BMW Z4 E85 E86 Door Window Lifter Electric Front Right O/S 7198910

BMW Z4 E85 E86 Door Window Lifter Electric Front Right O/S is an original component from the Window regulators and motors group, designed for the right front window in the BMW Z4 E85/E86 generation roadster and coupe. Its precise construction ensures stable window guidance, correct movement geometry, and comfortable operation using factory switches.

Specifications and technical data

• SKU: 7198910
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7198910
• Substitutable numbers: 51337198910, 7198910, 51217142238, 7142238, 51337013754, 7013754
• Location on the vehicle: Front, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The window lifter mechanism is responsible for the smooth raising and lowering of the right front window in the BMW Z4 E85/E86. The component works with the factory door control system, ensuring proper window movement in the guides and correct sealing when closing the door and engaging the central locking.

Thanks to its perfect fit for the specific Z4 body model, the correct operating geometry is maintained, which reduces the risk of jamming, excessive play, or leaks at the contact point between the window and the seals.

Construction and mounting fitment

The mechanism has been designed as a component dedicated to the right side of the front body section, taking into account the specific door construction of the BMW Z4 E85/E86. The appropriate mounting points allow for installation in factory locations without the need for bodywork modifications or adaptations.

The layout of the arms, cables, and guides is optimized for the limited space inside the door, which facilitates service and subsequent adjustments. The use of original geometry translates into an even distribution of loads during window operation.

Benefits of using an original mechanism

• Compatibility with the factory system – the mechanism works with original BMW switches and electrical wiring.
• Stable window guidance – reduction of vibrations and unwanted play while driving.
• Correct window position relative to seals – helps maintain acoustic tightness and reduce cabin noise.
• Adjustability in accordance with BMW service procedures – simplified setting of the window's end positions.

Using a dedicated mechanism allows for restoring proper window operation after a failure, without compromising on fitment or system performance.

Characteristics of the used component

The offered mechanism comes from the secondary market, which allows for combining cost savings with the preservation of the original BMW design. The used component retains its factory geometry and operating method, while simultaneously providing an attractive cost alternative to new parts.

For many BMW Z4 E85/E86 users, choosing such a solution is a reasonable compromise between durability and budget, especially during comprehensive door repairs or when replacing multiple window system components.

Mounting zone and body integration

The mechanism is intended for installation in the front right door, where it works with the window, seals, lock, and door upholstery. Proper installation and adjustment affect:

• smoothness of window movement throughout the full range,
• correct closing when the door is shut,
• reduction of stress on the glass and guide elements.

Correct adjustment of the mechanism is especially important in cars with frameless windows, such as the BMW Z4, where positioning precision has a direct impact on user comfort.

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

If you are considering a wider range of service work on your car and want to better understand the specifics of the second-hand parts market, you will find practical tips in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, selecting components by OEM numbers and the economic aspects of such repairs.