Injector Set BMW F20 F30 LCI Mini F60 Petrol B38 Fuel Injector 7639990

BMW F20 F30 LCI Mini F60 Gasoline B38 Fuel Injector Set X4 7639990 is a set of four injector nozzles designed for B38 gasoline engines in BMW F-series and Mini F60 models. The set provides a functional service solution for users seeking a factory fuel supply system with stable operating parameters.

Specifications and technical data

• SKU: 7639990-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7639990
• Substitutable numbers: 13537639990, 7639990, 13538625396, 8625396
• Fuel type: Petrol
• Category: Fuel Injectors

Intended Use and Set Characteristics

The injector nozzles set for B38 gasoline engine has been designed for the power units used in BMW F20, BMW F30 LCI, and Mini F60. The X4 set ensures consistent injection characteristics across all cylinders, promoting smooth engine operation and facilitating future diagnostics.

The components belong to the Injector Nozzles category, making them ideal for users modernizing or restoring the fuel system functionality in BMW and Mini vehicles with gasoline engines.

Construction and Functional Parameters

The injectors included in the set are adapted for operation in a gasoline supply system, maintaining precise fuel delivery. The nozzle design allows for proper fuel spray formation, contributing to efficient combustion in the chamber and stable operation of the B38 unit across its full load range.

Key functional features of the set include:

• Set of four injectors – facilitates simultaneous replacement of the entire bank, minimizing differences in individual cylinder characteristics.
• Compatibility with gasoline engines – design adapted to the operating parameters of the B38 unit.
• Component consistency – all elements come from a single set, promoting uniform supply conditions.

Application in BMW and Mini Vehicles

The injector set is designed for modern gasoline units used in BMW F20, BMW F30 LCI, and Mini F60, where precise fuel delivery directly impacts the smoothness of operation, dynamics, and fuel consumption. Replacing the set of injector nozzles is particularly recommended in cases of:

• Uneven engine idle,
• Performance drop at medium and high RPMs,
• Increased fuel consumption or hot start issues.

The presence of the OEM part number and related interchangeable numbers in the technical specification facilitates component selection, allowing for precise matching to the specific vehicle configuration.

Benefits of Installing the Injector Set

Using a complete set of four injector nozzles in the B38 gasoline engine offers a range of practical operational benefits:

• Unified injection characteristics – all cylinders operate under similar conditions, promoting smooth unit operation.
• Improved combustion control – properly functioning injectors help maintain the correct fuel-air mixture.
• Diagnostic support – replacement with a set of known origin simplifies subsequent analysis of potential fuel system faults.

This solution is particularly beneficial for users who want to restore correct fuel system operating parameters without experimenting with individual, randomly selected components.

Technical Support and Additional Materials

If you need other BMW injector nozzles for your model, please use our dedicated category: BMW injector nozzles. You will find a wide selection of solutions tailored to different generations and engine versions.

When working with the fuel system, it is advisable to be aware of typical injector fault symptoms. We encourage you to read the article discussing the symptoms and consequences of neglecting this area: diesel injector faults – how to recognize them and what are the consequences of their neglect. Although it concerns diesel units, many diagnostic and operational principles remain similar for modern gasoline systems.

Additionally, if you are interested in the broader context of fuel system operation, its diagnostics, and the principles of selecting components by OEM numbers, the following material may be helpful: fuel system – injectors, pumps, and fuel tank: maintenance and repair. This provides practical knowledge for planning comprehensive service work.