> Canonical page: https://dieselfuelinjectionrepair.com/parts/fuel-water-separators/

> Summary: Fuel-water separators help manage contamination before it reaches sensitive injection components. Request part-number verification and sourcing guidance from DCT.

DIESEL PARTS / FUEL FILTRATION AND WATER SEPARATION

# Diesel Fuel-Water Separators

Protect your diesel fuel system with the correct water-separator components. Filter housings, bowls, elements and drains must match.

Share the filter or housing number and your equipment details. We can help identify suitable filter, separator or service components.

## Choosing the right filtration system

A separator can involve elements, bowls, drains and water-detection components. Match the parts to the existing housing.

## Match the Right Part to Your Equipment

Send the separator assembly model, element number and identification of the bowl or electrical components.

Include the original housing or filter part number, whether the part is primary or secondary filtration and whether a water separator, heater or drain is involved. The mating assembly determines selection.

## Element, assembly or service-kit decision

A recurring water-in-fuel issue also calls for reviewing tank and handling practices, not only replacing the filter.

Determine whether the part needed is a replacement filter element, a complete base or housing, a water-separator component or a maintenance kit. Follow application-specific service requirements.

## Part Names and Identification

Related names include fuel water separator bowl, drain sensor, water in diesel filter. Match the element or housing number, sealing arrangement and equipment application.

## Need Help Finding This Part?

Have a part number or photo of the original component? Include it with the engine or equipment model and quantity you need. We'll help review matching options and availability.

[Ask Our Parts Team](/parts/find-a-part/)

Looking for a specific component? Explore products listed in our store, or ask us about something you don't see online.

[Visit the Diesel Parts Store](/store/)

## Related Parts and Resources

- [Browse related fuel filtration and water separation](/parts/filtration/)
- [Get Help with a Part Number](/parts/find-a-part/)
- [Shop Diesel Parts](/store/)
- [Learn About This Fuel System](/fuel-injection/contamination/)