Audi RS3 8V Fuel Injection Rail Line Pipe 2.5 TFSI Petrol 07K133681B

The Audi RS3 8V 2.5 TFSI Petrol Fuel Rail is an original fuel system component designed for the 2.5 TFSI petrol engine in the Audi RS3 8V model. The fuel rail ensures stable injector supply, which translates to predictable engine operation and proper combustion parameters.

Specifications and technical data

• SKU: 07K133681B-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 07K133681B
• Substitutable numbers: 07K133681B, 07K 133 681 B, 07K201BA, 07K 201 BA
• Fuel type: Petrol
• Part type: Fuel Injector
• Category: Fuel Injectors

Purpose and Role in the Fuel System

The fuel rail in the 2.5 TFSI engine is responsible for the even distribution of fuel to individual injectors, maintaining the correct working pressure throughout the system. In high-performance units like the RS3 8V, fuel supply stability is crucial for maintaining performance, smooth operation, and the engine's thermal safety.

Using a component from the Audi group allows for the preservation of factory flow parameters and injector system characteristics, which is particularly important during dynamic driving and with stock engine control unit calibration.

Construction and Technical Fitment

The fuel rail has been designed as part of the fuel injection system for petrol engines, taking into account the specific requirements of the 2.5 TFSI unit. The construction ensures:

• precise fuel delivery to each injector,
• adequate rigidity of the component under high working pressure,
• factory mounting points to the cylinder head and engine ancillaries.

This makes the installation of the rail predictable, and the risk of leaks, when installed correctly, remains limited.

Condition, Application, and Benefits of Replacement

The offered fuel rail comes from the injector nozzles category, meaning it is a component that directly interacts with petrol injectors. Replacing a worn or damaged fuel rail with a functional part allows for:

• stabilizing engine operation across the full range of loads,
• reducing the risk of power loss resulting from fuel supply issues,
• limiting the possibility of leaks within the fuel injection system.

Before installation, it is recommended to verify the tightness of the entire system and check the condition of the injectors to fully utilize the potential of the newly installed rail.

Part Selection by Numbers and Compatibility with the 2.5 TFSI Engine

The rail is designed for petrol fuel systems and should therefore only be used in units adapted for this type of fuel. When selecting a part, it is advisable to use the part number and interchangeable numbers to confirm full compatibility with the specific engine version and vehicle year.

If you want to gain a broader understanding of the specifics of Audi's five-cylinder engine and the principles of selecting original components, the article: Audi's Five-Cylinder Engine and Selecting Original Parts may be helpful. It discusses models equipped with this unit and provides practical tips for identifying parts by their numbers.

More Audi Injector System Components and Technical Knowledge

If you are looking for other Audi injector nozzles for your car, check out the offer in the Audi injector nozzles category, where you will find a wide selection of fuel system components for various models of this brand.

For users interested in diagnosing and identifying symptoms of fuel injection problems, the guide Diesel Injector Faults – Symptoms, Consequences, and Diagnostics will be useful. Although it concerns diesel engines, the principles of analyzing injector operation, interpreting symptoms, and diagnostic approaches described there can also be helpful when assessing the condition of the fuel injection system in petrol engines.