Fuel Pump BMW F20 F21 116d ed N47N 116HP High Pressure Injection Pump 8515058

Fuel Pump BMW F20 F21 116d ed N47N 116HP Injection Pump 8515058 is an element from the High-Pressure Fuel Pumps category, designed for BMW 1 Series diesel engines. It enables precise fuel supply to the injection system, ensuring stable fuel pressure in modern diesel engines. This is a solution for users looking for a technically matched component for a specific engine unit.

Specifications and technical data

• SKU: 8577651-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8577651
• Substitutable numbers: 13518577651, 8577651, 13518576515, 8576515, 13518515059, 8515059, 8515058, 0445010540, 63137171008, 7171008
• Fuel type: Diesel
• Category: High Pressure Fuel Pumps

Purpose and Compatibility with BMW Fuel System

The presented high-pressure pump is designed to work with the N47N diesel engine with 116 HP in BMW F20 and F21 models in the 116d EfficientDynamics version. It is responsible for generating the appropriate high pressure in the common rail system, which is crucial for the correct operation of injectors and even fuel combustion. Thanks to its dedicated design for this engine unit, the pump works with the factory engine control and injection system without the need for installation modifications.

Technical Characteristics and Role in Diesel Engines

As a component of the Diesel fuel supply system, the high-pressure pump is responsible for transferring fuel from the low-pressure side to the injection rail, maintaining stable operating parameters across a wide range of loads. The design adapted for common rail engines ensures:

• precise fuel delivery to injectors at varying engine speeds,
• appropriate pressure characteristics for the N47N unit,
• compatibility with factory sensors and fuel system control valves.

This allows the engine to maintain proper running smoothness, and the control unit to accurately manage fuel dosage across the entire speed range.

Condition, Origin, and Benefits of Use

The pump comes from the BMW offering and is a used part, allowing for economical repair of the fuel system while maintaining the original manufacturer's specifications. Using an original component from the same family of parts as those factory-fitted in the BMW F20/F21 116d reduces the risk of compatibility issues, simplifies installation, and facilitates subsequent diagnostics. This solution is particularly beneficial when replacing a damaged injection pump due to failure or wear and tear.

Why Choose a High-Quality Injection Pump

A functional high-pressure pump directly impacts the performance of a diesel engine – from ease of cold starting, through acceleration dynamics, to fuel consumption and emissions. By choosing an original BMW injection pump matched to the N47N unit, you minimize the risk of problems such as power drops, uneven idling, or engine control unit errors. This is particularly important in modern common rail engines, where fuel system tolerances are very narrow.

Technical Support and Additional Materials

To better understand the operating principles of your BMW's fuel system and to approach diagnostics and component replacement correctly, it is worth familiarizing yourself with the guide describing the construction and operation of the entire system – the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair discusses it in detail.

If you are modernizing or servicing the fuel system in several vehicles of this brand and need other elements from the High-Pressure Fuel Pumps group for BMW, to maintain technical solution consistency and simplify parts selection, check the available parts in the BMW High-Pressure Fuel Pumps category.