Delphi FG1239 Fuel Pump Module Assembly

Delphi FG1239 Fuel Pump Module Assembly

The Delphi FG1239 fuel pump module assembly is a standard replacement for select BMW applications that require an in-tank electric fuel delivery unit. Built from Delphi’s OE heritage and fuel system experience, it combines a fuel pump, fuel level sender assembly, and internal strainer in one service part for direct replacement use.

Key Features

• In-tank electric fuel pump module assembly for gasoline applications
• 12.0-volt operation with a maximum pressure rating of 80.0
• Average flow rating of 60 with an average current draw of 7
• Fuel level sender assembly included for integrated tank level reporting
• Internal strainer included; quick-connect outlet for service-friendly connection
• Standard replacement design for OE-style fuel system service
• Delphi FG1239 part number for accurate catalog matching

Detailed Description

Delphi FG1239 is an in-tank fuel pump module assembly built for gasoline fuel systems and engineered for select BMW 525i, 530i, 545i, 550i, 645Ci, and 650i models. It uses a pin-style, male terminal layout with six terminals, a quick-connect outlet, and a 0.313-inch outlet outside diameter. The module includes the fuel level sender assembly and internal strainer, while the regulator, gasket or seal, and lock ring are not included. Delphi’s OE background supports consistent fuel delivery and sender performance for vehicles that depend on stable system pressure and accurate tank level feedback.

This Delphi FG1239 fuel pump module assembly is a direct-fit service part for BMW fuel system repair where the original pump has weakened, lost pressure, or caused inaccurate fuel level readings. This part cross-references Bosch 69839 for the same application.

What It Helps Address

• Hard starting caused by low fuel pressure
• Engine hesitation or stalling under load
• Fuel gauge readings that are inaccurate or inconsistent
• Loss of fuel delivery from a worn in-tank pump
• Fuel system service needs on select BMW 550i, 650i, and 5 Series models

Installation Notes and Tips

Fits 2008-2010 BMW 550i, N/A; 2006-2010 BMW 650i, N/A; 2006-2007 BMW 550i, N/A; 2004-2005 BMW 525i, N/A; 2004-2005 BMW 530i, N/A; 2004-2005 BMW 545i, N/A; and 2004-2005 BMW 645Ci, N/A. Fitment notes call for cleaning the fuel tank before installation to reduce the risk of contamination-related pump failure and seal problems. Use of fuel tank cleaning kit FC01 is recommended for the 2008-2010 BMW 550i application. Verify connector style, outlet type, and tank configuration before installation.

Quality Assurance

Delphi draws on more than 100 years of OE experience and a broad aftermarket portfolio built from supplier knowledge used by major automakers. The FG1239 is a standard replacement fuel pump module assembly intended to meet the needs of the listed BMW applications with OE-informed design and fuel system compatibility.