Audi S8 D3 5.2 FSI V10 Quattro Fuel Injection Line Pipe Right O/S 07L127501R

The Audi S8 D3 5.2 FSI V10 Quattro right fuel injector line is an original part of the gasoline fuel system, designed for the V10 FSI engine in the sporty Audi S8 D3 sedan. The precisely selected geometry of the line ensures stable fuel delivery to the injectors on the right side of the engine.

Specifications and technical data

• SKU: 07L127501R
• Mark: Audi
• Condition: Used
• OEM Part Number: 07L127501R
• Substitutable numbers: 07L127501R, 07L 127 501 R
• Location on the vehicle: Right
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Function in the Injection System

The right-side fuel injector line operates in close proximity to the fuel rail and injector nozzles, responsible for evenly distributing gasoline under the correct pressure to the cylinders on one side of the V10 engine. A properly selected component of this type is crucial for:

• stable operation of the injection system across the full range of engine loads,
• maintaining the correct air-fuel mixture at the high RPMs characteristic of the 5.2 FSI unit,
• minimizing fuel pressure drops at critical points in the system.

This component works with the gasoline fuel system, which is particularly important in highly tuned engines like the V10 in the Audi S8 D3.

Construction and Fitment for Audi S8 D3 5.2 FSI V10 Quattro

Original Audi origin means adherence to factory geometry, diameters, and mounting points of the line. This ensures:

• seamless integration with the existing fuel system on the right side of the engine,
• correct routing of the line relative to the engine accessories and bodywork,
• maintenance of factory flow parameters required by the FSI injection system.

Such precise fitment reduces the risk of stress, leaks, and improper positioning of the line in the engine bay, which is important for both durability and operational safety.

Operating Characteristics in the Gasoline System

The line is designed to work with a gasoline fuel system, typical for FSI engines. In practice, this means:

• resistance to operating conditions in the high temperatures of the engine bay,
• adaptation to the operating pressures found in direct injection systems,
• stable supply to the injector nozzles on the right side of the V10 engine.

The proper condition of the injector line directly impacts the engine's smoothness, throttle response, and the even load distribution across individual cylinders.

Condition, Verification, and Service Application

This part is a used component, offered as a used Audi fuel injector line. This type of part is often chosen as an economical yet factory-specification-compliant solution for:

• repairs to the injection system on the right side of the engine,
• addressing leaks or mechanical damage to fuel lines,
• restoring the original configuration in vehicles undergoing restoration or modifications.

Before installation, standard checks for leaks and the condition of seals and connections are recommended, in accordance with service procedures for FSI gasoline systems.

Audi Injector Nozzles – Selection and Technical Knowledge

If you are looking for other components in the Audi injector nozzles category, check out the Audi injector nozzles available in our store to select complete fuel system components for your model.

Although the described line works with a gasoline injection system, many diagnostic principles and fault symptoms are similar to those found in diesel engines. It is worth familiarizing yourself with material discussing the symptoms and consequences of injector problems, such as the article on diesel injector faults – symptoms, consequences, and diagnostics, to better understand the importance of a functioning fuel system in modern powertrains.