FS19797 Heavy Duty Fuel Water Separator Cartridge, 4.24 in (108 mm) Height, Replaces Fleetguard FS19797, Donaldson P550527, Baldwin PF7812

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FS19797 fuel water separator, 4.24 in tall, 3.34 in OD. Replaces Fleetguard FS19797, Donaldson P550527, Baldwin PF7812, Luber-Finer L4604F.

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Description

The FS19797 fuel water separator is a heavy duty diesel fuel/water separator cartridge, 4.24 inches (108 mm) tall with a 3.34 inch (85 mm) largest outside diameter, used to remove water and particles from diesel fuel before it reaches the injectors and fuel pump. IXIN Filter manufactures this FS19797 fuel water separator as a factory-direct replacement for the Fleetguard FS19797, Donaldson P550527, Baldwin PF7812 and Luber-Finer L4604F, giving distributors, fleets and repair shops a dependable option for scheduled diesel fuel filter service.

IXIN has produced filters since 2010 and supplies customers in more than 60 countries. Browse our full range of fuel filters for trucks, buses, construction and agricultural machinery.

FS19797 Fuel Water Separator Specifications

Attribute Detail
Part Number FS19797
Product Type Heavy Duty Fuel/Water Separator, Cartridge
Overall Height 108 mm (4.24 in)
Outside Diameter (Largest) 85 mm (3.34 in)
Replaces Fleetguard FS19797 / Donaldson P550527 / Baldwin PF7812 / Luber-Finer L4604F

Please confirm dimensions against your sample or drawing before ordering in bulk.

What Does a Fuel Water Separator Do?

Water is one of the most damaging contaminants in diesel fuel. It causes corrosion, supports microbial growth and can damage injectors and high-pressure pumps. A fuel water separator removes free water from the fuel and filters out dirt in the same step, so that cleaner, drier fuel reaches the engine. Separators are normally replaced on a schedule, and some systems have a drain or a water-in-fuel sensor to remove the collected water between services. Check your system’s drain and sensor requirements when you replace the FS19797 fuel water separator.

Compatible Applications

A public catalog listing for the Fleetguard FS19797 shows the cross references for this cartridge, including Ford OE numbers 3C3Z-9N184-CA and 3C3Z-9N184-CB. It does not give a list of specific engines or trucks.

Fit can vary by engine, model year and fuel filter housing. Please confirm your engine, model year and the OE number of your existing filter before ordering the FS19797 fuel water separator. If you only have a photo or the old filter, send it to us and we will help check the match.

FS19797 Fuel Water Separator Cross Reference / Replacement Numbers

The FS19797 fuel water separator is a cross reference to the following part numbers:

Brand / Source Part Number
Fleetguard FS19797
Donaldson P550527
Baldwin PF7812 / PF7812KIT
Luber-Finer L4604F
WIX 33899
Ford 3C3Z-9N184-CA / 3C3Z-9N184-CB
ACDelco GF691
AFE 44-FF006
AMS FFK60
Alliant Power AP60902

OE and aftermarket part numbers are listed for reference only. All brand names belong to their respective owners, and IXIN is not affiliated with them. For official Luber-Finer numbers, you can also use Luber-finer’s online parts lookup and compare the result with our FS19797 fuel water separator data.

Why Fuel Filter Replacement Matters

Dirt, rust and water in diesel fuel can damage injectors and high-pressure fuel pumps. A fuel water separator captures these contaminants before the fuel reaches the engine. Regular replacement of the FS19797 fuel water separator helps prevent hard starting, power loss and costly injector repairs, especially on engines that run long hours or are refueled from less clean sources.

Why Choose IXIN’s FS19797 Fuel Water Separator

  • Factory-Direct Supply: IXIN manufactures filters in its own factory in Linxi County, Hebei. You deal with the manufacturer, not a trading company.
  • Wide Cross-Brand Coverage: One FS19797 fuel water separator replaces Fleetguard, Donaldson, Baldwin, Luber-Finer and WIX references, which helps distributors simplify inventory.
  • Defined Size for Easy Matching: A clear 108 mm height and 85 mm largest outside diameter make it simple to compare the FS19797 fuel water separator against the cartridge you are replacing.
  • Quality Filter Paper: We build our filters with media from a dedicated filter paper manufacturer. Read how high-quality filter paper improves truck air, oil and fuel filter performance.
  • Customization Available: We support customization of filter paper quality, metal thickness and packaging for your market.
  • Fast Delivery: In-stock items usually ship in 5 to 10 days. Made-to-order items take 15 to 45 days, depending on quantity.

To avoid cross-reference mistakes, read our filter cross reference guide before placing a bulk order for the FS19797 fuel water separator.

Installation and Maintenance Notes

  1. Switch off the engine and let it cool. Close the fuel shutoff valve if fitted.
  2. Place a drain pan under the filter housing, and release the fuel pressure as described in the engine manual.
  3. Open the housing, drain any collected water and remove the old cartridge. Check that the old seals came out with it. A leftover seal can cause leaks.
  4. Clean the housing and sealing surfaces, and lightly oil the seals of the new FS19797 fuel water separator.
  5. Fit the new cartridge and close the housing, tightening as specified by the engine manufacturer.
  6. Prime the fuel system according to the engine manual, start the engine, and check for leaks.
  7. Replace the filter at the interval recommended by the engine maker, and sooner when using poor-quality fuel or when the water-in-fuel warning comes on.

FAQ

Q: Which part numbers does the FS19797 fuel water separator replace?
A: It is a cross reference to Fleetguard FS19797, Donaldson P550527, Baldwin PF7812, Luber-Finer L4604F, WIX 33899, Ford 3C3Z-9N184-CA and others listed above. Confirm fit before bulk orders.

Q: What are the dimensions of the FS19797 fuel water separator?
A: It is a cartridge about 108 mm (4.24 in) tall with an 85 mm (3.34 in) largest outside diameter.

Q: Which engines and trucks does the FS19797 fuel water separator fit?
A: Public catalogs list the cross references and Ford OE numbers, but not a model list. Fit depends on your fuel filter housing, so send us your OE number, engine model or a photo of the old filter, and we will help confirm.

Q: Is the Baldwin PF7812KIT the same as the FS19797?
A: Baldwin lists PF7812 and a PF7812KIT as cross references. The kit may include extra parts such as seals, so please confirm what you need before ordering.

Q: Can I order the FS19797 fuel water separator with custom packaging or private label?
A: We support customized packaging, filter paper quality and metal thickness. Contact our sales team with your requirements.

Q: What are the MOQ and lead time?
A: In-stock goods generally ship in 5 to 10 days, and made-to-order items take 15 to 45 days, depending on quantity. Get in touch with us for MOQ on the FS19797 fuel water separator.

Need the FS19797 fuel water separator or other heavy duty diesel fuel filters? Send us the OE number, and we will reply with specifications and a quotation.
Email: sales@ixinfilters.com | WhatsApp: +86 18833443345 | Get a quote