Audi A4 B7 Fuel Pump Tank Sender Pump Unit 2.0 Petrol 8E0919051CN

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A4 B7 Fuel Pump Tank Sender Pump Unit 2.0 Petrol is an original fuel system component designed for precise fuel delivery and reliable fuel level measurement in the tank. As part of the Fuel pumps and level sensors group, it ensures stable operation of the petrol engine, correct system pressure, and accurate readings on the instrument cluster. This used OEM component is a sensible choice for professional repairs or replacing a worn-out unit in an Audi.

Specifications and technical data

• SKU: 8E0919051CN
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0919051CN
• Substitutable numbers: 8E0919051CN, 8E0 919 051 CN
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described unit is a complete module mounted in the fuel tank, responsible for:

• pumping petrol from the tank to the fuel rail,
• maintaining stable engine fuel supply under various load conditions,
• continuous fuel level measurement and transmitting the signal to the instrument cluster,
• cooperating with the vehicle's electronics for fuel system diagnostics.

By integrating the pump and level sensor into a single module, the number of connections is reduced, which promotes fuel system reliability and simplifies maintenance.

Compatibility and OEM selection

The module has been designed specifically for Audi petrol engines, which means matched performance characteristics and appropriate geometry of the tank basket. Selecting by OEM number and interchangeable part numbers allows you to verify compatibility with a specific body version and powertrain, minimizing the risk of installation issues. In practice, this means:

• proper seating in the fuel tank,
• correct connection to the electrical installation and fuel lines,
• compatibility of the level sensor signal with the dashboard electronics.

Such matching is particularly important in modern systems, where the precision of fuel pump parameters directly affects engine performance and fuel consumption.

Operating characteristics in a petrol engine

The module is intended for petrol supply systems where stable pressure and adequate fuel flow are required under variable engine loads. In typical operation, it is responsible for:

• ensuring engine start even at low fuel levels,
• maintaining continuous supply during acceleration and high-speed driving,
• proper cooperation with the injection system and engine control unit.

A functional pump and level sensor module helps reduce symptoms such as starting difficulties, engine misfiring, or incorrect fuel level readings, which translates into stable and predictable vehicle operation.

Condition, installation, and service application

The item is offered as a used part, which allows for economical fuel system repair while maintaining OEM specifications. The module is structurally prepared for installation in place of the factory component, using original mounting points and connectors. In practice, this means:

• no need for fuel system modifications,
• preservation of factory routing for lines and harnesses,
• suitability for use within standard service procedures.

For workshops and individual users, this is a solution that allows for restoring full fuel system functionality at controlled costs, while maintaining the original Audi design.

Technical support and additional information

When selecting a fuel pump and level sensor module, it is worth using OEM markings and reference numbers to ensure full compatibility with the specific vehicle configuration. A detailed discussion of fuel system principles, diagnostics, and regeneration can be found in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps to better understand the role of such modules in modern petrol engines.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other elements from the same group, such as in-tank pump modules, fuel level sensors, or complete fuel basket assemblies, check the available parts in the Audi fuel pumps and level sensors category.

Additional tips on reducing vehicle downtime in the workshop and the benefits of the wide availability of used parts can be found in the post: how a wide assortment in one warehouse reduces vehicle downtime at the mechanic, which may be helpful when planning major service work on your Audi.