Fuel Pump BMW X5 F15 Left N/S 40eX Fuel Tank Pump Sender Unit Hybrid 7366123

Fuel Pump BMW X5 F15 Left N/S 40eX Fuel Tank Pump Sender Unit Hybrid is an original fuel system component responsible for precisely delivering fuel from the tank and measuring its level. This complete pump module with an integrated float (sender unit) is designed for installation on the left side of the tank, ensuring stable operation of the hybrid drive. Thanks to the factory BMW design, the part maintains full compatibility with the X5 F15 fuel system architecture and enables efficient service replacement.

Specifications and technical data

• SKU: 7366123
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7366123
• Substitutable numbers: 7366123, 16117366123
• Location on the vehicle: Left
• Category: Fuel Filters

Purpose and function in the BMW X5 F15 40eX fuel system

The fuel pump module on the left side of the tank in the BMW X5 F15 40eX is responsible for two key tasks: pumping fuel to the rest of the system and continuously measuring its level. In hybrid versions, the precise operation of the pump and sensor is particularly important, as the drive controller manages the cooperation between the internal combustion engine and the electric motor based on accurate fuel quantity data.

This component works with the vehicle's electronics, transmitting fuel level information to the instrument cluster and maintaining the appropriate pre-pressure in the system. A properly functioning fuel pump reduces the risk of engine misfiring, starting problems, and errors related to incorrect fuel level readings.

Construction of the fuel pump module and left-side positioning

The presented module is designed as a complete unit mounted on the left side of the fuel tank. This design facilitates service and replacement – the mechanic removes and installs the entire unit without the need to separate individual components. Factory fitment to the tank geometry guarantees the correct position of the float and stable mounting of fuel lines.

Positioning on the left side of the vehicle is significant both for fuel distribution in the tank and for proper cooperation with other system components. Thanks to this, the fuel system in the BMW X5 F15 40eX maintains proper operating parameters under various load conditions and fuel levels.

Benefits of using an original BMW fuel pump

Using an original fuel pump module in the BMW X5 F15 40eX brings a number of practical service and operational benefits:

• maintenance of factory fuel system operating parameters in the hybrid version,
• secure fitment to the tank and fuel installation on the left side of the vehicle,
• proper cooperation with sensors and drive control electronics,
• reduction of the risk of dashboard errors related to fuel level.

As a result, replacing a worn-out component with an original module allows for restoring the stability of the fuel system and vehicle comfort, without the need for additional installation modifications.

Condition, verification, and selection by part numbers

The offered fuel pump module is an item from the Fuel Filters category, sourced from dismantling, which allows for economical repair while maintaining original BMW specifications. Before being listed, the part is verified for structural compatibility with the specific X5 F15 40eX model version and its left-side positioning.

Selecting the correct module for a specific vehicle should be based on catalog numbers and vehicle data. In case of doubt, it is helpful to compare markings with the existing component or consult a mechanic to ensure full compatibility with the given BMW's fuel system.

Technical support and additional materials

To better understand the role of this module in the entire fuel system, it is worth reading the guide describing the construction and maintenance of the fuel system, including selecting parts by OEM numbers and regeneration principles – this is discussed in detail in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other elements from the same group, such as filter inserts, filter housings, or additional filter modules, check the available parts in the BMW Fuel Filters category.