BMW X5 E39 E53 Sunroof Sliding Roof Drive Unit Motor Actuator 8377939

The BMW E39 X5 E53 Sunroof Motor is an original BMW part designed to drive the sunroof mechanism in select 5 Series E39 and X5 E53 models. A used motor ensures a factory fit, maintaining proper operating parameters and compatibility with the vehicle's electrical system.

Specifications and technical data

• SKU: 8377939
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8377939
• Substitutable numbers: 8381480, 67618377939, 8377939, 6761381480, 51437124906, 7124906
• Category: Other Starters, Alternators, ECUs & Wiring

Application and Compatibility

The BMW E39 X5 E53 Sunroof Motor is designed to work with the factory roof mechanism in BMW 5 Series E39 and X5 E53 models. By retaining its original construction, it ensures:

• proper cooperation with sunroof guides and gears,
• compatibility with factory comfort control,
• adequate torque for the roof mechanism.

This part belongs to the Other category, classifying it as a specialized roof system component dedicated to specific BMW models.

Construction and Technical Characteristics

The sunroof motor is an electric drive responsible for opening, tilting, and closing the roof panel. Its construction features a compact electric motor integrated with a gearbox, enabling:

• stable power transfer to the guide mechanism,
• precise sunroof positioning,
• maintenance of appropriate roof operating speed throughout its range of motion.

Thanks to the use of an original BMW solution, the motor works with factory position sensors and the comfort closing system.

Condition and Benefits of Choosing a Used Motor

The offered part is in used condition, meaning it has been removed from a vehicle and previously operated. This type of part is a cost-effective solution for users who:

• are looking for an original component at a reasonable price,
• want to maintain the vehicle's factory specifications,
• prefer to install a part that is consistent with the original manufacturer's design.

Choosing a used sunroof motor helps reduce repair costs while ensuring proper integration with the mechanical and electrical systems in a BMW E39 or X5 E53.

Why Choose an Original BMW Sunroof Motor

For components responsible for sunroof operation, maintaining proper cooperation with the vehicle's electronics and roof mechanics is crucial. An original BMW motor ensures:

• factory fit with headliner mountings,
• proper interaction with the comfort module and switches,
• adherence to manufacturer-specified operating parameters.

This minimizes the risk of calibration issues, incomplete roof closure, or overloading of the guide mechanism.

Other Products and Guide Materials

If you are also looking for other parts in the Other category for this brand, check out our offer for other parts from the BMW Other category to select additional components for your car in one place.

Want to better understand the differences in construction and manufacturers' approaches to performance and drivetrain systems? See the article comparing sports versions to series models: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. For those interested in using used parts for modifications and repairs, the guide might also be helpful: Best Used Parts for Your Car Tuning.