BMW X3 E83 2.0d M57N2 3.0d M57N2 Fuel Tank Pump Sender Delivery Unit 6763277

BMW X3 E83 2.0d M57N2 3.0d M57N2 Fuel Tank Pump Sender Delivery Unit is an original component from the Fuel pumps and level sensors group, designed for the diesel fuel supply system in the BMW X3 E83 model. This used OEM part allows for maintaining the factory performance parameters of the powertrain, ensuring stable fuel delivery and proper integration with the vehicle's electronics.

Specifications and technical data

• SKU: 6766163
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6766163
• Substitutable numbers: 16146766163, 6766163, 6763277
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel supply system

The presented fuel pump operates within the fuel supply system of the M57N2 diesel engines used in the BMW X3 E83, responsible for transporting fuel from the tank to the subsequent components of the system. A properly selected pump ensures:

• stable supply pressure across the entire engine load range,
• smooth engine operation during startup and while driving,
• proper interaction with fuel level sensors and the engine control unit (ECU),
• reduced risk of system aeration and power drops.

Thanks to its factory-standard design, this component is perfectly matched to the stock fuel system, which facilitates installation and subsequent diagnostics.

Advantages of using an original BMW pump

Using an original BMW fuel pump in the X3 E83 model helps maintain the integrity of the entire powertrain. Factory geometry and operating parameters translate into predictable engine behavior and correct interaction with the existing electrical harness and control modules. This solution is particularly beneficial for:

• repairs following a fuel system failure,
• resolving issues with difficult starting or engine stalling,
• restoring the stock configuration after previous modifications.

The used OEM component is a good alternative to aftermarket replacements when you want to maintain the original operating characteristics and compatibility with the factory ECU software.

Condition, verification, and installation

The fuel pump comes from vehicle dismantling and has the status of a used original part, which in practice means it retains the factory design and connectors specific to the BMW X3 E83. Before installation, a standard workshop procedure is recommended, including checking the system for leaks, inspecting the condition of fuel lines, and verifying the correct operation of the fuel level sensor if integrated with the module.

Due to its OEM design, installation is similar to a plug-and-play process – the pump is prepared to work with the stock fuel and electrical systems without the need for harness modifications or adapters. Proper seating in the tank and correct system bleeding are crucial for trouble-free startup after replacement.

Integration with electronics and selection of used components

The fuel supply system in modern BMW diesels works closely with the vehicle's electronics, which is why the selection of the correct fuel pump is important not only mechanically but also in terms of software. When dealing with used components, it is worth paying attention to compatibility with the engine version and equipment configuration. If you want to better understand how to safely use used electronic components in a car, select them for compatibility, and diagnose potential problems, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the fuel supply system in a BMW

If you are planning a comprehensive repair or upgrade of the fuel supply area in your BMW and need other elements from the same group, such as additional pump modules, integrated fuel level sensors, or complete tank inserts, check out the available parts in the BMW Fuel pumps and level sensors category.