Delphi FG1999 Fuel Pump Module Assembly - Left

Fuel Pump Module Assembly for Mustang

Delphi FG1999 is an in-tank fuel pump module assembly for gas applications, built for 12-volt systems and regulated fuel delivery. It includes a fuel level sender assembly and strainer, making it a direct replacement option for the left side of select Ford Mustang models.

Key Features

• In-tank electric fuel pump module assembly for gas fuel systems
• Built with an integrated regulator and 63 psi maximum pressure rating
• 12.0-volt design with blade terminals and male terminal ends
• Quick-connect outlet with 0.375 in. outside diameter
• Includes fuel level sender assembly and strainer
• Standard replacement part for OE-style fuel delivery service
• Delphi FG1999 is backed by OE heritage and aftermarket application coverage

Detailed Description

Delphi FG1999 fuel pump module assembly is engineered for in-tank installation on the left side of 2015-2017 Ford Mustang models. It is designed for gas fuel systems and supports regulated fuel delivery with a system pressure rating of 60 psi and a maximum pressure of 63 psi. The module includes an internal strainer, quick-connect outlet, and fuel level sender assembly, helping restore consistent fuel supply and tank level reporting. Delphi FG1999 reflects Delphi’s long OE supply background and application knowledge, which is built into its aftermarket fuel system coverage. This part cross-references Ford FR3Z 9H307-B for the same application.

What It Helps Solve

• Hard starting caused by weak or failing fuel delivery
• Engine hesitation or stalling from inconsistent pump output
• Incorrect fuel gauge readings from a worn sender assembly
• Fuel pressure loss in the tank-mounted pump module
• Fuel starvation symptoms under load in a Ford Mustang

Installation Notes and Tips

Fits 2015-2017 Ford Mustang, left. Clean the fuel tank before installing the fuel pump to prevent future seal problems. Verify connector style, outlet type, and pressure requirements before installation. Delphi FG1999 is an in-tank module, so access and replacement procedures should follow the vehicle service manual.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplies components to major automakers, with OE-based engineering knowledge applied to its aftermarket fuel system parts. FG1999 is a standard replacement fuel pump module assembly for select Ford Mustang applications.