BMW F20 F21 116d ed Diesel N47N 116HP Set Injector Fuel Pump Injection System

The BMW F20 F21 116d ed N47N 116HP Complete Injector Set is a factory system from the injector nozzles category, designed for the N47N diesel engine in BMW 1 Series F20/F21 116d EfficientDynamics models. The set is suitable for 116 HP units, ensuring proper fuel delivery and stable operation of the modern diesel engine.

Specifications and technical data

• SKU: 8577651
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8577651
• Substitutable numbers: 13518577651, 0445010540, 8515058, 13538514166, 0445214278, 13538515060, 0445110103, 8577651, 0 445 010 540, 8514166, 0 445 214 278, 8515060, 0 445 110 103
• Fuel type: Diesel
• Category: Fuel Injectors

Set Purpose and Characteristics

The BMW F20 F21 116d ed N47N 116HP Complete Injector Set has been specifically designed for Diesel fuel systems in compact BMW 1 Series models. It is responsible for precise high-pressure fuel delivery, which is crucial for the engine's smooth operation, performance, and fuel consumption.

As an element from the injector nozzles category, the set works with the common rail system, maintaining the correct fuel spray pattern, opening time, and injection quantity across various engine load ranges.

Construction and Function in a Diesel System

The set includes components responsible for:

• precise fuel metering across the entire RPM range,
• engine operation stabilization at idle and during acceleration,
• maintaining correct common rail pressure,
• optimal diesel fuel atomization in the combustion chamber.

A set configured in this way allows for the preservation of the N47N engine's factory performance parameters, which translates to predictable vehicle behavior, proper throttle response, and reduced smoke under load.

Benefits of Using an Original Injector Set

Choosing the right injector set directly impacts the durability of a diesel engine and operational safety. Using this set in the BMW F20/F21 116d ed N47N ensures, among other things:

• compliance with factory engine characteristics – operating parameters matched to the engine control unit maps,
• even operation of all cylinders – reduced vibrations and uneven cold running,
• better exhaust emission control – proper combustion of the mixture in the diesel engine,
• stable engine starting – especially important in low temperatures.

Thanks to this set, correct fuel supply parameters can be restored to the N47N engine, which is important both after significant mileage and after symptoms of injector system wear appear.

Condition, Fitment, and Application

The offered set comes from the BMW group and is intended for diesel engines. As a used part, it represents a cost-effective solution for users who want to restore the injector system's functionality while maintaining compliance with factory specifications.

Before installation, it is recommended to verify compatibility with the specific vehicle version and consult with a mechanic or diagnostician to ensure proper fitment with the existing fuel system and engine control unit.

Injector System Diagnostics and Prevention

In case of problems with diesel engine operation – such as uneven running, power loss, increased fuel consumption, or smoke – it is worth familiarizing yourself with practical diagnostic tips. Detailed information on this topic can be found in the article “Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails”, which discusses typical symptoms and consequences of a neglected injector system.

BMW Injector Nozzles – Selection and Alternatives

If you are also looking for other solutions from the same category, it is worth checking out other BMW injector nozzles available in our assortment. The full offer can be found at the link: BMW injector nozzles, where you can compare different variants for use in other models and engine versions.

If you are interested in a broader context of using used parts in vehicle servicing, the guide on used car parts – myths and facts may also be helpful, explaining how to make informed choices about used components and what to look for when purchasing them.