Audi A4 B8 2.0 TDI Diesel Fuel Pump Tank Sender Unit 8K0919050J

Audi A4 B8 2.0 TDI Diesel Fuel Pump Tank Sender Unit is an original fuel system component designed for installation inside the fuel tank. This component from the Fuel pumps and level sensors category is responsible for both stable fuel delivery to the injection system and precise fuel level readings on the instrument cluster, which directly impacts driving comfort and safety.

Specifications and technical data

• SKU: 8K0919050J
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0919050J
• Substitutable numbers: 8K0919050J, 8K0 919 050 J
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented unit is designed to work with a diesel engine, which is why its construction is adapted to the operating parameters of a Diesel fuel system. The pump and fuel level float assembly is responsible for:

• maintaining the appropriate supply pressure at the injection system inlet,
• stable fuel suction from the tank at various fill levels,
• transmitting information about the fuel quantity to the instrument cluster,
• reducing the risk of air entering the system during dynamic driving.

Thanks to this, the fuel system in the Audi remains more resistant to fluctuations in fuel levels, and the driver receives a clear and predictable reading from the gauge.

Benefits of using an original Audi fuel pump

Using an original Audi component allows you to maintain the factory operating parameters of the fuel system. Key advantages include:

• precise geometric fit to the fuel tank and mounting basket,
• compatibility with the vehicle's electrical installation and control systems,
• proper cooperation with the factory fuel level gauge,
• maintaining the flow characteristics intended for the 2.0 TDI unit.

Choosing this solution reduces the risk of starting problems, power drops resulting from insufficient fuel supply, and incorrect fuel level readings, which is particularly important for daily vehicle operation.

Characteristics of the used component

The offered component is a used part, which in practice means it comes from vehicle dismantling and has been verified for further serviceability. This type of solution is often chosen as a reasonable compromise between cost and functionality, especially in the case of cars that are several or more years old.

When selecting a used fuel pump with a level sensor, it is worth paying attention to compatibility with the engine version and fuel type. A properly selected element allows for installation without modifying the wiring, which shortens service time and reduces the risk of subsequent leaks or electrical problems.

Professional selection and installation

To ensure the proper operation of the fuel system, installation in a specialized workshop is recommended, which will ensure:

• correct seating of the module in the fuel tank,
• checking the tightness of supply and return lines,
• verifying the accuracy of fuel level readings after installation,
• checking for any errors in the engine control unit after the first start-up.

This approach minimizes the risk of having to remove the tank again and allows for the quick restoration of full functionality of the fuel system in the Audi A4 B8 2.0 TDI.

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

When choosing used fuel system components and control electronics, it is worth following proven diagnostic procedures and selecting components according to the manufacturer's specifications – you can find practical tips and examples in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.