Audi A4 B9 A5 F5 A6 C8 Fuel Pressure Injector Pipe Hose Line SET 2.0 TDI

Audi A4 B9 A5 F5 A6 C8 Fuel Pressure Injector Pipe Hose Line SET 2.0 TDI is an original component from the Lines, hoses and pipes category, designed for the fuel supply system in modern Audi models. The set ensures stable fuel delivery under high pressure, which translates into smooth engine operation and safe vehicle performance.

Specifications and technical data

• SKU: 05L130321B
• Mark: Audi
• Condition: Used
• OEM Part Number: 05L130321B
• Substitutable numbers: 05L130321B, 05L 130 321 B, 05L130304, 05L 130 304, 05L130303, 05L 130 303, 05L130302A, 05L 130 302 A, 05L130301, 05L 130 301
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The fuel pressure pipe set is responsible for precisely delivering fuel from the high-pressure system to the engine's actuators. In Audi A4 B9, A5 F5, and A6 C8 vehicles, a correctly selected set of pipes is crucial for maintaining the proper operating pressure, stable fuel dosage, and the correct operation of the entire injection system.

The original Audi branding ensures the preservation of factory pipe geometry, proper routing in the engine bay, and compatibility with the mounts and connectors used in these models. As a result, installation is predictable, and the risk of leaks or material stress is minimized.

Set construction and benefits of use

The set includes pipes responsible for transporting fuel under high pressure, designed to operate in demanding thermal and mechanical conditions. The design of the pipes is adapted to the specific layout of the engines used in the Audi A4 B9, A5 F5, and A6 C8, which allows for maintaining proper routing and clearances from heat-generating components.

Using the original fuel pressure pipe set offers a number of benefits:

• maintenance of factory fuel system operating parameters,
• reduction of the risk of leaks and pressure drops,
• proper fitment to standard brackets and mounts,
• consistency with other Audi fuel system components.

Component condition and service application

The product is in the Lines, hoses and pipes category and is intended primarily for service applications – as a replacement for factory-installed pipes in Audi A4 B9, A5 F5, and A6 C8 vehicles. Replacing the set of pipes is particularly recommended in situations where there are symptoms of fuel pressure drops, starting problems, uneven engine operation, or visible signs of corrosion or mechanical damage on existing pipes.

By using a complete set, it is possible to simultaneously replace all key sections of the pressure pipes, which facilitates diagnostics and minimizes the risk of leaving weakened sections in the fuel installation.

Part selection and system integration

The item has a dedicated OEM part number and associated interchangeable numbers, which facilitates unambiguous identification in Audi service catalogs and parts selection systems. When matching to a specific vehicle, it is worth verifying compatibility with the VIN and engine configuration to ensure full compatibility with the fuel system.

A properly selected fuel pressure pipe set ensures consistency with the factory operating parameters of the high-pressure pump, fuel rail, and injectors, which has a direct impact on the engine's refinement and durability.

Support with selection and additional information

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other components from the same group, such as return lines, flexible fuel hoses, or rigid supply pipes, check the available parts in the Audi lines, hoses and pipes category.

When choosing used power supply and control system components, it is worth following proven sources and specialist recommendations – practical tips on choosing electronics and components from the secondary market can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.