Audi S5 8T 4.2 Petrol Fuel Injection Injector Rail Line Right O/S 079133316E

Audi S5 8T 4.2 Petrol Fuel Rail Right is an original fuel supply system component from the Other Injector System Parts category, designed for the right side of the engine. The offered component comes from the Audi brand and is the right choice for users seeking factory fitment and stable performance parameters for a 4.2 petrol engine.

Specifications and technical data

• SKU: 079133316E
• Mark: Audi
• Condition: Used
• OEM Part Number: 079133316E
• Substitutable numbers: 079133316E, 079 133 316 E
• Location on the vehicle: Right
• Fuel type: Petrol
• Part type: Fuel Rail (Ramp)
• Category: Additional Fuel Injection Parts

Purpose and Function of the Fuel Rail

In a petrol engine, the fuel rail is responsible for evenly distributing fuel to individual injectors, maintaining proper pressure, and ensuring stable operation of the fuel supply system. For V8 engines, such as the 4.2 in the Audi S5 8T, the use of a dedicated right-side fuel rail is crucial for maintaining the correct injection sequence and proper balance between both cylinder banks.

The presented fuel rail is an OEM component, meaning it retains the factory geometry, fuel channel diameters, and mounting points. This ensures predictable installation, and the injector system can operate according to the vehicle manufacturer's specifications after replacement.

Vehicle Placement and Fitment

The offered fuel rail is designed for the right side of the engine, which is important for routing fuel lines and integrating with engine accessories. Correct placement on the vehicle minimizes stress on connections, reduces the risk of leaks, and facilitates future servicing.

By retaining the original design, the fuel rail works with the factory brackets, supports, and injectors intended for this model. This solution is particularly beneficial for workshops and users who expect predictable installation without the need for fuel system modifications.

Benefits of Using an Original Fuel Rail

Using an original fuel rail in the Audi S5 8T 4.2 Petrol offers a number of practical benefits:

• Factory Fitment – compatibility with the engine and accessory design, without the need for adaptation.
• Stable Injector System Operation – correct fuel distribution to the injectors on the right side of the engine.
• Reduced Risk of Leaks – proper positioning of fuel outlets and connections.
• Diagnostic Support – maintaining the original system architecture facilitates the interpretation of engine control system data.

A component from the Other Injector System Parts category is particularly important in high-performance engines, where precise fuel metering affects performance, running smoothness, and emissions.

Condition, Origin, and Service Application

The fuel rail comes from an Audi vehicle and is offered as a used part, allowing for economical repair while maintaining original specifications. This type of component is often chosen for:

• mechanical damage to the existing fuel rail (cracks, deformations, damaged mounts),
• fuel system leaks on the right side,
• comprehensive overhaul of the injector system in a 4.2 petrol engine.

Thanks to its OEM standard, the fuel rail can be used both as a replacement part in routine repairs and during major engine upgrades where maintaining the original fuel system configuration is crucial.

Technical Support, OEM, and Additional Content

When selecting a fuel rail for a specific Audi S5 8T version, it is worth paying attention to OEM markings and interchangeable part numbers – their compatibility ensures correct fitment for the given engine variant. If in doubt, it is helpful to compare the existing part with the offered component and verify the parameters in the service documentation.

If you are looking for other parts from the Other Injector System Parts category dedicated to this brand, check out the Audi Other Injector System Parts available in our store to select a complete solution for your fuel system.

Before the winter season, it is particularly important to maintain the efficiency of the fuel supply system – you can find more practical tips in the article “Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?”, where we discuss, among other things, the importance of sealing and proper operation of injector system components.

If you are interested in a broader context of using original components, it is also worth reading the material “OEM Quality and Safety Guarantee – Why Used Original Car Parts Are the Best Choice for Your Car?”, which explains why choosing OEM parts is technically and economically beneficial.