Radiator Fan BMW E87 E90 N45 N46 N52 N53 400W Housing With Fan SYC 116-223-70

Radiator Fan BMW E87 E90 N45 N46 N52 N53 400W Housing With Fan SYC is a cooling system component designed for BMW 1 Series E87 and 3 Series E90 models, engineered to work with the factory liquid radiator. Thanks to the fan's power, it ensures stable heat dissipation from the cooling system, which translates into a safe engine operating temperature even under demanding conditions. It is a practical solution for users looking for a proven OEM component for repairing or upgrading the cooling system.

Specifications and technical data

• SKU: 7590699-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7590699
• Substitutable numbers: 7590699, 17117590699, 7523259, 17427523259, 116-223-70, KD
• Category: Radiators

Purpose and function in the cooling system

The presented fan belongs to the Water Radiators category and works with the liquid radiator, supporting heat exchange between the coolant and the environment. It is responsible for forced airflow through the radiator core, which is particularly important during city driving, idling in traffic jams, and under high engine load.

In practice, this means that a properly functioning fan reduces the risk of engine overheating, stabilizes the operating temperature, and supports the durability of other cooling system components, such as hoses, the thermostat, or the liquid radiator itself.

Construction and performance parameters

The Radiator Fan BMW E87 E90 N45 N46 N52 N53 400W Housing With Fan SYC has been designed as a component structurally matched to the engine bay of the BMW E87 and E90, with the appropriate housing shape and rotor diameter. The rated power ensures efficient airflow while maintaining a reasonable load on the vehicle's electrical system.

Key performance features include:

• design specific to certain BMW models, which facilitates installation in place of the factory element,
• maintenance of the correct direction and characteristics of airflow through the radiator,
• adaptation to work in the engine bay, under conditions of increased temperature and humidity.

Thanks to this, the component can be used both as a repair element after a failure and as part of a preventive replacement of a worn-out fan.

Compatibility and part identification

The offered fan is an original BMW component, assigned to a specific OEM part number and possessing interchangeable numbers, which facilitates verification of compatibility with a given vehicle. This allows for precise selection of the component for a specific engine version and model year, minimizing the risk of installation problems.

Data such as SKU and brand designation are also available in the product description, allowing for quick comparison of the part with existing cooling system elements or vehicle service documentation.

Product condition and service application

The item is offered as used, which makes it an attractive cost-effective solution while maintaining the manufacturer's original specifications. This type of component is suitable for:

• post-accident repairs, when the front end along with the cooling system has been damaged,
• servicing of heavily used vehicles, where the fan shows signs of wear,
• restoring full efficiency of the cooling system in fleet and private cars.

For the user, this means the possibility of restoring the correct operation of the cooling system while maintaining the factory operating characteristics of the fan.

Technical support and further reading

To better understand the impact of a functional fan and radiator on engine durability, it is worth reading the guide on cooling system diagnostics and service: Engine cooling system – overheating, repair, and used radiators. The article discusses practical symptoms of overheating, typical causes of failures, and the importance of properly selected cooling components in BMW cars.

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 liquid radiators, fans, or fan housings, check the available parts in the BMW Water Radiators category.