Audi A4 B9 2.0 TDI Diesel In Tank Fuel Pump Sender Unit 8W0919088H

Audi A4 B9 2.0 TDI Diesel In Tank Fuel Pump Sender Unit is an original component from the Fuel pumps and level sensors group, designed for the diesel engine fuel supply system in the Audi A4 B9 generation. It ensures stable delivery of diesel fuel to the injection system, which translates into smooth operation of the 2.0 TDI unit and proper communication with the control electronics.

Specifications and technical data

• SKU: 8W0919088H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0919088H
• Substitutable numbers: 8W0919088H, 8W0 919 088 H
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The presented fuel pump is a component of the Diesel engine fuel supply system, responsible for transporting fuel from the tank to the other components of the injection system. In combination with the fuel level sensor (if integrated in the specific vehicle configuration), it enables precise fuel level readings and stable engine supply under various load conditions.

Selecting parts based on the OEM number and interchangeable numbers allows for maintaining compliance with Audi's factory specifications, which is particularly important in modern diesel units where the fuel system operates under high pressure and is sensitive to parameter deviations.

Benefits of using an original Audi fuel pump

Using a fuel pump dedicated to the Audi A4 B9 2.0 TDI allows for maintaining the consistency of the entire fuel supply system with the vehicle manufacturer's specifications. The appropriate performance characteristics and compatibility with the control electronics reduce the risk of starting problems, power loss, or uneven engine operation.

Key advantages of using this pump include:

• maintaining factory fuel system operating parameters,
• proper cooperation with the fuel level sensor and dashboard indicators,
• reducing the risk of diagnostic errors associated with improperly selected aftermarket replacements,
• easier future diagnostics due to compliance with Audi service documentation.

Installation and operational characteristics

The fuel pump for the Audi A4 B9 2.0 TDI is designed for installation in the factory location provided by the vehicle manufacturer. This allows for maintaining the original routing of fuel lines and proper positioning of the electrical harness, which facilitates service and reduces the risk of leaks.

The component comes from the Fuel pumps and level sensors category, meaning it has been designed to operate in a Diesel fuel environment, taking into account appropriate material resistance to diesel fuel and typical operating conditions in modern diesel units.

Selection by part numbers and technical support

When selecting a fuel pump for the Audi A4 B9 2.0 TDI, it is crucial to compare the OEM number and interchangeable numbers with the vehicle documentation or the reading from the existing part. This approach minimizes the risk of purchasing an incompatible component and ensures full compatibility with the fuel system and engine control unit.

If you would like to deepen your knowledge regarding the diagnostics and operation of fuel supply systems in diesel engines, it is worth reading an article describing the operation of injectors, pumps, and the fuel tank – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding the fuel system in your Audi

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 additional pumps, supply modules, or fuel level sensors, check out the available parts in the Audi fuel pumps and level sensors category.