BMW E81 E87 LCI E90 E91 F10 N47 N57 Diesel Fuel Injector 7805428

BMW E81 E87 LCI E90 F10 N47 N57 Diesel Injector Fuel Injector 7805428 is an original diesel fuel system component designed for BMW N47 and N57 diesel engines. The used injector nozzle ensures a factory fit for the engine unit and allows for the restoration of proper injector system operation without the need for unknown origin aftermarket parts.

Specifications and technical data

• SKU: 7805428-9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805428
• Substitutable numbers: 13537805423, 7805423, 13537800124, 7800124, 13537805428, 7805428, 13518577654 7800123, 8577654, 13517800593, 7800593, 13537799992 13537799994 13537799995, 7799992 7799994 7799995, 0445010617, 0 445 010 617
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and Role in the Injection System

The injector nozzle in a Diesel BMW N47 / N57 engine is responsible for precise high-pressure fuel delivery directly into the combustion chamber. A correctly selected injector is crucial for:

• stable engine operation across the full load range,
• maintaining the correct mixture composition and reducing smoke,
• efficiency of the exhaust gas treatment system (DPF, catalytic converter),
• economical fuel consumption while maintaining nominal performance.

The offered injector nozzle comes from a Diesel fuel supply system, guaranteeing compatibility with the factory operating characteristics of BMW engines from the N47 and N57 families used in, among others, the E81, E87 LCI, E90, and F10 series.

Benefits of Using an Original BMW Injector Nozzle

Using an original fuel injector in place of a worn or damaged component allows for the preservation of parameters specified by the vehicle manufacturer. In practice, this means:

• improved engine refinement – reduced vibrations, uneven idling, and jerky acceleration,
• more predictable throttle response due to proper fuel metering,
• reduced risk of overheating internal engine components resulting from incorrect injection,
• protection of the turbocharger and particulate filter by reducing excessive smoke and incomplete combustion.

The original injector nozzle from the Injector Nozzles category is designed for long-lasting, repeatable performance in the demanding operating conditions typical of BMW diesel engines.

Component Condition and Installation Aspects

The offered fuel injector is a used component, which in practice means the possibility of an economical repair of the fuel system while maintaining the original manufacturer's specifications. Before installation, it is recommended to:

• perform professional diagnostics of the injection system in the vehicle,
• verify the injector's seal and operating parameters on a test bench,
• use new seals and properly prepare the cylinder head seats.

A correctly installed injector nozzle in a BMW diesel engine helps reduce the risk of recurring faults related to leaks, exhaust blow-by, or pressure drops in the common rail.

Diagnostics and Prevention of the Injection System

When replacing an injector, it is worth paying attention to typical symptoms of wear in diesel fuel system components, such as starting difficulties, power loss, or increased fuel consumption. Detailed information on recognizing injector problems can be found in the article: Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails. This knowledge facilitates the decision to replace a single injector nozzle or a complete set.

Related BMW Injector Nozzles

If you are also looking for other components from the BMW injector nozzles category for your car, check out the BMW injector nozzles available in our store. This will allow you to select a complete solution tailored to your specific engine unit and model series.