Delphi FG0864 Fuel Pump Module Assembly

Fuel Pump Module Assembly for Ford Explorer and Mercury Mountaineer

The Delphi FG0864 fuel pump module assembly is a direct-fit replacement for select 2003 Ford Explorer and 2003 Mercury Mountaineer applications built from 12/10/2002. It combines the in-tank electric pump, fuel level sender, regulator, seal, and strainer in one service assembly for a streamlined repair.

Built from Delphi’s OE heritage and aftermarket engineering experience, this module is specified for flex fuel systems and supports the pressure and flow requirements of the original application.

Key Features

• Delphi FG0864 fuel pump module assembly for in-tank service
• Fits 2003 Ford Explorer and 2003 Mercury Mountaineer, N/A
• 12-volt electric pump with 59 psi system pressure and 80 psi maximum pressure
• Fuel level sender assembly included for accurate tank level reporting
• Regulator, gasket or seal, and strainer included
• Quick-connect outlet design with two outlets and 0.375 in. outlet outside diameter
• Standard replacement grade for flex fuel applications
• 8-pin male terminal configuration

Detailed Description

The Delphi FG0864 is a fuel pump module assembly engineered for select Ford Explorer and Mercury Mountaineer vehicles that require an in-tank replacement with integrated fuel delivery and level-sensing components. It includes the pump module, float arm, seal, and instruction sheet, along with a built-in regulator and fuel level sender assembly. The module is designed for flex fuel use and features an external strainer, quick-connect outlet, and pin-style electrical terminals for a factory-style service fit.

This part cross-references Airtex Fuel Pumps E2350M and Carter P76157M for the same application. For buyers searching for a 2003 Ford Explorer fuel pump module assembly or a 2003 Mercury Mountaineer fuel pump replacement, Delphi FG0864 provides the OE-style configuration needed for proper fuel delivery and sender operation.

Common Problems This Part Can Help Solve

• Hard starting caused by weak or failing fuel pressure
• Engine stalling from inconsistent in-tank fuel delivery
• Incorrect fuel gauge readings from a worn sender assembly
• Fuel starvation under load due to pump wear or contamination
• Driveability issues related to flex fuel system fuel supply

Installation Notes and Tips

Before installing the Delphi FG0864, clean the fuel tank to reduce the risk of contaminating the replacement pump. Delphi recommends using fuel tank cleaning kit FC01 for this application. Confirm the vehicle build date, since fitment applies to 2003 Ford Explorer and 2003 Mercury Mountaineer vehicles built from 12/10/2002. Verify connector style, outlet configuration, and tank condition before installation.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge used by major automakers. That OE background is reflected in the FG0864 fuel pump module assembly, which is built as a standard replacement for the specified Ford and Mercury applications.