Delphi FT4122 Fuel Transfer Unit - Left

Delphi FT4122 Fuel Transfer Unit for BMW X5

The Delphi FT4122 fuel transfer unit is an in-tank fuel delivery component for gasoline applications. It is built with a plastic housing, oval female connector, pin terminals, and a quick-connect outlet layout to match the original-style fuel system configuration on select BMW X5 models.

Compatible with 2007-2010 BMW X5, left position, this unit includes a regulator and gasket or seal for service replacement. Delphi’s fuel system background as an OE supplier is reflected in the component design and application-specific fitment.

Key Features

• Part number: FT4122
• In-tank fuel transfer unit for gas applications
• Fits 2007-2010 BMW X5, left
• Regulator included
• Gasket or seal included
• 2-terminal pin connection with oval female connector
• Quick-connect outlet design
• Plastic housing construction
• Outlet outside diameter: 0.375 in. / 9.5 mm
• Resistance: 990 ohms empty, 51 ohms full

Detailed Description

Delphi FT4122 is a fuel transfer unit for the left side of select BMW X5 vehicles from 2007 through 2010. It is an in-tank, gasoline-specific component with two outlets, a quick-connect outlet type, and a regulator included to match the fuel delivery layout used in the application. The unit also includes a gasket or seal and uses a 2-pin, male terminal arrangement with an oval female connector. For buyers searching for a BMW X5 left fuel transfer unit or Delphi FT4122 fuel pump-related replacement, this part provides the specified OE-style configuration for the listed vehicles.

This part cross-references BMW 16 11 7 195 470 for the same application.

Common Issues This Part Can Address

• Fuel delivery loss from a worn in-tank transfer unit
• Hard starting caused by inadequate fuel supply
• Fuel pressure irregularities in the left-side tank module
• Stalling related to inconsistent gasoline transfer
• Fuel system service needs on a 2007-2010 BMW X5

Installation Notes and Tips

Verify the vehicle is a 2007-2010 BMW X5 with left-side application before ordering. Confirm connector shape, terminal count, outlet style, and regulator configuration against the original unit. Because this is an in-tank fuel component, clean the tank area and inspect the seal surface before installation. Always follow factory service procedures for fuel system depressurization and electrical connection checks.

Quality Assurance

Delphi supplies fuel delivery components to major vehicle manufacturers and has decades of experience in fuel pump and fuel management technology. The FT4122 is built to match the listed OE-style application details for the BMW X5 platform.