BMW F20 F21 F22 F30 F32 LCI Engine Cooling Radiator Fan Motor 8641947

BMW F20 F21 F22 F30 F32 LCI Engine Cooling Radiator Fan Motor is an original BMW group component designed for efficient cooling of the powertrain in LCI (Life Cycle Impulse) F-series models. This used fan motor ensures a factory-fit, maintaining correct airflow parameters and stable operation of the cooling system. It is a practical solution for users looking for a proven OEM part at a reasonable price, while maintaining high functionality.

Specifications and technical data

• SKU: 8625440-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8625440
• Substitutable numbers: 17428625440, 8625440, 8641947, 9300064
• Category: Fan Motors

Purpose and function in the cooling system

The radiator fan motor in the version used in the BMW F-series is responsible for forced airflow through the radiator, especially at low driving speeds and in urban conditions. A properly functioning fan drive:

• stabilizes the operating temperature of the internal combustion engine,
• reduces the risk of overheating in traffic jams and during intensive use,
• supports the proper operation of the air conditioning system when the condenser is located in the same airflow,
• maintains operating parameters in accordance with BMW manufacturer specifications.

Thanks to a design consistent with factory standards, BMW fan and blower motors work seamlessly with the vehicle's original electrical installation and electronic control, which facilitates diagnostics and subsequent service maintenance.

Construction and fitment for BMW F20, F21, F22, F30, F32 LCI

The presented fan motor has been designed specifically for the BMW F-series platform after the facelift (LCI), which translates into correct mounting, appropriate rotor diameter, and compatibility with the factory fan shroud. This means:

• secure seating in the radiator fan housing,
• maintenance of the airflow direction and efficiency intended by the manufacturer,
• proper cooperation with temperature sensors and the engine control unit.

The original BMW origin promotes the maintenance of proper operating culture – reduced vibrations, smooth start-up, and predictable response to control signals from the temperature management system.

Benefits of choosing an original used fan motor

Choosing a used radiator fan motor for the BMW F-series is a reasonable alternative to new aftermarket replacements, especially when you want to maintain factory operating characteristics. Key advantages include:

• Original BMW specification – maintained operating parameters consistent with the manufacturer's design.
• Better mechanical and electrical fit compared to many universal replacements.
• Possibility to verify compatibility by OEM number and interchangeable numbers in service documentation or via VIN.
• Rational cost-to-durability ratio, especially for maintenance repairs.

If you want to learn more about the cost-effectiveness of using aftermarket components, selection procedures based on VIN and OEM, and the real differences between new and used parts, it is worth reading the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses the practical aspects of purchasing key powertrain components.

Condition, verification, and preparation for installation

The fan motor comes from dismantling and is offered as a used part, which allows for reduced repair costs while maintaining functionality consistent with the manufacturer's requirements. Before installation, it is recommended to:

• check the vehicle's electrical installation for any short circuits or burnt areas,
• verify the condition of connectors and ground wires,
• check the fan operation after installation – start the engine, observe the activation at the appropriate temperature and with the air conditioning turned on.

This approach minimizes the risk of re-failure and allows you to fully utilize the potential of the installed component.

Expansion of the cooling system in BMW – the same parts group

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional fan drives, blower control modules, or complete fan assemblies, check the available parts in the BMW fan and blower motors category.