BMW 1 3 5 Series E60N E81 E82 E87N E88 E90 E90N High-pressure Rail Fuel Petrol

The BMW E60N E81 E90 E91 Fuel Rail N43 Petrol is an original component of the petrol engine fuel system, designed for units from the N43 family. It ensures stable fuel distribution to the injectors, which translates to predictable engine operation and proper response to load.

Specifications and technical data

• SKU: 7562474
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 13537562474
• Substitutable numbers: 13537562474, 7562474
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Role in the Fuel System

The fuel rail in the N43 engine plays a crucial role in the precise petrol supply to all cylinders. It is responsible for evenly distributing fuel to the injector nozzles, maintaining the correct working pressure, and ensuring stable operation of the entire injection system.

In BMW vehicles of the E60N, E81, E90, and E91 series, a correctly selected fuel rail is essential for:

• maintaining smooth engine operation across the full RPM range,
• reducing vibrations and jerking during acceleration,
• delivering the correct fuel dosage under various load conditions,
• stable combustion parameters, which contributes to meeting emission standards.

Construction and Compatibility with N43 Engine

The rail is specifically designed for N43 petrol units, ensuring it retains factory mounting points and geometry matched to the engine's cylinder head and accessories. This facilitates installation and allows for the preservation of original fuel line and electrical harness routing.

The component works with a petrol injection system, meaning it is adapted to the pressure and flow characteristics typical for this type of fuel. The design of the internal channels promotes fuel pressure stabilization along the entire length of the rail, which is particularly important during dynamic engine load changes.

Benefits of Using an Original Fuel Rail

Using a fuel rail dedicated to BMW with an N43 engine allows for the preservation of operating parameters as intended by the vehicle manufacturer. In practice, this means:

• improved engine running smoothness compared to non-original or incompatible parts,
• compatibility with the factory engine control unit, simplifying diagnostics and calibration,
• reduced risk of leaks at the injector nozzle connections,
• maintaining predictable vehicle behavior during acceleration and under load.

This component, from the Injector Nozzles category, is a vital link in the entire system, so its correct selection directly impacts the durability of injectors and other fuel system components.

Condition and Service Application

The offered fuel rail is a used part, making it an attractive option for an economical fuel system repair in BMW cars with N43 engines. It can be used for replacing a damaged rail or during a comprehensive injector system overhaul when restoring proper fuel distribution to the nozzles is necessary.

Selecting a rail that matches the engine unit and body generation helps reduce installation time and avoid compatibility issues, which is particularly important in modern petrol engines with complex control electronics.

Technical Support and Additional Materials

When diagnosing fuel system problems, it is advisable to consult educational materials regarding the symptoms and consequences of faulty injector operation. Our guide might be helpful: diesel injector faults – symptoms, consequences, and diagnostics, which, although it concerns diesel units, discusses universal issues related to injector performance analysis and symptom interpretation on a vehicle.

If you are looking for other parts from the BMW Injector Nozzles category for your car, check out the BMW Injector Nozzles available in our store to select components that are compatible with your engine's fuel system.