Fuel Tank Pump Audi TT 8J A3 8P 2.0 TFSI Petrol Sender Delivery Unit 1K0919051AQ

Fuel Tank Pump Audi TT 8J A3 8P 2.0 TFSI Petrol Sender Delivery Unit is an original component from the Fuel pumps and level sensors group, designed for petrol engine fuel supply systems. This used OEM part allows for maintaining the factory performance parameters of the power unit, ensuring stable fuel delivery and proper cooperation with the vehicle's electronics.

Specifications and technical data

• SKU: 1K0919051AQ
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0919051AQ
• Substitutable numbers: 1K0919051AQ, 1K0 919 051 AQ
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel supply system

The presented fuel tank pump operates in petrol systems, responsible for transporting fuel from the tank to the fuel rail and maintaining the appropriate operating pressure. In vehicles with a 2.0 TFSI engine, a properly functioning pump is crucial for the stable operation of direct injection, smooth acceleration, and limiting power drops under higher loads.

Thanks to a design consistent with Audi's factory standards, this component works with the fuel level sensor and the engine control system, which translates into precise readings on the instrument cluster and the correct response of the controller to load changes. Replicating the original operating characteristics is particularly important in turbocharged units, where the fuel supply system operates across a wide range of loads.

Benefits of using an original fuel pump

Using an original fuel tank pump in an Audi TT 8J or A3 8P with a 2.0 TFSI engine allows for maintaining factory control logic and flow parameters. In practice, this means:

• stable engine starting when cold and warm,
• smooth idling without unwanted fluctuations in RPM,
• correct fuel dosing during dynamic acceleration,
• reduced risk of air entering the system at low fuel levels.

Choosing a used OEM component is often a cost-effective solution while maintaining factory compatibility with the vehicle's electrical and mechanical installation. This is especially important in modern TFSI units, where the fuel supply system is precisely tuned to the engine control unit software.

Integration with the fuel level measurement system

The fuel tank pump in this configuration belongs to the Fuel pumps and level sensors group, which means it works with the float and sensor responsible for transmitting information about the fuel quantity to the instrument cluster. A correctly selected component helps avoid erroneous readings, sudden drops of the gauge needle, or error messages in the onboard system.

Thanks to the preservation of the original geometry and mounting points, installation in the fuel tank proceeds in an orderly manner, without the need for system modifications. Structural consistency with the factory system reduces the risk of leaks and problems with fuel suction at different tank fill levels.

Selection, installation, and technical aspects

When selecting a pump for an Audi TT 8J or A3 8P with a 2.0 TFSI engine, it is crucial to match it to the specific engine version and fuel type. In this case, we are dealing with a petrol system, which determines the operating characteristics, material resistance to petrol, and the way it interacts with the high-pressure part of the fuel system on the engine.

During installation, it is worth paying attention to:

• proper seating of the module in the fuel tank,
• tightness of the seals at the mounting flange,
• correct connection of fuel lines and electrical wiring,
• verification of the fuel level sensor operation after the first start-up.

Professional installation allows you to fully utilize the potential of the factory Audi solution and reduce the risk of repeated interference with the fuel supply system.

Technical support and additional resources

In case of doubts regarding the selection of a used component for a specific vehicle configuration, it is worth using educational materials regarding electronics and engine accessories. Practical tips on selection by OEM numbers, compatibility, and installation can be found in the Global Parts guide: 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 supply area in your Audi and need other components from the same group, such as pump modules, assemblies with level sensors, or complete tank inserts, check the available parts in the Audi fuel pumps and level sensors category.