BMW E60 E87 E90 118d 325d 525d M47N2 M57N2 Fuel Injector 7794435

BMW E60 E87 E90 118d 325d 525d M47N2 M57N2 Fuel Injector is an original BMW injector nozzle from the diesel system, designed for diesel engines used in popular 1, 3, and 5 Series models. The component comes from the factory fuel supply system, ensuring proper engine operating parameters and stable engine running characteristics.

Specifications and technical data

• SKU: 7794435-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7794435
• Substitutable numbers: 13537794435, 7794435, 13537794555, 7794555
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Compatibility

The presented BMW fuel injector belongs to the Injector Nozzles category and is dedicated to M47N2 and M57N2 diesel engines installed in BMW E60, E87, and E90 models in the 118d, 325d, and 525d versions. Using an original component from the same engine family allows for maintaining factory injection parameters, which translates to correct common rail system operation, even fuel delivery, and predictable performance.

Technical Characteristics of the Injector

The injector operates within a Diesel engine fuel system, where precise high-pressure fuel metering is crucial. The design of the BMW injector nozzle has been developed to:

• ensure stable fuel atomization in the combustion chamber under various engine loads,
• maintain the correct spray pattern for the specific piston type and swirl chamber,
• support even operation of all cylinders, which reduces vibrations and improves engine smoothness,
• minimize fuel consumption while maintaining adequate driving dynamics.

By using an original injector nozzle from the BMW OE range, compliance with the engine control unit's factory parameters, injection maps, and common rail pressures is maintained.

Practical Application in Service

An injector from this series is particularly useful for professional repair of injection systems in BMW models with M47N2 and M57N2 engines, where component consistency is important. In workshop practice, such a component allows for:

• restoring correct fuel doses in cases of hot or cold start issues,
• reducing smoking and uneven idling resulting from uncalibrated or worn injectors,
• minimizing the risk of piston overheating caused by improper fuel atomization,
• maintaining compatibility with factory control strategies without the need for ECU software modifications.

A used component is a good choice when a reasonable repair cost is a priority while maintaining the original manufacturer's specifications.

Benefits of Using an Original BMW Injector Nozzle

Compared to aftermarket alternatives of uncertain origin, an original BMW diesel injector nozzle offers a range of practical advantages:

• factory fit to the cylinder head and combustion chamber – no issues with spray geometry and injection angle,
• compatibility with other system components (high-pressure pump, rail, control unit),
• stable operating parameters over the long term, important for vehicles with high mileage,
• easier diagnostics – reference values and characteristics are known to BMW-specialized workshops.

Diagnostics and Prevention of the Injection System

When replacing an injector, it is worth paying attention to symptoms typical of worn injector nozzles, such as power loss, increased fuel consumption, or uneven engine operation. A detailed discussion of symptoms and potential consequences of neglect can be found in the article: Diesel Injector Failures – How to Recognize Them and What Their Neglect Threatens. This is a practical addition to the knowledge for mechanics and users of diesel-powered vehicles.

BMW Injector Nozzles – Selecting the Right Component

If you are looking for other BMW injector nozzles for different engine versions or models, use the dedicated category: BMW injector nozzles. This will facilitate a quick comparison of available injection components and the selection of the correct component for a specific engine number and vehicle generation.

By choosing this fuel injector for BMW E60, E87, or E90 with M47N2/M57N2 engines, you are opting for an original injection system component that allows for maintaining the factory diesel engine operating parameters and ensures predictable vehicle behavior in daily use.