Fleetguard FS19765 Fuel/Water Separator Filter – Pack of 6
Fleetguard FS19765 Fuel/Water Separator Filter – Pack of 6
Get long-lasting protection and save more with this 6-pack of Fleetguard FS19765 Fuel/Water Separator Filters, engineered by Cummins Filtration for top-tier water separation and fuel cleanliness. Perfect for fleets, shops, and diesel owners looking for performance, reliability, and value.
Key Features:
- Includes 6x Genuine Fleetguard FS19765 filters
- OEM-quality filters with StrataPore™ multi-layer media
- High-efficiency filtration with excellent water removal
- Designed for primary fuel filtration in diesel systems
- Ideal for high-mileage service intervals and heavy-duty use
- Trusted in both on-road and off-road applications
Vehicle & Engine Compatibility:
Suitable for vehicles and equipment powered by Cummins diesel engines, including:
- Cummins ISX, ISM, ISL, ISC, QSC, QSL, QSB
- Common in Freightliner, Kenworth, Peterbilt, Volvo, International trucks
- Also used in agriculture and construction equipment: Case IH, New Holland, John Deere
🔍 Please verify compatibility with your engine model or service manual before purchase.
Cross Reference Part Numbers:
- Cummins: 3968188
- Baldwin: BF9886-D
- Donaldson: P550933
- WIX: 33674
- Napa: 3674
- Fram: CS9461
- Luber-Finer: LFF6016
What’s Included:
- 6x Fleetguard FS19765 Fuel/Water Separator Filters
- All items sealed in OEM packaging
Shipping & Handling:
- Fast shipping within 1–2 business days
- Tracking provided on all orders
- Bulk orders welcome for fleets and resellers
Buy in bulk and save with this 6-pack of Fleetguard FS19765 filters — trusted filtration for Cummins-powered machines.
OEM Quality. Fleet-Proven Reliability. Delivered Fast.
❓ FAQ
Q: Which specific trucks, heavy equipment, and Cummins engine platforms is this filter pack compatible with?
A: The Fleetguard FS19765 is an exceptionally common heavy-duty, spin-on fuel/water separator. It is designed primarily for mid-range and heavy-duty Cummins engines, including the Cummins ISX, ISM, ISL, ISC, QSC, QSL, and QSB families. You will find this filter setup widely used in commercial semi-trucks (Freightliner, Kenworth, Peterbilt, Volvo, International) as well as heavy agricultural and construction equipment from Case IH, New Holland, and John Deere.
Q: What makes the StrataPore™ multi-layer media unique compared to standard paper filters?
A: Unlike standard cellulose paper filters that degrade over time when exposed to moisture, proprietary StrataPore™ technology utilizes a unique multi-layer synthetic media. This design layers progressively finer synthetic fibers together, which drastically increases the filter's dirt-holding capacity and ensures high multi-pass efficiency. Most importantly, it provides excellent water-coalescing performance—meaning it forces tiny, suspended water droplets in diesel fuel to bind together into larger drops so they easily sink to the bottom of the filter instead of passing into your high-pressure fuel system.
Q: What are the exact step-by-step instructions for changing this spin-on filter and priming the fuel system?
A: Replacing a heavy-duty spin-on fuel filter requires proper seal preparation and a precise priming loop to prevent starvation of the high-pressure fuel lines:
Locate the filter assembly on the side of the engine block or adjacent chassis rail. Turn the plastic twist drain valve at the bottom of the filter counterclockwise to drain the trapped water and diesel fuel out into your catch container. Once empty, snap the wiring harness off the Water-In-Fuel (WIF) sensor if your equipment uses one.
Fit a filter strap wrench around the body of the canister and turn it counterclockwise to break it loose. Spin the old filter off the threaded mounting stud, keeping it upright to prevent spilling any residual sludge or fuel.
Check the threaded mounting stud on the engine to make sure the old rubber gasket didn't stick to it. Wipe the flat metal sealing surface clean with a lint-free rag. If your truck utilizes a reusable screw-in WIF sensor at the bottom, spin it out of the old filter, clean it, install a fresh rubber O-ring, and thread it firmly into the bottom of the new FS19765 filter.
Take your new Fleetguard filter and fill it up with clean, fresh diesel fuel through the outer perimeter holes (not the center hole) before installation—this minimizes the amount of air introduced into the fuel lines. Lightly lubricate the upper rubber sealing gasket with a film of clean engine oil or fuel. Spin the new filter onto the mounting stud clockwise until the gasket makes flush contact with the base, then hand-tighten it an additional 1/2 to 3/4 turn. Reconnect the WIF sensor wiring harness.
If your truck features a mechanical hand primer pump on the filter base, pump it until it becomes firm. For vehicles with an electric lift pump, turn the ignition key to the "RUN/ON" position (without cranking the motor) and leave it for 30 seconds. Cycle the key off and repeat this process 3 to 5 times to force any remaining air pockets back to the return tank. Fire up the engine, let it idle smoothly, and visually inspect the filter base for any sign of a leak.