BMW 1 3 Series F20 F21 F30 F31 Engine Cooling Radiator Fan Motor 400W 8641946

BMW F20 F21 F30 F31 Radiator Fan Motor 400W 8641946 is an original cooling system component designed for BMW 1 and 3 Series models. It ensures efficient airflow through the radiator, contributing to stable engine operating temperatures and safe thermal load for components. This is a solution for users who expect factory fitment and predictable fan operation.

Specifications and technical data

• SKU: 8641963-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8641946
• Substitutable numbers: 174286419638641946, 8641963, 174276405091742760055817428621191, 764050976005588621191
• Category: Caps

Intended Use and Fitment for BMW F20, F21, F30, F31

The 400W radiator fan motor has been designed with the engine bay architecture of BMW F-Series vehicles in mind, ensuring proper positioning relative to the radiator and compatibility with factory equipment. This allows for an organized installation without the need for modifications to brackets or the electrical system.

Correct fitment for specific BMW generations minimizes the risk of cooling system malfunctions, thereby helping to maintain the powertrain's thermal parameters within the manufacturer's specifications.

Operating Characteristics of the 400W Fan Motor

The 400W power output allows for effective radiator assistance in urban driving conditions, during traffic jams, and under higher engine loads. The motor is constructed to:

• ensure stable fan speeds across various operating temperature ranges,
• maintain adequate airflow through the radiator core,
• limit excessive load on the vehicle's electrical system.

These operating parameters contribute to maintaining a balance between cooling efficiency and the durability of the system components.

Benefits of Using an Original Radiator Fan Motor

Using an original radiator fan motor in BMW F-Series vehicles translates to a range of practical operational benefits:

• Factory-perfect fitment with shrouds, radiator frames, and wiring harnesses,
• predictable interaction with the engine temperature control system,
• adherence to the cooling characteristics specified by the manufacturer.

This allows the cooling system to operate close to its original performance, which is important for both powertrain longevity and driving comfort.

Used Condition and Practical Installation Aspects

This item belongs to the Covers category and is offered as a used part, providing a cost-effective solution while retaining original construction. Before installation, a standard inspection of connectors, sockets, and mechanical seating in the fan frame is recommended to ensure long-term proper operation.

A correctly selected and functional radiator fan motor helps reduce the risk of engine overheating and, consequently, potential costly repairs related to the cooling system.

BMW Covers – Selecting the Right Parts

If you are looking for other BMW covers to match your model, use our dedicated category where you will find a wide selection of body and equipment parts: BMW covers. This will make it easier to assemble a set of components that meet the manufacturer's requirements.

How to Care for a Used Radiator Fan Motor

To extend the lifespan of a used fan motor, it is advisable to regularly clean the area around the radiator of debris and check the condition of hoses and connectors. It is also good practice to periodically verify the fan's operation after the engine has warmed up to detect any potential issues early on.

More practical tips on operating salvaged components can be found in our guide: how to extend the lifespan of used car parts. This is a helpful source of knowledge for planning vehicle maintenance and servicing.