BMW E87 LCI E90 120d 320d Diesel N47 Set Injector Fuel Pump Injection System

BMW E87 LCI E90 Diesel 120d 320d Injector Set Fuel Injection System N47 is a complete, used set of fuel injection system components designed for BMW diesel engines from the N47 family in the 1 Series E87 LCI and 3 Series E90 120d and 320d models. This solution is for users seeking a technically matched, factory component for professional repair or comprehensive regeneration of the fuel supply system.

Specifications and technical data

• SKU: 7805428-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805428
• Substitutable numbers: 13537805428, 13537800601 04455214183 13518577643, 7797874 0445010506 13537800667, 13537800669 13537809128 13534740787, 13517812051 13517797876 13538511812, 7805428 7800601, 0 445 214 183, 8577643, 0 445 010 506, 7800667 7800669 7809128, 4740787 7812051
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Compatibility with N47 Engine

The presented injector set for BMW with N47 engine is designed to work with diesel units in the 120d and 320d versions. The system's design is adapted to the operating characteristics of modern common rail diesels, ensuring precise fuel delivery, stable idling, and correct behavior under load.

Original origin from the BMW OE brand means that the geometry, mounting points, and operating parameters are consistent with the manufacturer's factory specifications. Thanks to this, the set provides a proper basis for restoring the correct operation of the fuel injection system without the need for installation modifications or mechanical adaptations.

Fuel Injection System Design and Operating Parameters

The system belongs to the category of injector nozzles, which means that the key element is the precise tips responsible for atomizing fuel in the combustion chamber. In a Diesel engine, the correct spray pattern directly affects:

• efficient mixture combustion – better utilization of the fuel's chemical energy,
• maintaining uniform engine operation – reducing vibrations and misfires,
• exhaust emission control – supporting exhaust aftertreatment systems and meeting environmental standards.

Injectors in this type of system are designed to operate under high pressure, typical for modern diesel engines. Appropriately selected opening and closing parameters of the nozzles allow for multi-phase fuel injection, which translates into the engine's refinement and flexibility.

Application in Service Practice

A used BMW diesel injector set is particularly useful in situations where the existing system has suffered mechanical damage, seizure, or an uneconomical repair failure. It can be used as:

• a set for regeneration – a basis for professional refurbishment in a specialized service center,
• a supply set – a source of selected components for selective repairs,
• an economical solution – an alternative to purchasing new components while maintaining the factory design.

Before installation, the standard workshop procedure is recommended: verification of component condition, potential cleaning, testing on a test bench, and adaptation of parameters in the engine control unit according to the vehicle manufacturer's recommendations.

Benefits of Properly Functioning Injector Nozzles

A functional fuel injection system in a diesel engine translates into a range of tangible operational benefits. The most important include:

• stable engine operation – reduced jerking, easier cold starts, smooth idling,
• more predictable dynamics – better throttle response and smoother acceleration,
• optimal fuel consumption – maintaining factory fuel consumption values with proper operation,
• lower risk of secondary damage – protection of the turbocharger, particulate filter, and piston-crankshaft assembly components.

In case of any worrying symptoms related to injector operation, it is worth consulting the guide Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails, which discusses symptoms, consequences, and diagnostic methods in detail.

Why Choose Original BMW Injector Nozzles

Choosing components from the BMW injector nozzles category originating from the factory system means maintaining compliance with the vehicle manufacturer's design. This includes:

• certainty of structural fit – compatibility with the cylinder head, common rail, and engine accessories,
• consistency of operating parameters – correct fuel flow characteristics and injection times,
• easier diagnostics – predictable behavior in computer tests and on test stands.

If you are looking for other components from the same group, check the available BMW injector nozzles to select components that are consistent with your car's fuel system.