BMW F20 Rear Window Guide Rail Gasket Rubber Seal Door Right O/S 7240840

BMW F20 Window Seal Guide Rear Right is a precise component from the Doors and Door Panels category, designed for the rear right window in the BMW F20 body style. It is responsible for stable window guidance and a tight seal, which translates to acoustic comfort and proper operation of the window lifting mechanism.

Specifications and technical data

• SKU: 7240840
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7240840
• Substitutable numbers: 51347240840, 7240840
• Location on the vehicle: Rear, Right
• Category: Doors & Door Skins

Intended Use and Function of the Component

The rear right door window seal guide has been specifically designed for the BMW F20 body, maintaining factory assembly tolerances. It is responsible for:

• guiding the window vertically during opening and closing,
• maintaining proper pressure of the seal against the window,
• reducing window vibrations and play during driving,
• protecting the door interior from excessive moisture and dirt ingress.

Thanks to its specific placement on the vehicle (rear, right side), the component works with the factory window lifting mechanism and door structure without requiring modifications.

Compatibility and Fitment for BMW F20

The guide integrated with the seal is dedicated to the rear right door wing in the BMW F20, ensuring proper fitment with the door frame and window. The appropriate geometry of the seal profile and the guide shape allow for maintaining:

• correct window contact line with the seal,
• stable window operation throughout its full range of motion,
• compatibility with original mounting points in the door.

Such a fitment reduces the risk of leaks, rattles, or window jamming, which often occur with components not intended for a specific model.

Characteristics of a Used Component

The offered guide with seal is a used part, sourced from disassembly, which allows for maintaining the original BMW construction specification. In practice, this means:

• retention of the factory seal and guide profile,
• compatibility with original door mountings,
• possibility of installation as a replacement for a damaged part without altering the door structure.

A used component is a good choice for post-accident repairs, replacing a worn seal, or restoring full window mechanism functionality within a reasonable budget.

Benefits of Installing a Window Seal Guide

The installation of the correct seal guide in the rear right door of the BMW F20 affects several key areas of vehicle operation:

• Acoustic Comfort – reduction of air noise and whistling at higher speeds due to improved window sealing.
• Door Interior Protection – proper moisture drainage and reduced risk of water accumulation within the door structure.
• Smooth Window Operation – stable window guidance reduces the load on the lifting mechanism and the risk of premature wear.
• Aesthetics and Ergonomics – proper window positioning in the door frame contributes to the visual coherence of the body lines and user comfort.

BMW Doors and Door Panels – Selecting the Right Components

If you are looking for other elements from the Doors and Door Panels category dedicated to this brand, check out the BMW doors and door panels available in our store to select components that match your car structurally and visually.

More About Using Used Parts

Do you want to better understand how to consciously use used body and equipment parts when upgrading or repairing your car? Read the article Best Used Parts for Tuning Your Car, where you will find practical tips on selecting and evaluating used components.