Audi S4 B6 4.2 V8 Petrol Fuel Injectors Injection Rail Line Pipe 078133681BA

The Audi S4 B6 4.2 V8 Petrol Fuel Rail with Injectors is a fuel system component designed for the V8 petrol engine in the B6 generation S4 model. A complete fuel rail with injectors ensures proper fuel delivery to the cylinders, which translates to stable engine operation and accurate throttle response.

Specifications and technical data

• SKU: 078133681BA
• Mark: Audi
• Condition: Used
• OEM Part Number: 078133681BA
• Substitutable numbers: 078133681BA, 078 133 681 BA
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Technical Characteristics

The fuel rail with petrol injectors has been specifically designed for the 4.2 V8 engine in the Audi S4 B6. The injectors used work with the petrol fuel supply system, ensuring the correct pressure and precise fuel metering across the entire RPM range.

This component belongs to the injector nozzles group, meaning it is responsible for a crucial stage of preparing the fuel-air mixture. A correctly selected fuel rail with injectors directly impacts:

• stable engine operation at idle and under load,
• proper petrol combustion and the smooth running of the V8 unit,
• acceleration response and smooth power delivery.

Benefits of Using an Original Fuel Rail

For high-performance engines like the 4.2 V8, using a correctly matched fuel rail with a set of injectors is important for both performance and engine durability. This component allows for:

• maintaining factory operating parameters of the petrol fuel supply system,
• reducing the risk of uneven engine operation caused by incorrect fuel metering,
• easier diagnosis of potential injection-related faults by maintaining compatibility with the factory configuration.

A used Audi fuel rail is a solution that allows for restoring the fuel system's efficiency while maintaining a favorable cost-to-quality ratio.

Practical Application in Servicing

A complete fuel rail with petrol injectors is particularly useful for:

• fuel injection system repairs when several injectors show incorrect operation,
• engine overhauls when replacing components responsible for fuel delivery is recommended,
• comparative diagnostics when a functional set is needed to rule out electrical system or control unit faults.

If you are experiencing injection problems, it is also worth consulting educational material on diagnostics – although it concerns diesel engines, it well describes the general principles of injector operation and typical signs of wear. Details can be found in the article diesel injector faults – symptoms, consequences, and diagnostics.

Audi Injector Nozzles – Selection and Offer

When selecting petrol fuel system components for an Audi, it is crucial to ensure compatibility with the specific engine version and model generation. Audi injector nozzles should be selected considering the engine's operating parameters and the vehicle's intended use (daily driving, sport, track use).

If you are looking for other Audi injector nozzles for your car, check out our category: Audi injector nozzles. This will allow you to easily compare available solutions and choose the component that best fits your specific engine configuration.

Summary

The Audi S4 B6 4.2 V8 Petrol Fuel Rail with Injectors is a practical solution for users who want to restore proper fuel system operation in their V8 petrol engine. Using a complete fuel rail with injectors simplifies servicing, reduces repair time, and helps maintain stable engine operating parameters, which is important for both engine performance and durability.