BMW E81 E87 E90 E91 E92 Cooling Radiator Blower Fan Motor 300W 7801993

BMW E81 E87 E90 E91 E92 Cooling Radiator Blower Fan Motor 300W is an original component from the Blower motors and wheels group, designed for cooling and ventilation systems in BMW cars with diesel engines. This used OEM component ensures proper operating parameters of the system, stable cooling, and correct air circulation in the engine compartment and the vehicle interior.

Specifications and technical data

• SKU: 7801993-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7801993
• Substitutable numbers: 17427801993, 7801993, 17427788905, 7788905, 17117788903, 7788903, 17517798788, 7798788, 3296399, 64539169526645091697896453920629664536930039, 9169526, 9169789, 9206296, 6930039, 0130303941, 7561711.9, 7561711, 1137328144
• Fuel type: Diesel
• Category: HVAC Blower Motor & Wheel

Purpose and function in the cooling system

The 300W fan motor is responsible for driving the blower rotor, which supports the cooling and ventilation system in BMW E81, E87, E90, E91, and E92 series vehicles with Diesel engines. A properly functioning fan drive stabilizes the engine's operating temperature, reduces the risk of overheating, and supports the efficient operation of the air conditioning and heating systems.

In vehicles with a diesel engine, thermal loads are higher, which is why a functional blower motor is crucial for maintaining the appropriate temperature of the coolant and the air flowing through the radiator. Replacing a worn-out component with an original fan motor allows for restoring the stable operation of the entire system.

Benefits of using an original fan motor

Using an original BMW component from the Blower motors and wheels category ensures a perfect fit for factory mounts, correct electrical parameters, and compatibility with the vehicle's electrical system. As a result:

• correct cooling efficiency is maintained across the full range of engine loads,
• stable operation of the air conditioning and heating system is preserved,
• the risk of failures resulting from engine overheating is reduced,
• installation is carried out without the need for modifications to the wiring harness or mounts.

A used OEM component is a reasonable cost-effective choice while maintaining proper build quality and compliance with factory specifications. For BMW diesel engines, it is particularly important that the fan drive operates stably and with an appropriate power reserve, which this motor model provides.

Selection by numbers and compatibility

The 300W fan motor was designed specifically for selected BMW E-series models with diesel engines, which is why it is worth using the OEM number and interchangeable numbers visible in the technical specification when selecting. This allows for precise verification of compatibility with a specific body version, model year, and equipment variant.

Before purchasing, it is recommended to compare the data from the rating plate or the vehicle's service documentation with the information in the "Specification and technical data" section. This selection method minimizes the risk of error and speeds up the assembly process, as a properly selected fan motor fits without additional modifications.

Condition, assembly, and operation

The offered fan motor is a used component, which in practice means a favorable price-to-functionality ratio while maintaining the original BMW design. Replacing a worn-out blower drive with a functional component allows for the elimination of typical symptoms of damage, such as operating noise, a drop in cooling efficiency, or irregular fan activation.

During assembly, it is worth paying attention to proper seating in the mounts, correct connection of electrical connectors, and the cleanliness of sockets and wires. A properly installed fan motor operates stably, without excessive vibrations, which translates into a longer service life for the entire cooling system.

Technical support and guide materials

If you want to better understand how to safely select used electrically driven components based on OEM numbers and vehicle data, the expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. You will find practical information on verifying parts, selection procedures, and optimizing repair costs.

If you are planning a comprehensive repair or upgrade of the ventilation and cooling system area in your BMW and need other elements from the same group, such as additional blower motors, fan wheels, or complete drive assemblies, check the available parts in the BMW Blower motors and wheels category.