, these OEM-quality filters efficiently remove water and contaminants from your fuel system, ensuring maximum engine performance and injector protection.
Features & Benefits
- ✅ Genuine Fleetguard OEM filters for superior diesel engine protection
- ✅ Removes water and harmful particulates from fuel
- ✅ Extends fuel injector and pump life
- ✅ Heavy-duty design for long-lasting reliability
- ✅ Meets or exceeds OEM standards for performance
Vehicle/Equipment Compatibility
Fleetguard FS20172 filters are widely used in heavy-duty diesel applications, including:
- Cummins diesel engines (various models)
- Medium & heavy-duty trucks
- Construction and agricultural equipment
(Confirm filter fitment with your engine/application manual or OEM part number.)
Cross Reference
- Cummins 5406033
- Baldwin BF1399-D
- Donaldson P551849
- Wix 33818
(Cross references are for guidance only. Verify before ordering.)
What’s Included
- 6 × Genuine Fleetguard FS20172 Fuel/Water Separator Filters
Why Buy From Us
- 🔧 100% Genuine Fleetguard Products
- 🚛 Trusted by Diesel Professionals
- 🚀 Fast USA Shipping & Easy Returns
- ✅ Reliable Auto & Heavy-Duty Parts Supplier
❓ FAQ
Q: What is the specific filtration technology in the Fleetguard FS20172, and why is it categorized as a "Stratapore" filter? A: The Fleetguard FS20172 is engineered using Stratapore media, which is a patented, multi-layer synthetic filtration material. Unlike traditional cellulose (paper) media that has randomly oriented fibers, Stratapore consists of layers of synthetic fibers that provide superior dirt-holding capacity and efficiency. This is critical for diesel engines because it allows for high-flow filtration without the flow restriction typically associated with fine-micron paper filters. The "FS" designation indicates that this filter is specifically designed to perform water separation (coalescing) and particulate filtration simultaneously, making it an all-in-one primary protection layer for sensitive fuel systems.
Q: Is this filter designed for the suction side or the pressure side of the fuel system, and does it require a water-drain bowl? A: The FS20172 is typically utilized as a primary fuel/water separator and is often installed on the suction side of the fuel system—between the fuel tank and the primary lift pump. Its design is intended to capture the bulk of moisture and larger contaminants before they hit the pump, preventing internal erosion. Regarding the water-drain bowl: the FS20172 features a threaded bottom port designed to accept a reusable water-separator drain bowl. This allows operators to visually inspect for water accumulation and manually drain it without needing to replace the entire filter element, significantly lowering operating costs over the life of the engine.
Q: What are the exact step-by-step instructions for performing a professional-grade filter change on this heavy-duty application? A: Working on heavy-duty diesel filtration requires extreme attention to seal integrity, as suction-side leaks can lead to air entering the fuel system, causing erratic idling or "hard-start" conditions.
Place a catch pan under the fuel filter. Open the drain valve on the bottom of the plastic water-separator bowl to evacuate any trapped water and fuel. Once empty, use a filter strap wrench to turn the entire filter canister (with the bowl attached) counterclockwise and remove it from the mounting header.
Place the old filter canister in a vise or hold it firmly. Unscrew the plastic water-separator bowl from the bottom of the filter. Carefully remove the old O-ring seal from the bowl, clean the bowl thoroughly with clean diesel fuel, and inspect the plastic for any hairline cracks or thread wear.
Lubricate the new O-ring (included with your filter) with a thin film of clean diesel fuel. Seat it properly in the groove of the bowl. Thread the bowl clockwise onto the bottom of the new Fleetguard FS20172. Tighten firmly by hand until you feel the O-ring compress—do not use a tool to overtighten, as this can warp the plastic bowl or tear the new seal.
Apply a light film of clean diesel fuel to the large top gasket of the new filter. Pre-fill the new filter with clean, filtered diesel fuel through the outer perimeter holes (not the center port) to assist the engine's priming process.
Align the center threads of the filter with the mounting header stud. Spin the filter clockwise by hand until the top gasket makes contact with the base. Once it touches, turn it an additional 3/4 to 1 full turn by hand. Ensure the bottom drain valve is firmly closed.
If your engine platform has a manual priming pump (plunger), pump it until you feel firm resistance. Turn the ignition key to "RUN" for 30 seconds to allow the electric lift pump to pressurize the system. Start the engine and let it idle for 5 minutes. Inspect the header seal and the bowl joint with a flashlight to ensure there is zero weeping or air-leaking.