Dorman 904-459 Water in Fuel (WiF) Sensor

Dorman 904-459 Water in Fuel Sensor

The Dorman 904-459 water in fuel sensor is a direct replacement for diesel fuel systems that use a pin-terminal, plastic-housing sensor. It matches the function and performance of the original equipment unit to help detect water in the fuel supply before it can damage a diesel fuel injector.

Compatible With 2005-2007 Ford F-250 Super Duty and 2005-2007 Ford F-350 Super Duty, this sensor supports accurate water-in-fuel monitoring for diesel applications. The Dorman 904-459 is built from quality materials and tested for durability in demanding fuel system conditions.

Key Features

• Water in fuel sensor for diesel fuel delivery systems
• OE-style replacement function and performance
• Pin terminal type for the specified application
• Plastic housing construction
• No attached lead wires
• Wiring harness not included
• Fits 2005-2007 Ford F-250 Super Duty and 2005-2007 Ford F-350 Super Duty

Detailed Description

This fuel system sensor monitors for water contamination in diesel fuel and helps trigger the vehicle’s warning strategy before contamination reaches sensitive injector components. It is a practical replacement for a failed or inaccurate sensor on Ford Super Duty diesel applications. This part cross-references Standard Ignition FWSS114 for the same application.

Use the Dorman 904-459 when you need a replacement water-in-fuel sensor for 2005-2007 Ford F-250 Super Duty or 2005-2007 Ford F-350 Super Duty diesel models. The part number 904-459 is also referenced by common interchange numbers used in the aftermarket.

What It Helps Solve

• Water-in-fuel warning light or sensor fault concerns
• Incorrect contamination detection in the diesel fuel system
• Injector damage risk from untreated water in fuel
• Failed OE sensor on Ford F-250 Super Duty and Ford F-350 Super Duty diesel applications

Installation Notes and Tips

Confirm the terminal style, housing design, and harness configuration before installation. This sensor uses pin terminals and does not include attached lead wires or a wiring harness, so the existing connector and vehicle-side wiring must match the application. Verify the vehicle is a 2005-2007 Ford F-250 Super Duty or 2005-2007 Ford F-350 Super Duty diesel model before ordering.

Quality Assurance

Dorman manufactures this replacement sensor to match OE function and performance, and it has undergone extensive testing for durability. The part number 904-459 is built for dependable service in diesel fuel delivery systems.