Audi A4 B7 Petrol Fuel Pump Tank Sender Pump Unit 8E0919051AK

Audi A4 B7 Petrol Fuel Pump Tank Sender Pump Unit is a component from the Fuel pumps and level sensors group, designed for petrol engine fuel systems in Audi models. It is responsible for the stable delivery of fuel to the fuel rail and works in conjunction with the fuel level measurement system, which translates into proper engine operation and reliable readings on the instrument cluster.

Specifications and technical data

• SKU: 8E0919051AK
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0919051AK
• Substitutable numbers: 8E0919051AK, 8E0 919 051 AK
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented pump is structurally matched to the fuel tank architecture of the Audi A4 B7 generation with a petrol engine. It is responsible for generating the appropriate operating pressure in the system, ensuring even fuel supply to the injectors across the entire load range. The integrated mounting module allows for correct seating in the tank basket and cooperation with the fuel level sensor, which is crucial for the proper operation of the gauge on the dashboard.

Benefits of using an original Audi pump

Using a pump sourced from an Audi allows you to maintain the factory operating parameters of the fuel system. This means:

• stable fuel supply to the petrol engine across the full RPM range,
• proper cooperation with factory control electronics,
• correct geometric fit to the fuel tank,
• preservation of the original fuel system operating characteristics.

Thanks to this, you reduce the risk of starting problems, power drops, or unstable idle speeds, which often appear with components of uncertain origin. Choosing an original Audi solution also means a lower risk of leaks and improper mounting in the tank.

Technical characteristics and compatibility

The pump has been designed to work with petrol-based fuel systems, in accordance with the Fuel type: Petrol parameter. The module design takes into account the pressure and flow requirements typical for Audi A4 B7 petrol units, which allows for maintaining the correct pressure values on the fuel rail and adequate performance during dynamic driving.

The component should always be selected based on the OEM part number and interchangeable numbers visible in the technical specification, as well as based on vehicle data (model, production year, engine capacity, and type). Such an approach minimizes the risk of installing an incompatible module and facilitates subsequent diagnostics of potential faults.

Condition, verification, and preparation for installation

The pump comes from the secondary market, which allows for reducing service costs while maintaining the original Audi design. Before installation, a standard workshop procedure is recommended: checking electrical connectors, fuel lines, seals, and the condition of the mounting basket in the tank. A correctly installed module ensures system tightness, proper cooling of the pump by the fuel, and correct operation of the level sensor.

To avoid starting problems after replacement, it is worth bleeding the fuel system according to the service procedure and verifying fuel pressure parameters while the engine is running. Such a check allows you to quickly confirm that the newly installed pump is operating within the assumed range.

Technical support and additional materials

When selecting components from the fuel system and control electronics group, a guide on used modules and sensors may be helpful, which discusses, among other things, selection by OEM numbers, compatibility issues, and practical installation tips – details can be found in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

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