BMW 3 5 Series E36 E39 Petrol Engine Cooling System Radiator Fan 11 Blades

BMW 3 5 Series E36 E39 Petrol Engine Cooling System Radiator Fan 11 Blades is an original radiator fan designed for BMW 3 Series E36 and 5 Series E39 petrol engines. This component is responsible for stable cooling system operation, ensuring proper airflow through the radiator and supporting safe engine performance under various load conditions. Thanks to its 11-blade design, the fan effectively assists the cooling system, which is important both in city traffic and during long highway drives.

Specifications and technical data

• SKU: 1723363
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1712058
• Substitutable numbers: 11521723363, 1723363, 11521719265, 1719265, 11521723573, 1723573, BG
• Fuel type: Petrol
• Category: Other Engine Cooling Components

Purpose and function in the cooling system

The presented radiator fan is a component of the petrol engine cooling system, responsible for forced air circulation through the radiator package. In BMW 3 Series E36 and 5 Series E39 models, its proper operation is crucial for maintaining a stable engine operating temperature, especially at low driving speeds or when idling.

The 11-blade rotor configuration allows for efficient airflow while maintaining appropriate operating noise levels. A well-chosen fan reduces the risk of engine overheating, supports the durability of seals, the cylinder head, and accessories, and influences the stability of operating parameters under high thermal load conditions.

Design and fitment for BMW 3 Series E36 / 5 Series E39

The fan has been designed as a component compliant with BMW factory standards, which translates into proper fitment with engine accessories and cooling system shrouds. The appropriately selected diameter, shape, and number of blades ensure compatibility with original components installed in petrol versions of the E36 and E39.

By maintaining geometry consistent with the manufacturer's solutions, installation is predictable, without the need for modifying adjacent components. This is important for both workshops and individual users who expect a part that allows for the efficient replacement of a worn fan while maintaining factory cooling characteristics.

Performance characteristics and benefits of use

Replacing a worn or damaged radiator fan with a functional unit has a direct impact on vehicle operation safety. A functional fan:

• supports the maintenance of a stable petrol engine operating temperature,
• reduces the risk of overheating in traffic jams and during intensive driving,
• allows for maintaining cooling system performance parameters close to factory levels,
• influences the service life of coolant and cooperating components.

The product comes from the original BMW parts segment, which for many users and service centers is an important argument when selecting components for premium vehicles. A used component of this type allows for economical repair while maintaining the proper standard of workmanship and fitment.

Selection by numbers and compatibility with the petrol system

The fan is designed to work with petrol engines, so when selecting, it is worth paying attention to the vehicle's fuel type and cooling system configuration. Additionally, the part has a dedicated OEM number and a set of interchangeable numbers, which facilitates precise identification in catalogs and service systems without the risk of error.

For certainty of fitment, it is recommended to compare vehicle data (model, generation, engine type) with catalog information and verify compatibility by part number. This approach minimizes the risk of installing the wrong fan and speeds up the service process.

Support with selection and additional materials

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 radiator fans, fan shrouds, or additional cooling system components, check the available parts in the Other BMW category.

For users interested in comparing solutions used in sports versions of cars from the premium segment, it is worth reading the material discussing the differences in engine, brake, and chassis construction – details can be found in the article Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to deepen your knowledge on the conscious selection of elements from the secondary market, practical tips regarding condition verification, selection by numbers, and safe online purchasing can be found in the guide Safe purchase of used car parts online – a step-by-step guide. Thanks to this, it will be easier for you to assess how to effectively use used components in the service of your BMW.