BMW X3 Series E83 2 Engine Cooling Radiator Fan Housing With Fan 400W 3452509

BMW X3 Series E83 2 Engine Cooling Radiator Fan Housing With Fan 400W is a complete radiator fan housing with a pre-installed fan, designed for the engine cooling system of the BMW X3 E83. This solution ensures stable airflow through the radiator, supporting efficient engine operation in demanding road conditions. Thanks to its OEM factory design, this component guarantees a precise fit with original mounting points and electrical wiring.

Specifications and technical data

• SKU: 3452509-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3452509
• Substitutable numbers: 17113452509, 3452509, 17113414008, 3414008, 17113401056, 3401056, EM
• Category: Fans

Purpose and function in the cooling system

The radiator fan housing for the BMW X3 E83 is responsible for active airflow through the radiator, especially during city driving, idling in traffic, and in high ambient temperatures. The integrated 400W fan works in conjunction with the vehicle's sensors and control unit, activating based on engine load and coolant temperature. A properly functioning fan assembly reduces the risk of engine overheating and supports stable engine performance parameters.

Radiator fan assembly construction

The presented item belongs to the Cooling Fans category and is a complete assembly: the housing directs the airflow through the radiator core, while the mounted fan generates the necessary flow. This design facilitates installation – you replace the entire module without the need to separately match individual components. The use of original blade geometry and proper seating within the housing translates into efficient operation while maintaining controlled noise levels.

Benefits of using an original BMW radiator fan

Using a complete radiator fan assembly dedicated to the BMW X3 E83 offers a range of practical benefits:

• Factory fitment – compatibility with the vehicle's original design, with no need for mounting or wiring modifications.
• Consistent operation with the engine control system – the fan works in harmony with factory temperature sensors and control logic.
• Stable cooling under high load conditions – particularly important when driving at full load or on hot days.
• Reduced risk of overheating – a functional fan assembly helps protect the engine and accessories from excessive temperatures.

This used condition item provides an attractive cost-effective solution, allowing for the restoration of the cooling system's efficiency while maintaining a favorable price-to-functionality ratio.

Selection and compatibility with the BMW X3 E83

The offered radiator fan has been designed specifically for the BMW X3 E83 series, which simplifies part selection in terms of dimensions, mounting point placement, and electrical parameters. Compatibility verification with the vehicle can be performed based on the OEM part number and available interchangeable numbers presented in the technical specifications section. This minimizes the risk of purchasing an incompatible part and reduces vehicle downtime at the service center.

Technical support and additional information

To better understand how high temperatures affect the cooling system and when choosing a used fan is a reasonable compromise between cost and safety, it is worth checking our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. You will find practical tips on the operation and diagnostics of cooling components there.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional fans, housings, or blower modules, check out the available parts in the BMW Cooling Fans category.