Dorman 904-473 Water In Fuel (WiF) Sensor

Water-in-Fuel Sensor Overview

This Dorman water-in-fuel sensor, part number 904-473, matches the function and performance of the original equipment sensor. It is built to help prevent water from damaging a diesel fuel injector and is made from quality materials for durability.

Key Features

• Direct replacement water-in-fuel sensor for diesel fuel systems.
• Black rectangular connector with female terminals and two-pin design.
• Plastic housing for a compact, serviceable sensor assembly.
• No attached lead wires and no wiring harness included.
• Cross-references Standard Ignition FWSS118 and Mopar 68065610AA for the same application.

Detailed Description

Part number 904-473 is a replacement water-in-fuel sensor for Ram diesel fuel applications that require a sensor without a wire harness. It is engineered to replicate the original sensor’s function so the fuel system can detect water contamination before it reaches sensitive injector components. The connector design uses a black rectangular housing with female terminals and a two-terminal layout for straightforward electrical connection.

This sensor is compatible with 2011-2024 Ram 2500, 3500, 4500, and 5500 models, plus 2011-2013 Ram 4000 models. It also fits 2007-2010 Dodge Ram 2500 and 3500 models, 2010 Dodge Ram 4000, and 2008-2010 Dodge Ram 4500 and 5500 models, all with the noted no-wire-harness configuration. For Ram and Dodge Ram diesel owners, 904-473 provides a fitment-specific replacement option that aligns with the original sensor layout.

Common Issues Addressed

• Water contamination warnings in the diesel fuel system.
• Failed sensor readings from a worn or damaged WiF sensor.
• Injector damage risk caused by undetected water in fuel.
• Connector or terminal wear at the sensor interface.
• Replacement needs on vehicles specified without a wire harness.

Installation Notes and Tips

Verify the vehicle uses the no-wire-harness configuration before ordering. Compare the connector shape, terminal style, and housing layout to the original sensor to confirm match-up. This part number 904-473 is intended for Ram and Dodge Ram diesel applications listed in the fitment data, including Ram 2500 and Ram 3500 models.

Quality Assurance

Dorman states that this replacement sensor is made from quality materials and has undergone extensive testing for durability. The part is built to match original equipment function and performance for the specified application.