BMW E81 E82 E88 Door Window Lifter Motor Electric Front Right O/S 6978846

BMW E81 E82 E88 Door Window Lifter Motor Electric Front Right O/S is an original component from the Window regulators and motors group, designed for precise operation of the front passenger side window. It ensures stable operation of the window lifting and lowering mechanism, maintaining the comfort and functionality of the electric control in your BMW.

Specifications and technical data

• SKU: 6978846-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6978846
• Substitutable numbers: 6978846, 51336978846, 67627286142, 7286142, 51337165596, 7165596, 67626978846
• Location on the vehicle: Front, Right
• Part type: Window Motor
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The window lifter motor is responsible for driving the mechanism that moves the window in the front right door. This component works with the vehicle's electrical system and controls from the door panel or console, enabling smooth opening and closing of the window during daily use. Precise fitment for the BMW E81, E82, and E88 platform allows for maintaining factory operating parameters of the system without the need for wiring or mounting modifications. As a result, installation is predictable, and the risk of compatibility issues is significantly reduced.

Benefits of using an original lifter motor

Using an original window lifter motor in a BMW provides a number of practical technical benefits:

• maintaining the correct window movement speed and uniform operation throughout the entire travel range,
• proper cooperation with factory comfort controllers and door modules,
• reduced risk of overloading the guide mechanism and cables,
• stable operation of comfort functions, if present in the specific vehicle configuration. For the user, this means more predictable operation, a lower risk of window jamming, and a reduction in the need for further repairs in this area. Choosing such a solution is particularly beneficial for repairs performed on vehicles used on a daily basis.

Installation characteristics and fitment

The motor is designed for installation in the front right door, which simplifies the identification of the correct component during repair. The mounting system and electrical connector are prepared to work with the factory lifter mechanism, allowing for installation without interfering with the door structure. When selecting parts, it is worth paying attention to compliance with manufacturer markings and interchangeable numbers – this component has assigned reference numbers that facilitate verification of compatibility with a specific equipment version. This approach reduces the risk of purchasing the wrong motor and speeds up the service process.

Condition and practical application

The offered motor comes from the used parts group, which allows for economical repair while maintaining the original manufacturer's specification. For many BMW users, this is a reasonable compromise between cost and quality, especially in the case of consumable components related to driving comfort. In practice, such a motor will work well both for typical replacement after a failure and for restoring full door functionality after previous body and paint repairs. Maintaining a functional window mechanism is important not only for convenience but also for proper door closing and cabin sealing.

Matching by numbers and expert knowledge

When selecting components such as a window lifter motor, identification by OEM number or interchangeable numbers is particularly helpful. This allows avoiding mistakes resulting from differences between model years, body versions, or additional equipment. If you want to better understand how to safely choose used drive and electrical components based on manufacturer markings, it is worth checking out the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses practical procedures for selection by VIN and OEM numbers.

BMW Window regulators and motors – expansion and service

If you are planning a comprehensive repair or upgrade of the door and window area in your BMW and need other components from the same group, such as window drives, control modules, or complete guide mechanisms, check the available parts in the BMW Window regulators and motors category.