Fleetguard® FS1003 fuel water separator spin-on
Fleetguard® FS1003 fuel water separator spin-on
BRAND: Fleetguard Atmus Filtration Technologies | SKU: Fleetguard-FS1003

Fleetguard FS1003 Fuel Water Separator Filter

$41.75 $56.43 $56.43 /
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The Fleetguard FS1003 Fuel Water Separator Filter ensures optimal protection against water and contaminants in diesel fuel. Designed for Cummins ISB, ISL, ISM, and PACCAR PX8 engines, it features Stratapore filtration, 10-micron efficiency, and 95% water removal. Made in the USA!
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FS1003 Spin-On Fuel Water Separator Filter with Water In Fuel Sensor - WIF Sensor

The Fleetguard FS1003 Fuel Water Separator Filter offers reliable protection against water and other contaminants in diesel fuel. This high-performance filter is designed for use with several Cummins engine series, including the ISB, ISL, and ISM, providing optimal efficiency for these engine models. Protect your engine from the harmful effects of water contamination with the Fleetguard FS1003 Fuel Water Separator Filter.

The Fleetguard Cummins Filtration FS1003 Water Separator Is In Stock And Ready For Immediate Shipment!

The Fleetguard FS1003 Water Separator applications:

  • Cummins ISB series engines.
  • Cummins ISB02 series engines.
  • Cummins ISL9 series engines.
  • Cummins ISL8.9 series engines.
  • Cummins ISM series engines.
  • Cummins ISM 02 series engines
  • Cummins ISB 6.7 series engines.
  • Cummins ISB 5.9 series engines.
  • PACCAR PX8 Engines.

The premium-grade Diesel Fuel Water Separator Filter is designed for installation on the FH126 filter housing. 

Fleetguard FS-1003 Diesel Fuel/Water Separator specifications:

  • Overall Height is 248.67 mm or 9.79 in.
  • The largest OD is 93.73 mm or 3.69 in.
  • Seam OD 93.47 mm or 3.68 in.
  • Gasket OD 71.98 mm (2.834 in)
  • Gasket Inside Diameter 62.48 mm (2.46 in)
  • Thread Size 1-14 UNS-2B
  • Standpipe Yes
  • Effectively Removes 95% of fuel's emulsified water content.
  • Effectively Removes 95% of fuel entrained water content.
  • Filtration Efficiency TWA BY SAE J 1985  98.7 %
  • This diesel fuel water separator filter is rated as a 10 Micron Filter

    Fleetguard FS1003 Replacement Water Separator benefits:

    • Removes 95% of the Emulsified Water from your diesel fuel.
    • Removes 95% of the Entrained Water from your diesel fuel.
    • This diesel fuel water separator filter features a spin-on drain valve at the bottom of the filter.
    • Filters at a 10 Micron level.
    • This diesel fuel filter contains the patented Stratapore filtration media.
    • This filter is an upgraded version of the FS1003 fuel filter.

    Fleetguard Diesel Fuel Water Separator Filter Cross References:

    • Baldwin BF1263-SP
    • Cummins 3954851
    • Donaldson P551103 
    • Fram PS8687
    • Napa 3604
    • Wix 33604

    Related Parts:

    • Filter Used With: FH126
    • Includes: 3935621
    • Uses Element: FH22239
    • For Upgrade, Use: FS19596
    • Metal Version Of: FS42263
    • Uses Service Gasket: 3933325

    KLM recommends draining this Water Separator FS10003 filter regularly to remove the water contained within it. Preventative maintenance will save you time and money concerning future engine problems. Emulsified water is dispersed within the diesel fuel that the FS1003 Water Separator effectively removes. Regularly removing the water from this FS1003 fuel filter will help prevent freeze-ups in your vehicle's fuel system during winter.

    The Fleetguard FS1003 filter has an upgraded version, the Fleetguard FS19596 filter, which provides increased levels of diesel fuel filtration.

    FASS Fleetguard FS1003 Water Separator Replacement Filter is MADE IN THE USA!

    • By KLM Performance
    • Engine Cummins ISC | Cummins ISL | Cummins ISLE | Cummins N14 | Cummins QSM | Cummins QSC | Cummins QSL | Mercedes MBE900 Series Engines
    • Fuel Type: Diesel Fuel
    • Filter Type: Fuel Water Separator Filter
    • Filtration Level: Ten Microns
    • Item Number: Fleetguard FS1003
    • Make: Fleetguard
    • Manufacturer Part No: Fleetguard FS1003
    • Product Application: Fleetguard Water Separator Filter for Cummins ISC, ISL, ISLE, N14, QSM, QSC, QSL, and Mercedes MBE900 Series Engines
    • Brand: Fleetguard Atmus Filtration Technologies
    • Height: 14 inches
    • Width: 6 inches
    • Largest Outer Diameter (OD): 3.71 inches
    • Gasket Outer Diameter (OD): 2.83 inches
    • Gasket Inside Diameter (ID): 2.45 inches
    • Length: 9.79 inches
    • Thread Size: 1-14 UNS-2B
    • Standpipe: Yes
    • Primary Particle Efficiency: 10 Micron (c) @ 98.7%
    • Emulsified Water Separation Efficiency: 95%
    • Manufacturer: Fleetguard Cummins Filtration
    • Product Note: The Fleetguard Cummins Filtration Diesel Fuel Water Separators are designed to provide superior filtration to ensure the longevity of your entire fuel injection system.
    • FAQ: How often should I drain this Fleetguard Cummins Filtration FS1003 Water Separator Filter?
      • The drain interval depends on the miles driven and the quality of diesel fuel obtained.
      • We recommend draining this filter at least once a month since all diesel fuel has some degree of water in it.
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    Customer Reviews

    Based on 2 reviews
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    R
    Ron Richards
    Excellent Performance

    I've been using the Fleetguard FS1003 for years, and it continues to provide excellent performance in separating water from fuel.

    T
    Tanner Forest
    Great Price - Fast Shipping

    Was looking to see who had these filters in stock and I was very pleased with the immediate shipment tracking number - Thank you!

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