PF9804 FUEL WATER SEPARATOR FILTER FS19915WE A0000903651 FOR DD13 DD15 DD16 ENGINES

iFJF part No.: FJ-9915. Product Overview The iFJF PF9804 Fuel Water Separator Filter is a critical fuel system component for Detroit Diesel DD13, DD15, and DD16 engines powering Class 8 heavy-duty trucks. This filter removes both water and particulate contaminants from diesel fuel before it enters the high-pressure common rail injection system. Replaces FS19915WE and A0000903651. Manufactured to IATF 16949 quality standards for reliable performance in demanding commercial trucking applications. Key Features Dual-Stage Filtration : Removes both emulsified water and solid particles from diesel fuel protects injectors, pumps, and the entire fuel system. DD13/DD15/DD16 Coverage : Engineered specifically for Detroit Diesel heavy-duty engines used in Freightliner Cascadia, Western Star, and commercial truck platforms. High-Efficiency Water Separation : Specialized coalescing media separates microscopic water droplets from fuel, preventing injector tip erosion and microbial growth. Class 8 Truck Durability : Built for the extreme duty cycles of over-the-road trucking high flow rates, extended service intervals, and vibration resistance. IATF 16949 Certified Manufacturing : Meets the same quality standards demanded by major OEM suppliers. Engine Compatibility Engine Displacement Vehicle Applications Detroit DD13 12.8L Freightliner Cascadia, M2 112, Western Star 4700 Detroit DD15 14.8L Freightliner Cascadia, Western Star 4900/5700XE Detroit DD16 15.6L Freightliner Cascadia, Western Star 4900/6900 Cross-Reference Numbers Manufacturer Part Number iFJF / Aftermarket PF9804 OEM Cross-Reference FS19915WE, A0000903651 Maintenance Interval Replace every 25,000-30,000 miles or at every other oil change for highway trucks. Drain the water separator bowl weekly or when the water-in-fuel warning light illuminates on the dashboard. Neglecting water drainage can lead to injector damage and costly repairs. Frequently Asked Questions Q: Will this fit my 2019 Cascadia with DD15? A: Yes. The PF9804 is the correct fuel water separator for all DD15 engines used in Freightliner Cascadia models. Q: What's the difference between PF9804 and R61709? A: Both are fuel water separators for DD13/DD15/DD16. Check your truck's filter housing part number to confirm the correct filter. These are often interchangeable in the same housing. Q: How often should I drain the water separator? A: Weekly or whenever the water-in-fuel dashboard warning light activates. Regular draining prevents water accumulation that can damage injectors. Q: Does this filter remove water from diesel? A: Yes. The specialized coalescing media separates both free and emulsified water from diesel fuel for complete fuel system protection. Q: Can I change this filter myself? A: Yes, fuel filter replacement is standard fleet maintenance. Fill the new filter with clean diesel before installation, then prime the system before starting. Related Products LF17511 Oil Filter for DD13/DD15/DD16 R61709 Fuel Filter Water Separator for DD13/DD15/DD16