Audi A4 B8 35 TFSI In Tank Fuel Pump Sender Unit 8W0919087L

Audi A4 B8 35 TFSI In Tank Fuel Pump Sender Unit is an original component from the Fuel pumps and level sensors group, designed for petrol engine supply systems. Using an OEM part allows for maintaining the factory performance parameters of the powertrain, ensuring stable fuel delivery and proper cooperation with the vehicle's electronics.

Specifications and technical data

• SKU: 8W0919087L
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0919087L
• Substitutable numbers: 8W0919087L, 8W0 919 087 L
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel supply system

The fuel pump in the Audi A4 B8 35 TFSI is responsible for precisely delivering petrol from the tank to the injection system at the appropriate operating pressure. A correctly selected component from this group is crucial for:

• stable engine operation across the full load range,
• maintaining the correct air-fuel mixture composition,
• proper operation of engine control systems,
• reducing the risk of power drops and starting issues.

By using an original pump from the same production line for which the fuel system was designed, compatibility with factory engine control unit maps and fuel level sensors is maintained.

Advantages of using an original Audi fuel pump

Choosing a fuel pump from the Audi OEM group translates into a number of practical operational benefits. The most important include:

• Factory fitment – geometry, connections, and operating parameters are consistent with the solutions used in the Audi A4 B8 35 TFSI, which facilitates installation and reduces the need for modifications.
• Consistency with the fuel level sensor system – proper cooperation with the electrical installation and the gauge on the instrument cluster.
• Stable petrol supply – maintaining the correct pressure in the fuel lines promotes even injector operation and reduces the risk of mixture leaning.
• Better service predictability – using a part from the same family as the factory one facilitates diagnostics in case of any potential faults.

Technical characteristics and compatibility

The presented pump belongs to the Fuel pumps and level sensors category and is intended for petrol-powered systems. This means that its construction, materials used, and operating parameters are adapted to the properties of Petrol fuel, including resistance to its components and the required operating pressures.

As an Audi OEM component, the pump was designed to maintain consistency with the factory fuel system architecture, including:

• the fuel basket assembly in the tank,
• supply and return lines,
• the pump control system via the engine module,
• the fuel level sensor integrated into the same working area.

This configuration promotes seamless integration with the existing vehicle installation and the maintenance of the performance parameters specified by the manufacturer.

Component condition and installation aspects

The fuel pump is offered in a used condition, which allows for an economical replacement while maintaining the original manufacturer's specifications. Before installation, a standard service procedure is recommended, including checking the electrical installation, fuel lines, and connection tightness to ensure safe and durable operation.

Due to its factory origin, the installation process is similar to replacing a part with a new OEM unit – maintaining original mounting points and factory connectors. This is a beneficial solution for both workshops and individual users who expect predictable service life and reduced risk of fitment issues.

Fuel system expansion and additional materials

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

When selecting used components for modern fuel supply and engine control systems, it is worth using verified sources of knowledge. Practical tips on choosing and verifying used modules and components that cooperate with vehicle electronics can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which helps to approach the purchase of aftermarket parts consciously.