BMW 1 2 3 Series F20 F21 F22 F30 F31 Engine Cooling Radiator Fan Housing Cover

BMW 1 2 3 Series F20 F21 F22 F30 F31 Engine Cooling Radiator Fan Housing Cover is an original BMW group component designed for the cooling system in popular 1, 2, and 3 series models. This type of housing stabilizes the fan's operation, directs airflow through the radiator, and helps maintain proper thermal conditions for the engine unit. As a result, it is a practical solution for cooling system repairs and replacing damaged components in BMW vehicles.

Specifications and technical data

• SKU: 7640508-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7640508
• Substitutable numbers: 17427640508, 7640508, 17427600557, 7600557
• Category: HVAC Blower Motor & Wheel

Purpose and function in the cooling system

The radiator fan housing cover in BMW F20, F21, F22, F30, and F31 series models is responsible for properly guiding the airflow through the radiator and providing stable mounting for the fan. A correctly selected component of this type:

• ensures efficient heat exchange in the cooling system,
• reduces unwanted vibrations and fan displacement,
• protects the fan blades from contact with other engine bay components,
• supports the maintenance of optimal engine operating temperature under various load conditions.

Thanks to its precise geometry and fitment for the specific BMW platform, the housing works seamlessly with the factory fan and radiator, which facilitates installation and subsequent operation.

Technical characteristics and BMW fitment

The presented cover comes from the Engines and blower wheels group, meaning it was designed to operate in the immediate vicinity of the engine unit and components responsible for forced airflow. The construction is adapted to the engine bay of F-series BMW models, maintaining factory mounting points and a shape that integrates with the radiator and fan.

As an original BMW part, the housing is prepared for installation in the factory location without the need for modifications or adjustments. This solution is particularly beneficial for professional repairs where repeatability, compatibility with other components, and maintaining the manufacturer's original design concept are essential.

Condition, origin, and practical application

The cover is a used component, which in practice means a favorable cost-to-functionality ratio while maintaining original BMW specifications. This type of salvaged part is suitable both for standard repairs after mechanical damage (e.g., after a collision) and for comprehensive replacement of cooling system elements to restore proper engine operating parameters.

Choosing an original, used radiator fan housing is particularly attractive for users who want to maintain component consistency in their BMW, avoiding random aftermarket replacements with uncertain fitment. It is also a good solution for workshops specializing in the BMW brand, where ease of installation and predictable part performance during operation are valued.

Application in tuning and upgrades

When modifying a vehicle – both visually and mechanically – a stable and efficient cooling system is crucial for engine safety. Replacing a damaged or deformed fan housing with a functional unit from this offer allows for maintaining thermal reserves even during more demanding driving. If you are interested in a broader context of using used components for car modifications, it is worth reading the article The best used parts for tuning your car, which discusses a practical approach to tuning using salvaged parts.

Expanding the BMW cooling system

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 housings, mounting elements, or components working with the fan, check the available parts in the BMW Engines and blower wheels category.