FS20207 Diesel Fuel Water Separator Cartridge for PACCAR MX-13 and Cummins ISX15 Engines, Replaces PACCAR K371021

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FS20207 fuel water separator cartridge for PACCAR MX-13 and Cummins ISX15 engines. Replaces PACCAR K371021, Baldwin PF46236, Donaldson P583177.

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Description

The FS20207 fuel water separator is a cartridge-style diesel fuel and water separator element for PACCAR MX-13 and Cummins ISX15 and X15 engines. IXIN Filter manufactures this FS20207 fuel water separator as a factory-direct replacement for the Fleetguard FS20207 and PACCAR K371021, giving distributors, fleets and repair shops a dependable option for scheduled fuel filter replacement.

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.

FS20207 Fuel Water Separator Specifications

Attribute Detail
Product Type Fuel / Water Separator Cartridge Element
Overall Length 343 mm (13.5 in)
Outside Diameter 106.5 mm (4.19 in)
Inside Diameter 20.6 mm (0.81 in)
Replaces Fleetguard FS20207 / PACCAR K371021

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

Compatible Applications

The FS20207 is a cartridge element used inside a compatible housing. Cross-reference data lists it for:

  • PACCAR MX-13 engines (EPA17)
  • Cummins ISX15 and X15 engines
  • Kenworth T680 and T880
  • Peterbilt 579 and 567

Earlier EPA10 engines use a different cartridge. Fit depends on the engine, housing and model year, so confirm your engine and the OE number of your existing element before ordering.

FS20207 Cross Reference / Replacement Numbers

The FS20207 fuel water separator is a cross reference to the following part numbers:

Brand / Source Part Number
Fleetguard FS20207
PACCAR K371021 (K37-1021)
Baldwin PF46236
Donaldson P583177
WIX WF10566
Carquest 96870
Luber-finer L5113F

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. Always confirm fit against your housing and engine before ordering.

Why a Fuel Water Separator Matters

Water and dirt in diesel fuel can damage injectors and high-pressure fuel pumps. A fuel water separator removes free water and fine contaminants before the fuel reaches the engine. Regular replacement helps prevent hard starting, power loss and costly injector repairs, especially on high-pressure common rail engines and long-haul trucks that refuel from different sources.

Why Choose IXIN’s FS20207 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 FS20207 fuel water separator replaces PACCAR, Baldwin, Donaldson and WIX references, which helps distributors simplify inventory.
  • Cartridge Design: Replacing only the cartridge keeps service simple, and the housing can stay on the truck.
  • 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 fuel filter cross reference guide before placing a bulk order.

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 housing, and drain the water from the separator if a drain is fitted.
  3. Open the housing according to the manufacturer’s instructions, and remove the old cartridge element.
  4. Clean the inside of the housing and check the gasket and seals. Replace worn seals.
  5. Install the new FS20207 fuel water separator cartridge, making sure it seats correctly in the housing.
  6. Close the housing and prime the fuel system according to the engine manual.
  7. Start the engine, check for leaks, and replace the filter at the interval recommended by the engine maker. Replace sooner when using poor-quality fuel.

FAQ

Q: Which part numbers does the FS20207 fuel water separator replace?
A: It is a cross reference to Fleetguard FS20207, PACCAR K371021, Baldwin PF46236, Donaldson P583177, WIX WF10566 and others listed above. Confirm fit before bulk orders.

Q: Is the FS20207 a complete filter or a cartridge?
A: It is a cartridge element. It must be used inside a compatible housing, so check your housing and OE number before ordering.

Q: Which trucks and engines does the FS20207 fit?
A: It is listed for PACCAR MX-13 and Cummins ISX15 and X15 engines in Kenworth T680 and T880 and Peterbilt 579 and 567 trucks. Earlier EPA10 engines use a different cartridge, so send us your OE number, engine model or a photo of the old element, and we will help confirm.

Q: Can I order 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. Get in touch with us for MOQ on the FS20207 fuel water separator.

Need the FS20207 fuel water separator or other heavy-duty 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