Delphi FG0400 Fuel Pump Module Assembly

Fuel Pump Module Assembly for GM Cutaway Vans

The Delphi FG0400 fuel pump module assembly is a standard replacement for select Chevrolet Express 3500 and GMC Savana 3500 applications. Built from Delphi’s OE heritage and fuel system experience, it combines the pump, sender, regulator, seal, and strainer in one in-tank module for direct service replacement.

Key Features

• In-tank electric fuel pump module assembly for flex fuel applications
• Includes fuel level sender assembly, regulator, gasket or seal, and strainer
• 12.0-volt design with blade terminals and quick-connect outlets
• Maximum pressure rating of 73.0 and system pressure of 54 psi
• Average flow rating of 28 with average current draw of 11
• Vapor pressure sensor included for supported vehicle systems
• Standard replacement part for service on select GM cutaway chassis vans

Detailed Description

Delphi FG0400 is engineered as an in-tank fuel pump module assembly for vehicles that require a complete fuel delivery service part rather than a pump-only repair. It is built for flex fuel use and includes the fuel level sender assembly, internal strainer, seal, and pressure regulator to support proper fuel delivery and tank-level reporting. The module uses a 4-terminal blade connection, male terminals, and quick-connect outlets for service-friendly installation. This part cross-references Airtex Fuel Pumps E3583M and Spectra Premium SP3583M for the same application.

Fits 2006-2008 Chevrolet Express 3500, N/A; Fits 2006-2008 GMC Savana 3500, N/A; Fits 2004-2005 Chevrolet Express 3500, N/A; Fits 2004-2005 GMC Savana 3500, N/A. These applications are limited to vehicles without a 55 gallon tank and with cutaway chassis, with 2004-2005 Chevrolet Express 3500 and GMC Savana 3500 also requiring California Emission System RPO NC8.

What It Helps Resolve

• Hard starting caused by weak fuel delivery
• Fuel pressure loss under load
• Inaccurate fuel level readings from a worn sender
• Intermittent stalling related to pump wear
• Fuel system service needs on high-mileage GM van platforms

Installation Notes and Tips

Before installing Delphi FG0400, clean the fuel tank to reduce the risk of contamination damaging the replacement pump. Delphi recommends using fuel tank cleaning kit FC01 for this service. Confirm the vehicle has the correct tank size, cutaway chassis configuration, and emission setup before installation. Verify electrical connector style, outlet type, and fuel system pressure requirements during diagnosis.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplies components to major automakers, with OE-based engineering knowledge built into its aftermarket fuel system parts. FG0400 is a standard replacement module built to support the original fuel delivery layout on the listed Chevrolet Express 3500 and GMC Savana 3500 applications.