Intended Use and Compatibility

The presented fuel injector for B47 Diesel engine has been designed for diesel units installed in BMW F20/F21 (118d) and F30/F31 (318d) LCI versions. As a component from the Injector Nozzles category, it works with the common rail system, responsible for precisely delivering fuel to the combustion chamber at the right time and under the correct pressure.

By maintaining the factory spray pattern geometry and matching the B47 engine characteristics, the injector supports proper performance, smooth idling, and reduced smoke under load.

Technical Characteristics and Role in Diesel Systems

As a component designed for Diesel engines, the injector operates under high pressure and temperature conditions, hence its construction is optimized for load resistance and fuel delivery repeatability. A properly selected injector nozzle influences:

stable mixture combustion across the entire RPM range,

maintaining the correct power and torque of the B47 engine,

reducing fuel consumption while preserving factory operating parameters,

lowering exhaust emissions due to proper diesel fuel atomization.

Selecting the correct injector nozzle is crucial for the durability of the engine, the operation of the particulate filter, and the overall reliability of the fuel system.

Condition, Origin, and Benefits of Using OEM Parts

The offered item is an original BMW injector from the OEM group, sourced from disassembly. A used original part retains its factory design parameters, which facilitates installation and ensures proper fitment with the common rail system and engine head. In practice, this means:

secure integration with the fuel system without the need for modifications,

retention of the factory injection characteristics as intended by the manufacturer,

favorable cost-to-quality ratio compared to aftermarket replacements of unknown origin.

Choosing an original injector nozzle is particularly important in modern diesel engines, where operating tolerances are very narrow, and incorrect fuel metering can lead to accelerated engine wear.

Operation, Diagnostics, and Technical Support

When replacing an injector in a B47 engine, it is recommended to perform computer diagnostics and verify injector correction parameters to confirm the proper operation of the entire system. It is also worth consulting educational material describing typical symptoms and consequences of wear for this type of component – the article “Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails” discusses these in detail, helping to better understand the importance of functional injector nozzles in a diesel engine.

Alternative BMW Injector Nozzles and Fuel System Development

If you are looking for other BMW injector nozzles for different engine variants or models of this brand, check the available assortment in the BMW injector nozzles category. This will allow you to select components precisely matched to the specific engine number and vehicle generation, making it easier to maintain the integrity of the entire fuel system.

Summary

BMW F20 F21 F30 F31 LCI 118d 318d B47 Diesel Fuel Injector 8514146 is a functional, original injector nozzle designed for the modern B47 diesel engine. It ensures proper diesel fuel metering, supports stable engine operation, and helps maintain combustion parameters at the level intended by the manufacturer. It is a sensible choice for users who expect a technically sound solution while maintaining compatibility with the factory BMW fuel system.

BMW F20 F21 F30 F31 LCI 118d 318d B47 Diesel Fuel Injector 8514146

Specifications and technical data