BMW F10 F11 F20 F21 F30 LCI Fuel Petrol Injector EU6 7639994

BMW F10 F11 F20 F21 F30 LCI Injector 7639994 is an original BMW gasoline injector nozzle, designed for modern powertrains in popular post-facelift (LCI) F-series models. This component ensures precise fuel delivery, stable engine operation, and proper combustion parameters in gasoline fuel systems.

Specifications and technical data

• SKU: 7639994
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7639994
• Substitutable numbers: 13647639994, 7639994
• Fuel type: Petrol
• Category: Fuel Injectors

Technical Characteristics of the BMW Gasoline Injector

The presented injector nozzle belongs to the category of Injector Nozzles and is a factory component from BMW, designed to work with gasoline engine fuel systems. The injector's construction is adapted for precise fuel atomization, which translates to uniform cylinder filling and correct powertrain operation across the full range of loads.

The injector is intended for use in LCI facelifted BMW F-series models such as F10, F11, F20, F21, and F30, where high fuel dose repeatability and compliance with factory engine control unit maps are required. Using an original nozzle helps maintain stable engine operating parameters, reduces the risk of misfires, and supports the maintenance of correct exhaust emission values.

Application and Role in the Gasoline Fuel System

The BMW gasoline injector is responsible for:

• Accurate fuel dosing to each cylinder according to signals from the engine control unit.
• Proper gasoline atomization, which promotes efficient mixing with air and uniform combustion.
• Maintaining the powertrain's smooth operation at idle and during dynamic acceleration.
• Reducing fuel consumption by preserving factory dose and injection time parameters.

Selecting the correct injector nozzle is crucial for the longevity of the gasoline engine, proper catalytic converter function, and maintaining the power and torque specified by the manufacturer.

Benefits of Using an Original BMW Injector Nozzle

Using an original injector in place of a worn-out component restores the correct operating parameters of the fuel system. The most significant advantages include:

• Factory compatibility with the control unit – no need for software or installation modifications.
• Appropriate flow characteristics tailored to the specific BMW powertrain.
• Stable engine starting (cold and hot), without extended cranking.
• Reduced risk of uneven idling and hesitation during acceleration.

By maintaining the original injector specifications, problems with excessive fuel consumption, power loss, or fuel-air mixture errors can be effectively minimized.

Condition, Selection, and Installation of the Injector

The offered injector nozzle is a used part, allowing for an economical repair of the fuel system while maintaining the original BMW construction. Before installation, it is recommended to verify compatibility with the specific engine version and check operating parameters on a diagnostic bench or using an appropriate tester.

When replacing the injector, it is worth paying attention to:

• Proper seat sealing – using appropriate seals and O-rings.
• Cleanliness of the fuel system – reducing the risk of contaminants entering the nozzle.
• Correct bleeding procedure of the system after installation.

A correctly selected and installed injector helps maintain predictable vehicle behavior in everyday use and during dynamic driving.

Related Technical Materials and Other BMW Injector Nozzles

If you want to better understand the importance of functional injectors in internal combustion engines, it is worth reading an article discussing the symptoms and consequences of injector failures in diesel engines: diesel injector failures – symptoms, consequences, and diagnostics. Although it concerns diesel engines, many described phenomena (power loss, uneven operation, increased fuel consumption) have their equivalents in gasoline engines as well.

Looking for other BMW injector nozzles suitable for different models and engine versions? Check out our offer in the BMW injector nozzles category, where you will find a wide selection of original components for this brand's fuel systems.