Audi A4 B8 2.0 TFSI CDNC Petrol Engine Fuel Pump Sender Unit 8K0919051AD

Audi A4 B8 Fuel Pump Gasoline Engine 2.0 TFSI CDNC is a component from the Fuel Pumps and Level Sensors category, designed for gasoline engine fuel systems. The offered part comes from the original Audi line, ensuring proper fitment with the factory fuel system and correct interaction with engine accessories.

Specifications and technical data

• SKU: 8K0919051AD
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0919051AD
• Substitutable numbers: 8K0919051AD, 8K0 919 051 AD, 4F0919133B
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Intended Use and Function in the Fuel System

The fuel pump is responsible for the stable delivery of gasoline to the 2.0 TFSI CDNC engine, maintaining the correct pressure in the fuel system. In conjunction with the fuel level sensor (if integrated in a specific variant), it enables the correct operation of the gauge on the instrument cluster and precise fuel metering by the engine control unit.

This component has been specifically designed for Audi vehicles of the A4 B8 family, which minimizes the risk of mechanical and electrical compatibility issues. This ensures that installation in place of the factory component proceeds predictably and in accordance with the manufacturer's specifications.

Benefits of Using an Original Fuel Pump

Using an original fuel pump in a TFSI gasoline engine translates to:

• correct operating pressure in the fuel system,
• stable engine operation under full load conditions,
• better compatibility with the factory engine control unit and injection maps,
• reduced risk of starting problems and engine stalling.

By maintaining factory design parameters, the pump supports uniform operation of the injection system and correct gasoline dosing under various operating conditions.

Technical Characteristics and Compatibility

The presented component operates in a fuel system based on gasoline fuel, which is crucial when selecting parts for a specific engine version. The appropriate design of the housing, connectors, and electrical terminals allows for installation in the factory fuel basket and connection to the existing wiring harness.

This pump belongs to a group of components for which the manufacturer provides interchangeable numbers, making it easier to select a replacement based on service documentation or parts catalogs. In practice, this means the possibility of verifying compatibility by OEM number and reference numbers, without the need for vehicle system modifications.

Condition, Verification, and Installation

The offered fuel pump is a used component, allowing for economical servicing of the fuel system while maintaining original manufacturer specifications. Before installation, a standard inspection of the vehicle's fuel system is recommended, including the tightness of the lines, the condition of the fuel filter, and the correctness of the electrical supply.

When replacing, pay attention to:

• cleanliness of the fuel tank interior,
• condition of seals and mounting rings,
• correct routing of fuel and electrical lines,
• start-up test and fuel pressure check after installation.

Selection by Numbers and Technical Support

To ensure full compatibility with a specific Audi A4 B8 version, it is recommended to select the fuel pump based on the OEM number, reference numbers, and vehicle data (model, year, engine type). This identification method minimizes the risk of purchasing an incorrect part and speeds up the servicing process.

If you want to better understand the principles of selecting used components for control and measurement systems in cars, the Global Parts guide – Used Car Electronics Onboard – Why Choose Second-Hand ECUs and Sensors? – will be useful, discussing OEM number selection and compatibility issues.

If you need other fuel system components for this brand, including additional modules from the Fuel Pumps and Level Sensors category designed for Audi vehicles, check the available parts in the Audi Fuel Pumps and Level Sensors category.