Delphi FG1661 Fuel Pump Module Assembly

Fuel Pump Module Assembly for Infiniti FX and QX70

Delphi FG1661 is a standard replacement fuel pump module assembly for select Infiniti FX35, FX37, and QX70 applications. It combines the in-tank electric pump, fuel level sender assembly, regulator, and strainer in one OE-style module for direct service replacement.

Built from Delphi’s OE heritage and decades of supplier experience, this fuel pump module assembly is engineered for 12-volt gasoline systems with a 51 psi system pressure specification. It is a practical choice for restoring fuel delivery and fuel level signal performance on select Infiniti models.

Key Features

• Fuel pump module assembly for in-tank installation
• 12.0V electric pump for gasoline applications
• Regulator included for integrated fuel system service
• Fuel level sender assembly included
• Strainer included with internal strainer design
• Quick-connect outlet with 0.375 in. outside diameter
• Blade terminals, 5-terminal male connection
• Standard replacement grade for OE-style service
• Package includes fuel pump module assembly with float arm and instruction sheet

Product Details

Delphi FG1661 is engineered for select 2010-2012 Infiniti FX35, 2013 Infiniti FX37, and 2014-2015 Infiniti QX70 models. It is a direct-fit fuel pump module assembly for in-tank gasoline fuel systems and includes the fuel level sender assembly, regulator, and strainer. Delphi FG1661 also cross-references CFG1661 for the same application.

Delphi’s aftermarket parts are informed by more than a century of OE experience and a broad portfolio built around vehicle-specific fitment. For Infiniti FX35, FX37, and QX70 owners, this module supports fuel delivery service where the original pump assembly has worn, lost pressure, or developed sender-related issues. Part number FG1661 is listed for the same application across the covered Infiniti models.

Common Issues This Part Can Address

• Hard starting caused by weak fuel pressure
• Engine stalling from inconsistent fuel delivery
• Fuel gauge readings that no longer track the tank level correctly
• Loss of pressure in the in-tank fuel system
• Fuel pump noise or pump wear in the original module

Installation Notes

Fits 2010-2012 Infiniti FX35, N/A; Fits 2013 Infiniti FX37, N/A; Fits 2014 Infiniti QX70, N/A; Fits 2015 Infiniti QX70, N/A. For 2015 Infiniti QX70, fitment is limited to vehicles built through 03/2015. Delphi recommends cleaning the fuel tank before installing a replacement pump to reduce the risk of contamination-related failure and seal problems; use of fuel tank cleaning kit FC01 is recommended for the 2015 QX70 application. Verify connector style, outlet type, and system pressure before installation.

Quality Assurance

Delphi FG1661 reflects OE-based engineering and application-specific design drawn from Delphi’s long history as a supplier to major automakers. The part is built as a standard replacement fuel pump module assembly for the listed Infiniti applications.