Delphi FG1055 Fuel Pump Module Assembly

Delphi FG1055 Fuel Pump Module Assembly

Delphi FG1055 is an in-tank fuel pump module assembly built for flex-fuel applications and direct replacement service. It combines the pump, fuel level sender assembly, regulator, seal, and strainer in one unit for service on select Cadillac Escalade ESV, Chevrolet Suburban 1500, GMC Yukon XL 1500, Cadillac Escalade EXT, and Chevrolet Avalanche models.

With OE heritage and fuel system experience built into the design, this Delphi fuel pump module assembly supports consistent fuel delivery, accurate tank level reporting, and proper system pressure for the listed applications.

Key Features

• In-tank electric fuel pump module assembly for 12-volt systems
• Built for flex-fuel applications
• Includes fuel pressure regulator and fuel level sender assembly
• Quick-connect outlet design with two outlets
• Internal strainer and fuel pump seal included
• Maximum pressure rating of 78 psi and system pressure of 73 psi
• Blade terminals, male terminal ends, and 4-terminal configuration
• Average current draw of 11 amps with average flow rating of 20
• Vapor pressure sensor included

Product Details

Delphi FG1055 is a standard replacement fuel pump module assembly engineered for in-tank installation. It features a 0.375-inch outlet outside diameter, quick-connect outlet type, and an internal strainer arrangement for fuel delivery service. The module includes the fuel level sender assembly, with resistance values of 250 ohms empty and 40 ohms full for level monitoring in the vehicle’s fuel system. Delphi’s OE background and broad aftermarket coverage are reflected in the design and application support for select GM full-size SUV and truck platforms.

This part cross-references Airtex Fuel Pumps E3797M and Spectra Premium SP6631M for the same application. Delphi FG1055 is also referenced for 2008-2014 Chevrolet Suburban 1500, 2008-2014 GMC Yukon XL 1500, and 2009-2014 Cadillac Escalade ESV service needs.

Common Fuel System Issues

• Hard starting caused by weak or failing in-tank fuel delivery
• Fuel gauge inaccuracies from a worn sender assembly
• Low fuel pressure or pressure drop under load
• Engine hesitation, stalling, or loss of power from inconsistent fuel supply
• Fuel odor or sealing concerns at the tank module interface

Installation Notes

Before installation, clean the fuel tank to prevent future seal problems, as noted for the listed applications. Verify connector style, outlet configuration, and system pressure requirements before service. This module uses a quick-connect outlet, blade terminals, and an in-tank layout, so confirm the vehicle’s original setup matches the replacement part number FG1055.

Compatible With 2009-2014 Cadillac Escalade ESV, 2008-2014 Chevrolet Suburban 1500, 2008-2014 GMC Yukon XL 1500, 2009-2013 Cadillac Escalade EXT, and 2008-2013 Chevrolet Avalanche.

Quality Assurance

Delphi builds this fuel pump module assembly using OE-based engineering knowledge and application coverage developed from long-term supplier experience with major automakers. The FG1055 is a direct-fit replacement option for the listed vehicles and fuel system configurations.