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Fleetguard FS1212 Fuel Water Separator Assembly - Image 1
Fleetguard FS1212 Fuel Water Separator Assembly - Image 2
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Fleetguard FS1212 Fuel Water Separator Assembly


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Filter TypeSpin-On Fuel Water Separator
Micron Rating20 Micron
Media TypeCellulose / Stratapore
Thread Size1-14 UNS-2B
Overall Height201.17 mm (7.92 in)
Outer Diameter93.22 mm (3.67 in)
Gasket Outer Diameter71.88 mm (2.83 in)
Water Separation Efficiency96% Emulsified, 90% Free Water
Operating PressureUp to 100 psi (6.9 bar)
Flow DirectionOutside to Inside
Manufacturer No.
FS1212
OEM Part No.
330863833158433684957138554256-8753600-319-36101214920H1
Engine Part No.
Cummins N14Cummins 855 Big CamCummins ISM11Cummins ISXCummins C15Cummins C16Cummins C12Cummins ISF2.8Cummins KTA19Cummins NTA855
Interchange No.
P558000BF121233405340586693LFF8020FF104FF105FF105CFF105DFF213
Fitment Vehicles
Freightliner FLD120Peterbilt 379Kenworth W900Volvo VNLKomatsu PC200Hyundai ExcavatorDoosan DX225Foton AumarkDaewoo Truck

Fuel System - Industrial Encyclopedia

OEM replacement spin-on fuel water separator with 20-micron cellulose media, 1-14 UNS-2B thread, 7.92 in height. Fits Cummins N14, ISX, ISM, and heavy-duty truck applications.