Audi A6 C8 A7 4K Fuel Pump Tank Unit 3.0 TFSI 4K0201317B

Audi A6 C8 A7 4K Fuel Pump Tank Unit 3.0 TFSI is an original fuel system component designed for gasoline engines, engineered by Audi to ensure stable fuel pressure and precise integration with the vehicle's electronics. This complete tank unit is responsible for reliable fuel delivery and communication with level sensors, which directly impacts engine performance and operational safety. Thanks to its factory OEM design, it is the right choice for professional repairs or replacement of fuel system components.

Specifications and technical data

• SKU: 4K0201317B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0201317B
• Substitutable numbers: 4K0201317B, 4K0 201 317 B, 4K0919087 P, 4K0 919 087 P
• Fuel type: Petrol
• Part type: Fuel Pump
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described fuel pump unit operates within the tank and is a key component responsible for supplying the gasoline engine with properly filtered fuel at the correct operating pressure. In premium vehicles such as the Audi A6 C8 and A7 4K with the 3.0 TFSI engine, the stability of supply parameters is crucial for performance, fuel consumption, and the correct operation of OBD diagnostic systems.

As an element from the Fuel pumps and level sensors category, the module works with the vehicle's electrical installation and engine control system, ensuring smooth starting, steady idling, and proper response to load. A correctly selected tank pump reduces the risk of pressure drops, jerking during acceleration, and errors related to the air-fuel mixture.

Module construction and technical aspects

The fuel pump unit mounted in the tank combines several functions in one housing: fuel suction, pre-filtering, maintaining the appropriate level in the working chamber, and communication with fuel level sensors. The design is optimized for operation in a gasoline environment, taking into account the material resistance to long-term contact with fuel and additives.

The original Audi solution ensures:

• precise fit to the fuel tank in the specific body model,
• correct positioning of ports and electrical connectors,
• compatibility with factory engine control and fuel level gauge,
• maintenance of factory flow and operating pressure parameters.

Benefits of using an original Audi unit

Using a factory tank pump in a gasoline engine translates into a number of practical operational benefits. Stable fuel supply reduces the risk of overheating fuel injection system components, supports smooth operation across the entire rev range, and facilitates computer diagnostics, as operating parameters remain within the tolerances specified by the manufacturer.

Compared to aftermarket replacements, the original Audi unit allows for maintaining the structural consistency of the fuel system, which is especially important in modern gasoline engines with direct injection. Correct geometric and electrical fitment shortens installation time, reduces the risk of leaks, and prevents issues with module communication with the vehicle's electronics.

Condition, selection, and installation

The item is sourced from disassembly and is intended for users and workshops looking for original fuel system components for Audi, maintaining a reasonable balance between cost and quality. When selecting, it is recommended to verify compatibility by the OEM number and compare the module design with the one currently used in the vehicle, which minimizes the risk of purchasing errors.

Professional installation of the tank pump requires maintaining cleanliness around the tank, checking the condition of seals, and correctly connecting fuel lines and the electrical harness. A properly installed unit restores the factory parameters of the fuel system, which is particularly important after experiencing symptoms such as difficult starting, power loss, or unstable idle.

Technical support and additional materials

To better understand the role of this type of module in the entire fuel system, it is worth checking out the guide discussing diagnostics, selection by part numbers, and operating principles. Detailed information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which describes, among other things, typical signs of wear and good service practices.

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 pump modules, level sensors, or other tank components, check the available parts in the Audi fuel pumps and level sensors category.