Delphi FG1277 Fuel Pump Module Assembly

Delphi FG1277 Fuel Pump Module Assembly

The Delphi FG1277 fuel pump module assembly is a standard replacement for select Nissan and INFINITI applications, including Armada, TITAN, QX56, and Pathfinder Armada models. Built for in-tank use, it combines the fuel pump, fuel level sender assembly, regulator, and strainer in one service-ready module.

Key Features

• 12-volt electric in-tank fuel pump module assembly
• Maximum pressure rated at 52.0 with a system pressure of 51 psi
• Fuel pressure regulator included
• Fuel level sender assembly included
• Strainer included; quick-connect outlet design
• Male blade terminals with 5-terminal configuration
• Designed for flex-fuel applications
• Standard replacement part backed by Delphi OE heritage

Detailed Description

Delphi FG1277 is engineered as an in-tank fuel pump module assembly for vehicles that require stable fuel delivery and accurate fuel level reporting. It features an electric pump, external strainer, quick-connect outlet, and integrated sender assembly to support consistent operation in the fuel system. Delphi draws on more than 100 years of OE experience and supplier knowledge used by major automakers, bringing that engineering background into aftermarket replacement parts such as the FG1277.

This part cross-references Airtex E8595M and Spectra Premium SP4004M for the same application. Fits 2005-2015 Nissan Armada, N/A; Fits 2004-2015 Nissan TITAN, N/A; Fits 2004-2010 INFINITI QX56, N/A; Fits 2004 Nissan Pathfinder Armada, N/A.

Common Problems This Part Can Address

• Hard starting caused by weak fuel delivery
• Engine stalling from inconsistent fuel pressure
• Fuel gauge readings that no longer track correctly
• Loss of power under load from a failing pump module
• Fuel system service needs on high-mileage Nissan Armada, TITAN, or INFINITI QX56 models

Installation Notes and Tips

Before installation, clean the fuel tank thoroughly to reduce the risk of future seal problems. Verify connector style, outlet configuration, and system pressure requirements before replacing the original module. Because this assembly is designed for in-tank use, inspect the tank opening and surrounding components for contamination or wear during service.

Quality Assurance

Delphi builds this fuel pump module assembly using OE-based engineering and application knowledge developed through long-term supplier experience with major automakers. The FG1277 is a standard replacement part for select Nissan and INFINITI fuel systems.