Fuel Rail BMW E90 LCI F20 F30 Petrol M135i 335i N55 Injector System 7576779

BMW E90 F20 M135i 335i N55 Fuel Rail is an original gasoline fuel system component, designed for N55 engines in sport BMW models. The rail ensures stable fuel supply to the injectors, which translates to predictable engine operation and proper combustion parameters.

Specifications and technical data

• SKU: 7576779
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7576779
• Substitutable numbers: 13537576779, 7576779
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Role in the Fuel System

The presented BMW fuel rail operates within the gasoline engine fuel system, responsible for evenly distributing fuel to individual injector nozzles. A correctly selected rail is crucial for:

• maintaining stable fuel pressure across the entire engine load range,
• precise gasoline dosing by the injectors,
• preserving the smooth operation of the N55 unit in both city and dynamic driving conditions,
• reducing the risk of uneven running and power loss resulting from fuel supply issues.

This component is dedicated to gasoline systems, which is significant in terms of both its construction and its resistance to operating pressure and temperature.

Advantages of Using an Original Fuel Rail

Choosing an original fuel rail for BMW offers specific technical and operational benefits:

• Factory Fitment – The geometry and mounting points correspond to the solutions used in the N55 engine, facilitating installation and eliminating the need for modifications.
• Compatibility with the Injection System – The rail works with factory injector nozzles, maintaining their operating characteristics.
• Stable Operating Parameters – The appropriate design supports maintaining correct fuel pressure, promoting even combustion and predictable throttle response.
• Operational Safety – Using a component that aligns with the manufacturer's design reduces the risk of leaks and improper cylinder fueling.

Product Characteristics and Condition

The offered fuel rail for BMW gasoline engines comes from the used parts segment. This type of component, when properly maintained, retains its functional properties for a long time, as it is not a part that wears out as quickly as, for example, the injectors themselves or the high-pressure pump.

The rail is designed to work with gasoline fuel, which is important when selecting parts for a specific fuel system. The construction ensures adequate rigidity and resistance to the thermal conditions within the engine bay, as well as compatibility with factory mounting points and fuel lines.

Selection and Compatibility in BMW Injection Systems

To correctly select a fuel rail for BMW E90, F20 M135i, and 335i with N55 engines, pay attention to compatibility with the specific engine version and the installed injection system. The original rail is designed for:

• correct placement of injector nozzles relative to the cylinder head and intake manifold,
• appropriate diameter and cross-section of fuel channels, which affects flow and pressure stability,
• compatibility with engine ancillaries such as fuel lines, mounts, and sensors.

In practice, this translates to easier installation, predictable engine behavior after replacement, and reduced risk of errors related to incorrect part selection.

BMW Injector Nozzles – System Expansion and Service

If you are planning a comprehensive fuel system service, it is also worth considering other elements from the BMW injector nozzles category. In such cases, a link to the dedicated category will be helpful, where you will find BMW injector nozzles matched to various models and engine versions of this brand.

Technical Knowledge and Selection of Used Parts

Although the described component works with a gasoline system, many principles of diagnostics and symptoms of injection problems are similar to diesel solutions. To broaden your knowledge of typical injection fault symptoms, it is worth reading the article Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails, which discusses practical aspects of diagnostics and the consequences of neglect.

If you are considering whether to choose a used part or an aftermarket replacement, the material 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket One may also be helpful, outlining specific technical and operational arguments in favor of original components.