BMW E60 E61 LCI 520d Diesel N47 177HP Set Fuel Injection System

BMW E60 E61 LCI 520D Diesel N47 177HP Fuel Injection System Kit is a complete, used set of injection components designed for the N47 diesel engine with 177 HP. The product comes from the original BMW parts line, ensuring a proper fit with the factory fuel system configuration in facelifted 5 Series models.

Specifications and technical data

• SKU: 7809129-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7809129
• Substitutable numbers: 7809129, 13537809129, 13537800605, 7800605, 13537800609, 7800609, 13537797877, 7797877, 7807495, 13537800604, 7800604, 8519494, 11128519494, 7805256, 13537805256, 13538578607, 8578607
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Technical Characteristics

The fuel injection system kit is specifically designed for the N47 520D unit, operating on Diesel fuel. It is responsible for precise dosing of diesel fuel into the combustion chambers, which is crucial for stable engine operation, smooth running, and emission parameters.

The components included in the kit work with the factory BMW engine control, maintaining the original operating pressures, spray patterns, and injection timings intended for this engine. This allows for the preservation of the vehicle's proper dynamics and the correct operation of onboard systems.

Category: BMW Injector Nozzles

The presented product belongs to the Injector Nozzles category, which are components responsible for atomizing fuel under high pressure. In the N47 engine, properly functioning nozzles are essential for:

• maintaining even operation of all cylinders across the full load range,
• reducing smoking and excessive exhaust emissions,
• stable cold starts and starting with a warm engine,
• maintaining factory fuel consumption and the engine's proper flexibility.

If you are looking for other parts in the BMW injector nozzles category, check out our dedicated offer: BMW injector nozzles.

Benefits of Using an Original Injection Kit

Using a factory injection kit in a BMW 520D with an N47 engine allows for maintaining the operating parameters set by the vehicle manufacturer. In practice, this means:

• correct fuel doses across the entire RPM range, which translates to predictable performance,
• improved engine smoothness – reduced vibrations and uneven idling,
• lower risk of overloading auxiliary components (including turbocharger and particulate filter) due to proper mixture combustion,
• compatibility with factory engine control unit maps, without the need for additional software modifications.

A used fuel injection system kit is a good solution when multiple components need to be replaced simultaneously, and the priority is to maintain the original specifications at a reasonable repair cost.

Interchangeable Numbers and Part Identification

The offered kit has an assigned OEM part number and associated interchangeable numbers, which facilitates unambiguous identification in BMW catalogs and comparison with the parts installed in the vehicle. This information is particularly important when selecting parts for specific equipment versions and model years of the facelifted BMW E60 and E61.

To ensure the product is suitable for your car, it is advisable to compare the numbers visible in the technical specifications with the markings on the currently installed components or to consult a mechanic specializing in the BMW brand.

Diagnostics and Operation of Diesel Injection Systems

A functional injection system has a direct impact on the durability of the N47 engine and driving comfort. Symptoms such as difficult starting, loss of power, increased fuel consumption, or smoking may indicate wear of the injector nozzles or other components of the kit. In such cases, it is advisable to perform professional diagnostics and consider replacing the set with a proven kit.

If you want to better understand the symptoms of wear and the consequences of neglecting repairs, read the article: Diesel Injector Faults – How to Recognize Them and What are the Consequences of Neglecting Them. This is a practical addition to your knowledge when planning maintenance work on your BMW 520D.