FF5369W FUEL WATER SEPARATOR FILTER FF5369 REPLACEMENT FOR DIESEL ENGINE TRUCKS REPLACE 380087 85105574 PF7548 23521528

iFJF part No.: FJ-5369-LX. FF5369W Fuel Water Separator Filter Heavy-Duty Diesel Protection The FF5369W fuel water separator filter is engineered for Freightliner, Kenworth, Peterbilt, International, and Sterling heavy-duty diesel trucks . Combines 10-micron particulate filtration with advanced water separation in one spin-on element. Replaces 380087, 85105574, PF7548, 23521528, and P550414 . Includes O-rings for complete installation. Key Features Dual-Action Filtration: Removes both solid contaminants (10 micron) and emulsified water in a single element simplifies maintenance and reduces filter inventory. Heavy-Duty Truck Compatible: Designed for Freightliner Cascadia, Kenworth T680/T880, Peterbilt 579/389, and International LT/ProStar with Detroit DD and Cummins ISX engines. Includes O-Rings: Complete installation kit with pre-lubricated O-rings no hunting for gaskets or seals during filter changes. Hydrophobic Media: Advanced barrier layer coalesces micro-droplets into larger water particles that settle to the filter bowl for easy draining. IATF 16949 Certified: Same quality systems as major OEM filter suppliers. Technical Specifications Specification Value Part Number FF5369W / P550414 Cross Reference 380087, 85105574, PF7548, 23521528 Filtration 10 Micron Nominal Water Separation 95% Efficiency Includes Filter Element + O-Ring Set Vehicle & Engine Compatibility Make Models Engines Freightliner Cascadia, Columbia, Century, M2 Detroit DD13/DD15/DD16 Kenworth T680, T880, W900 Cummins ISX15, PACCAR MX-13 Peterbilt 579, 389, 567 Cummins ISX15, PACCAR MX-13 International LT Series, ProStar Cummins ISX15, A26 Why Choose This Product? Water in diesel fuel is a silent engine killer it causes injector tip erosion, promotes microbial growth (diesel bug), and freezes in cold weather. The FF5369W's dual-action filtration traps both particles and water, giving your injection system the protection it needs. Frequently Asked Questions Q: How often should this water separator filter be replaced? A: Replace every 15,000-25,000 miles. Drain the water separator bowl weekly or when the WIF (Water In Fuel) light illuminates on your dash. Q: What's the difference between FF5369 and FF5369W? A: The FF5369W includes the water separation layer. The standard FF5369 is particulate-only. For most truck applications, the 'W' version is recommended. Q: Does this come with the O-ring for the filter housing? A: Yes. The FF5369W includes a complete O-ring kit. Always replace O-rings with each filter change to prevent vacuum leaks. Q: Will this fit my Freightliner Cascadia with DD15? A: Yes. This is the correct filter for Cascadia models with Detroit DD13, DD15, and DD16 engines using the chassis-mounted fuel filter housing. Order your iFJF replacement part today and experience the quality difference. Fast shipping from our US warehouse.