Delphi FG1177 Fuel Pump Module Assembly

Delphi Fuel Pump Module Assembly Overview

The Delphi FG1177 fuel pump module assembly is designed for reliable fuel delivery in select BMW models. Engineered as a direct replacement, this electric in-tank fuel pump supports optimal engine performance for BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, and 550i vehicles.

• Outlet outside diameter: 0.313 inches
• Voltage: 12.0 volts
• Fuel type: Gasoline
• Maximum pressure: 109 psi
• Terminal type: Pin, male, with 6 terminals
• Includes gasket and internal strainer
• Electric pump with average flow rating of 44 liters per hour
• System pressure rating: 73 psi
• In-tank installation with hose outlet

Technical Details and Features

The Delphi FG1177 fuel pump module assembly operates at 12 volts and is designed specifically for gasoline fuel systems. It features an internal strainer to prevent debris from entering the fuel system and includes a gasket for a secure seal during installation. The pump delivers an average flow rate of 44 liters per hour and maintains system pressure at 73 psi, with a maximum pressure capacity of 109 psi. The unit uses a pin-type male terminal configuration with six terminals, ensuring proper electrical connectivity. The outlet is designed as a hose type with a 0.313-inch outside diameter, suitable for the fuel lines in compatible BMW models.

Compatible BMW Models and Applications

This fuel pump module assembly is compatible with the following BMW models: 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, and 550i. It is intended for use as a standard replacement part in the fuel delivery system, specifically for in-tank installation. The Delphi FG1177 supports the fuel system's electric pump requirements, ensuring consistent fuel flow and pressure for these vehicles.

Common Issues Addressed by This Fuel Pump Module

• Intermittent or complete fuel delivery failure
• Engine stalling or hesitation during acceleration
• Low fuel pressure causing poor engine performance
• Fuel pump noise or unusual sounds from the tank
• Check engine light related to fuel system faults

Installation Notes and Tips

When installing the Delphi FG1177 fuel pump module assembly, ensure the vehicle's battery is disconnected to prevent electrical hazards. Verify that the gasket is properly seated to avoid fuel leaks. The internal strainer should be inspected for cleanliness before installation. Use appropriate tools to handle the pin-type male terminals carefully to avoid damage. This unit is designed for in-tank installation and requires removal of the fuel tank or access panel depending on the vehicle model.

Quality Assurance and Warranty

Delphi manufactures the FG1177 fuel pump module assembly to meet OEM specifications for fit, form, and function. This standard replacement part undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Delphi products typically include a limited warranty covering defects in materials and workmanship under normal use.