BMW E81 E87 LCI E90 Complete Set Radiator Fan Automatic Petrol N43

Description

BMW E81 E87 LCI E90 Complete Set Radiator Fan Automatic Petrol N43 is an original cooling system component designed for BMW vehicles with a petrol engine and an automatic transmission. It ensures stable heat dissipation from the radiator, which translates into a safe operating temperature for the power unit. Thanks to its factory design, it is a solution perfectly matched to the engine compartment, allowing for an efficient replacement of a worn-out fan.

Specifications and technical data

• SKU: 7523259-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 16326937515
• Substitutable numbers: 16326937515, 6937515, 17117564654, 7564654, 17117590699, 7590699, 17427523259, 7523259, 17217529499, 7529499, 64539206300, 9206300, 64539229022, 9229022, 645369300406450916977264536930038, 6453920629764509169791, 69300409169772693003892062979169791, 7581660
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Caps

Purpose and function in the cooling system

The presented fan works directly at the radiator, supporting airflow in conditions where natural cooling while driving is insufficient, for example in traffic jams or under higher engine load. In vehicles with an automatic transmission, a stable coolant temperature is of particular importance, as it also affects the operating conditions of the equipment cooperating with the gearbox.

The component has been designed to work with petrol engines, which means appropriately selected operating parameters and airflow characteristics. A functional radiator fan reduces the risk of overheating, protecting the power unit from excessive thermal loads.

Compatibility and reference numbers

The fan comes from a group of parts marked as original for the BMW brand, which facilitates selection for a specific vehicle configuration. The manufacturer has provided a set of interchangeable numbers for this model, so it may appear in various catalogs under different designations, while maintaining the same function and mounting method.

To ensure a perfect fit, it is recommended to verify compatibility by OEM number or reference numbers and compare the design with the currently installed component. Such an approach minimizes the risk of ordering errors and speeds up the service process.

Operational characteristics

As a part intended for the cooling system in cars with an automatic transmission, the fan operates under demanding temperature conditions. The design provided by the manufacturer ensures adequate airflow efficiency and stable operation under typical loads encountered in daily use.

In vehicles with a petrol engine, it is particularly important to maintain a repeatable operating temperature, which affects the engine’s smoothness, fuel consumption, and component durability. A correctly selected radiator fan supports the operation of the thermostat and control system, ensuring predictable vehicle behavior in various road conditions.

Condition and benefits of using a used part

The offered component comes from the secondary market, which allows for reducing repair costs while maintaining the original design provided by the vehicle manufacturer. In the case of cooling system components, choosing a used OEM part is often preferred over cheaper replacements with uncertain specifications.

A used BMW radiator fan is a solution that allows you to maintain factory fitment to brackets, covers, and other elements in the engine compartment, which facilitates installation and limits the need for modifications. Before installation, a standard visual inspection and verification of operation in the vehicle or on a diagnostic stand are recommended.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the front body area in your BMW and need other elements from the same group, such as covers, overlays, or additional moldings, check the available parts in the BMW Overlays category.

When selecting elements from the secondary market, especially in the case of electrical and electronic components, it is worth following proven procedures for verifying numbers and compatibility. Practical tips on choosing used modules and sensors, how to check markings, and installation rules can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?