Audi RSQ3 F3 In Tank Fuel Pump Sender Unit 2.5 TFSI 5QF919673AK

Audi RSQ3 F3 In Tank Fuel Pump Sender Unit 2.5 TFSI is an original fuel system component designed to operate directly within the fuel tank of the sporty RSQ3 F3 version with a 2.5 TFSI engine. The integrated fuel level sensor ensures precise readings, while the OEM design guarantees a perfect fit for the factory Audi installation. This is the ideal solution for users who expect stable engine performance and seamless integration with the vehicle's electronics.

Specifications and technical data

• SKU: 5QF919673AK
• Mark: Audi
• Condition: Used
• OEM Part Number: 5QF919673AK
• Substitutable numbers: 5QF919673AK, 5QF 919 673 AK, A2C92542406
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The in-tank fuel pump with a sender unit is responsible for continuously delivering fuel at the correct pressure to the 2.5 TFSI engine's injection system. Simultaneously, the integrated level sensor transmits information about the fuel quantity to the engine control unit and instrument cluster, ensuring the dashboard gauge and onboard systems function correctly.

For high-performance units like the 2.5 TFSI in the RSQ3 F3, a functional in-tank pump is crucial for maintaining stable engine operating parameters, proper starting, and consistent performance during dynamic driving.

Construction and integration with the Audi RSQ3 F3 system

This component belongs to the Fuel pumps and level sensors group, meaning it combines both power supply and measurement functions in a single housing. The OEM design is prepared for mounting in the factory fuel tank basket, with correctly positioned ports and electrical connectors, facilitating installation in the Audi RSQ3 F3 without the need for modifications.

This solution ensures:

• consistency with the factory wiring harness and engine control unit,
• proper cooperation with the 2.5 TFSI injection system,
• stable operating parameters across the full load range.

Benefits of using an original Audi fuel pump

Using an original in-tank fuel pump with a sender unit in the RSQ3 F3 translates into more reliable fuel system operation compared to generic aftermarket replacements. A component designed by the vehicle manufacturer is tailored to the characteristics of the 2.5 TFSI engine, which reduces the risk of fuel pressure issues, hesitation during acceleration, or errors related to fuel level readings.

This solution is particularly recommended when:

• replacing a worn pump that manifests as a loss of power or difficult starting,
• performing fuel system repairs after long-term use,
• restoring the car's full performance after mechanical or electronic modifications.

Characteristics of the used product

The presented Audi fuel pump comes from the used original parts segment. These types of components are frequently chosen by informed users who are looking for a compromise between OEM quality and reasonable repair costs. The original design ensures proper fitment and compatibility with factory systems while allowing for cost savings compared to a new part.

Before installation, a standard service procedure is recommended: checking the fuel system, filter condition, and line integrity to fully utilize the potential of the installed pump.

Technical support and part selection by numbers

For components such as fuel pumps and level sensors, correct selection based on catalog numbers and compatibility with specific engine versions and model years is essential. To better understand the principles of selecting used modules and sensors, it is worth reading 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 system area in your Audi and need other elements from the same group, such as pre-pumps, power modules, or fuel level sensors, check the available parts in the Audi fuel pumps and level sensors category.

For users who want to further reduce the environmental footprint of their repairs and better understand the benefits of reusing components, we recommend the article: Eco-driving: discover the benefits of used car parts.