Delphi FG0399 Fuel Pump Module Assembly

Delphi FG0399 Fuel Pump Module Assembly

Delphi FG0399 is an in-tank fuel pump module assembly built for flex-fuel applications that need stable fuel delivery and accurate level reporting. It combines the pump, regulator, sender, seal, and strainer in one OE-style replacement package for service on Chevrolet Express and GMC Savana vans.

• In-tank electric fuel pump module assembly for flex-fuel systems
• Includes fuel level sender assembly, float arm, seal, instruction sheet, and strainer
• Integrated regulator included for controlled system pressure
• Quick-connect outlet design with 3 outlets and 4 blade terminals
• 13.0-volt operation with 11-amp average current draw
• Maximum pressure rated to 73.0 psi; system pressure 54 psi
• Vapor pressure sensor included
• Standard replacement grade for service repair

OE-Style Fuel Delivery Performance

Built from Delphi’s OE heritage and supplier experience, FG0399 is engineered for vehicles that rely on consistent fuel pressure, accurate sender feedback, and dependable in-tank operation. It is a direct replacement fuel pump module assembly for 2004-2008 Chevrolet Express 1500, 2004-2008 Chevrolet Express 2500, 2004-2008 Chevrolet Express 3500, 2004-2008 GMC Savana 1500, 2004-2008 GMC Savana 2500, and 2004-2008 GMC Savana 3500. This part cross-references Bosch 66074 and Carter P76087M for the same application. Delphi FG0399 is also listed with interchange references including DFG0399 and M10079.

Common Problems This Part Can Address

• Hard starting caused by weak fuel pressure
• Engine hesitation or stalling from inconsistent fuel delivery
• Incorrect fuel gauge readings from a worn sender
• Fuel pump noise or loss of prime from an aging module
• Driveability issues in flex-fuel vans with failing in-tank components

Installation Notes and Fitment Tips

Compatible With 2004-2008 Chevrolet Express 1500, N/A; 2004-2008 Chevrolet Express 2500, N/A; 2006-2008 Chevrolet Express 3500, N/A; 2004-2008 Chevrolet Express 3500, N/A; 2004-2008 GMC Savana 1500, N/A; 2004-2008 GMC Savana 2500, N/A; 2006-2008 GMC Savana 3500, N/A; and 2004-2008 GMC Savana 3500, N/A. Notes apply to specific configurations, including 31-gallon tank applications and exclusions for left side rear hinged door, and some models exclude cutaway chassis. Clean the fuel tank before installation to reduce the risk of contaminating the replacement pump; Delphi recommends fuel tank cleaning kit FC01. Verify outlet style, terminal count, and tank configuration before service.

Quality Assurance

Delphi builds this fuel pump module assembly using OE-focused engineering and application knowledge developed through long-term original equipment supply. The FG0399 is designed as a standard replacement part with the components needed for fuel delivery service on the listed Chevrolet Express and GMC Savana applications.