Dorman 904-438 Water in Fuel (WiF) Sensor

Water in Fuel Sensor for Diesel Protection

This Dorman water in fuel sensor helps monitor diesel fuel contamination so water can be identified before it reaches sensitive injector components. Built with a plastic housing and pin terminal design, Dorman 904-438 is a direct replacement for the original sensor used on select Ford Super Duty diesel applications.

Key Features

• Replacement water-in-fuel sensor for diesel fuel systems
• Matches the function and performance of the original equipment sensor
• Plastic housing for application-specific fitment
• Pin terminal connection
• No attached lead wires and no wiring harness included
• Designed for select 2011-2016 Ford F-250 Super Duty and Ford F-350 Super Duty models

Detailed Description

Dorman 904-438 is a fuel system sensor used to detect water in diesel fuel before it can contribute to injector damage. It is built as an OE-style replacement for the factory unit and uses quality materials that have been tested for durability. For buyers searching for a water in fuel sensor for 2011-2016 Ford F-250 Super Duty or a replacement water in fuel sensor for 2011-2016 Ford F-350 Super Duty, this part provides the correct sensor-style service replacement for the listed applications. This part cross-references Ford (e.g., BC3Z9T321A) for the same application.

What It Helps Address

• Water contamination warnings in the diesel fuel system
• Faulty or inaccurate water-in-fuel sensor readings
• Loss of protection against water reaching diesel injectors
• Service replacement needs after sensor wear or electrical failure

Installation Notes and Tips

Verify connector style, terminal type, and vehicle application before installation. This sensor uses a pin terminal design, has no attached lead wires, and does not include a wiring harness. Confirm the original sensor location and inspect the surrounding fuel system components for contamination or damage during service. Fits 2011-2016 Ford F-250 Super Duty and Fits 2011-2016 Ford F-350 Super Duty.

Quality Assurance

Dorman manufactures this replacement sensor to match OE function and performance, and it has undergone extensive testing for durability. The part number 904-438 is built for dependable service in the specified diesel applications.