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

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E81 E87 LCI E90 E91 F10 N47 N57 Diesel Fuel Injector is an original fuel system component designed for BMW N47 and N57 diesel engines. As part of the Fuel Injector Nozzles group, it ensures precise fuel dosing, stable engine operation, and correct combustion parameters. This is a solution for users looking for a technically matched injector for specific BMW 1, 3, and 5 Series models.

Specifications and technical data

• SKU: 7805428-10
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805428
• Substitutable numbers: 13537805423, 7805423, 13537800124, 7800124, 13537805428, 7805428, 135185776547800123, 8577654, 13517800593, 7800593, 135377999921353779999413537799995, 779999277999947799995, 0445010617, 13537805429, 7805429
• Fuel type: Diesel
• Category: Fuel Injectors

Purpose and compatibility with BMW Diesel engines

The presented fuel injector has been designed for use in modern BMW N47 and N57 diesel engines, used in models such as the E81, E87 LCI, E90, E91, and F10. The design, adapted to the requirements of common rail systems, enables proper fuel spray formation, which translates into smooth engine operation, reduced vibrations, and improved performance at idle and under load.

A properly selected injector is crucial for cold start parameters, acceleration dynamics, and idle stability. Using a component dedicated to a specific family of BMW engines reduces the risk of ECU errors, rough running, and excessive smoke.

Technical characteristics and role in the fuel system

The injector from the Fuel Injector Nozzles category is responsible for precisely dosing diesel fuel into the combustion chamber under high pressure. In practice, this means:

• control of the fuel quantity supplied depending on load and engine speed,
• shaping the appropriate injection timing to reduce combustion knock,
• impact on exhaust emission levels and fuel consumption,
• maintaining proper engine power and flexibility.

A properly functioning injector helps maintain stable pressure in the common rail, which is essential for the operation of all cylinders. As a result, the fuel system maintains consistent parameters, and the engine control unit can execute programmed injection maps without the need for error compensation.

Condition, origin, and installation aspects

The offered item is an original BMW component in used condition, which allows for an economical repair of the injection system while maintaining factory geometry and fitment. A used OEM injector is often chosen as an alternative to aftermarket replacements with uncertain parameters, especially in demanding diesel engines.

Before installation, standard workshop procedures are recommended: verifying tightness, checking operating parameters on a test bench, and installation while maintaining the cleanliness of the fuel system. A correctly performed installation reduces the risk of contaminants entering the common rail system and extends the service life of the entire system.

Benefits of using an original BMW injector

Using an original fuel injector in a BMW diesel engine provides a number of practical benefits:

• Factory fitment – compliance with engine control unit requirements and the parameters of the injection system used in the BMW E81, E87 LCI, E90, E91, and F10.
• Stable engine operation – reduction of jerking, misfires, and starting problems typical of worn injectors.
• Combustion optimization – proper fuel atomization helps keep diesel consumption at the expected level.
• Better diagnostics – the original component facilitates the interpretation of data from diagnostic testers and the comparison of injection quantity corrections.

For users who want to learn more about the symptoms of wear and methods of verifying fuel injection components, the following article will be helpful: Diesel injector faults – how to recognize them and the risks of neglecting them.

Expanding the BMW injection system – related components

If you are planning a comprehensive repair or upgrade of the fuel supply area in your BMW and need other items from the same group, such as additional injectors, nozzle tips, or fuel return components, check out the available parts in the BMW Fuel Injector Nozzles category.

This approach allows for consistent maintenance of the entire injection system, which is particularly important in modern diesel engines, where the cooperation between individual components has a direct impact on the durability of the engine and the comfort of daily operation.