BMW 3 5 Series E39 E46 Electrical Diesel M57N Fuel Pump 6751867

BMW 3 5 Series E39 E46 Electrical Diesel M57N Fuel Pump is an original fuel system component designed for BMW diesel engines from the M57N family. As part of the Fuel pumps and level sensors group, it ensures stable diesel fuel supply and proper cooperation with engine accessories. Using an OEM component is a sensible choice when servicing advanced diesel units, allowing you to maintain factory performance characteristics.

Specifications and technical data

• SKU: 6751867
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6751867
• Substitutable numbers: 16117165590, 7165590, 16144024378, 4024378, 16146755456, 6755456, 16126751867, 6751867
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented pump is a component of the diesel fuel supply system in BMW 3 Series E46 and 5 Series E39 models with the M57N engine. It is responsible for transporting fuel from the tank and maintaining adequate supply for the subsequent parts of the system, which translates into smooth engine operation, correct starts, and stable performance across the full load range.

As a component dedicated to a diesel engine, the pump is adapted to the operating characteristics of a diesel engine – it takes into account the specific fuel viscosity, operating pressure requirements, and cooperation with control accessories. This ensures consistency with the factory calibration of the engine control unit and other fuel system components.

Benefits of using an original BMW pump

Using an original fuel pump in the M57N diesel supply system helps reduce the risk of problems typical of replacements of uncertain origin. The factory component ensures:

• consistency with the factory fuel system design,
• proper cooperation with sensors and the engine control unit,
• appropriate flow and pressure parameters for the diesel unit,
• maintenance of the refinement and dynamics characteristic of BMW Diesel engines.

For users who expect predictable vehicle behavior after repair, choosing an original pump from the Fuel pumps and level sensors group is a technically safe and economically justified solution in the long term.

Technical characteristics and compatibility

The pump has been designed to work with a diesel fuel supply system, which means full adaptation to Diesel fuel parameters. The design takes into account requirements regarding resistance to pressure, temperature, and long-term operation under variable loads typical of M57N engine usage.

An additional advantage is the presence of a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification of the component according to manufacturer catalogs or the VIN number. This allows for an informed selection of an element compatible with a specific vehicle configuration, minimizing the risk of errors during installation.

Condition, installation, and service application

The offered fuel pump is a used item, sourced from disassembly, which allows for lower repair costs while maintaining the original manufacturer's specifications. This type of solution is often chosen in the case of advanced diesel units, where structural and parametric compliance with the factory system is crucial.

Before installation, a standard service procedure is recommended: verification of the fuel installation, inspection of the condition of lines, the fuel filter, and connection tightness. A correctly selected and installed pump contributes to stable starting, reduction of power drops, and lower risk of air entering the system.

Technical support and additional materials

For users who want to better understand the operation of the fuel system in diesel engines, the selection of components by OEM number, and the principles of proper operation, the following guide article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. It contains practical tips on diagnostics, regeneration, and part selection based on technical documentation.

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 pumps, power modules, or fuel level sensors, check the available parts in the BMW fuel pumps and level sensors category.