Fleetguard FF5825NN Fuel Filter – Pack of 6
Fleetguard FF5825NN Fuel Filter – Pack of 6
Fleetguard FF5825NN Fuel Filter – 6-Pack
NanoNet® Media Fuel Filters for Cummins ISX15/X15 Engines
Get maximum engine protection and bulk value with this 6-pack of Fleetguard FF5825NN Fuel Filters, engineered with NanoNet® media for industry-leading filtration. Trusted by fleets and professionals for modern high-pressure diesel fuel systems.
Key Features:
- 6x Fleetguard FF5825NN filters
- NanoNet® advanced synthetic media
- Removes over 98.7% of particles ≥4 microns
- High efficiency and long service life in severe conditions
- Designed for secondary/high-pressure fuel filtration
- Genuine Cummins Filtration product — OEM approved
Vehicle & Engine Compatibility:
Designed for Cummins ISX15 / X15 / QSX15 engines, found in heavy-duty Class 8 trucks including:
Freightliner, Kenworth, Peterbilt, Volvo, International, Western Star
Always confirm compatibility with your engine serial number or service manual before purchase.
Cross Reference:
Cummins 5589259 | Baldwin BF46002 | Donaldson P550933 | WIX 33674 | Luber-Finer LFF5825 | Napa 3674
What's Included: 6x Fleetguard FF5825NN Fuel Filters (sealed OEM packaging)
Shipping: Ships in 1–2 business days, tracked delivery, volume discounts available for fleet buyers and resellers.
Nano Net Efficiency. Bulk Value. Built for Cummins.
❓ Quick FAQ
Which trucks/engines does this fit?
Cummins ISX15 and X15 15-liter engines used in Class 8 semis from Freightliner, Kenworth, Peterbilt, International, Volvo, and Western Star.
What makes NanoNet® media better than standard filters?
Its multi-layer synthetic design traps over 98.7% of particles as small as 4 microns — critical for HPCR fuel systems operating up to 30,000 PSI, where even microscopic debris can damage injectors.
How do I replace this filter?
- Drain the old filter canister into a catch pan; disconnect the WIF sensor if equipped.
- Remove the old filter with a strap wrench.
- Clean the mounting surface and transfer/replace the WIF sensor with a new O-ring if reused.
- Pre-fill the new filter with diesel through the outer holes, lubricate the seal, then hand-tighten an additional 1/2–3/4 turn after contact.
- Reconnect the WIF sensor wiring.
- Cycle the ignition to RUN (without cranking) 3–5 times to prime the system, then start the engine and check for leaks.