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Fleetguard - Cummins Filtration

Fleetguard FS19594

Fleetguard FS19594 Fuel Water Separator

Diesel Fuel Water Separator Filter For Fuel Air Separation Systems produced by both FASS and AirDog

This Fleetguard diesel fuel water separator filter is an Alternative Replacement Water Separator Filter for the Fuel Air Separation Systems. This is a premium grade filter offered at a lower price point then the private labeled diesel fuel filters.

This Fleetguard FS19594 fuel water separator filter benefits:

  • Removes the entrained water only from your diesel fuel
  • Removes the emulsified water only from your diesel fuel
  • Filters to a 20 Micron Level.
  • Contains an integrated drain valve assembly.
  • The filter includes new O-Ring Seals
  • Offered as a direct replacement filter for the FASS and AirDog systems.

Diesel Fuel Water Separator Filter Specifications:

Overall Height 141.71 mm (5.579 in)
Largest OD 76.71 mm (3.02 in)
Seam OD 76.68 mm (3.019 in)
Gasket OD 69.09 mm (2.72 in)
GASKET INSIDE DIAMETER 62.48 mm (2.46 in)
Thread Size 3/4-16 UNF-2B
Standpipe NO
MICRON RATING BY SAE J 1985 20 micron


Fleetguard FS19594 Diesel Water Separator Filter applications:

  • AirDog Fuel Air Separation System
  • AirDog II Fuel Air Separation System
  • AirDog II 4G Fuel Air Separation System
  • FASS 95 Series Fuel Air Separation System with the Blue Body
  • FASS Titanium Series Fuel Air Separation System with the Blue Body

Fleetguard FS19594 filter cross-references:

  • FASS FS-2001
  • AirDog WS100
  • Cummins C6003117480

Designed to remove free and coarse water from your diesel fuel at a 20 Micron level this Fleetguard FS19594 filter is offered as an alternative for the Pureflow AirDog WS100 and FASS FS-2001 diesel fuel filters. The Fleetguard FS19594 Water Separator Filter meets today's high-pressure fuel systems requirements for entrained and emulsified water separation that causes injector tips to wear out prematurely. Installation is simple and will be leak-free with the included replacement seals.

KLM Performance recommends regularly draining this fleetguard diesel fuel water separator filter to remove the water contained within this filter. Periodically removing the water from this Fleetguard water separator filter will help to prevent freeze-ups in your vehicle fuel system during the winter months. KLM Performance recommends keeping a spare set of the FASS and AirDog Replacement Filters in your truck at all times.

The Fleetguard Replacement Water Separator Filter is MADE IN THE USA!

  • Flow Rate: 95 to 260 GPH
  • Fuel Type: Diesel Fuel
  • Filter Type: Fuel Water Separator Filter
  • Filtration Level: Twenty Micron
  • Item Number: Fleetguasrd FS19594
  • Manufacturer Part No: FS19594
  • Product Application: Fuel Water Separator for the AirDog, AirDog II, AirDog II 4G, and FASS 95 Series Diesel Fuel Pumps
  • Height: 4
  • Width: 8
  • Brand: Fleetguard
  • FAQ: How often should I drain this diesel fuel water separator filter? This water separator filter drain interval is dependent upon two major factors. The quality of the diesel fuel consumed and the vehicle use cycle. The more you drive the vehicle the more this filter needs to be drained. Frequent drain intervals ensure the effective removal of water contained within the filter which results in trouble-free operation.
  • Part Number: FS19594
  • Manufacturer: Fleetguard
  • Product Note: This Fleetguard diesel fuel water separator filter removes both entrained and emulsified water from your diesel fuel.

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