Mercedes W177 Front Door Window Trim Seal Strip Right O/S High Gloss A1777254400

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Front Door Window Trim Seal Strip Right O/S High Gloss is a precisely fitted body component from the Doors and door panels category, designed for installation on the passenger side. It is responsible for guiding the window securely and providing an aesthetic finish to the door edge, improving both the acoustic comfort and the visual appeal of the vehicle. This used, original component allows for a technically correct replacement of a worn or damaged trim without interfering with the door structure.

Specifications and technical data

• SKU: A1777254400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777254400
• Substitutable numbers: A1777254400, A 177 725 44 00
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Purpose and function of the component

The described window trim seal strip is designed for installation on the front right door of the Mercedes W177 body style. Its functions include:

• guiding the window in the correct position relative to the door frame,
• limiting the ingress of water and contaminants into the door interior,
• reducing wind noise at higher speeds,
• protecting the window edge and paintwork from minor mechanical damage.

Thanks to its factory profile, the trim works seamlessly with the window lifting mechanism without causing additional resistance or stress, which promotes a longer service life for the window regulator.

High gloss finish

The component features a high gloss finish, characteristic of versions with a more premium appearance. This type of surface:

• emphasizes the side line of the body and visually "closes" the window outline,
• blends better with chrome or painted body details,
• maintains a consistent look with other trims on the vehicle when properly maintained.

Replacing a damaged or dull trim with an original component of the same finish allows you to maintain the uniform stylistic character of the entire side of the vehicle.

Benefits of using an original door trim

Using an original window trim seal strip on the front right door provides a number of practical benefits:

• Factory fitment – the correct geometry and length of the component facilitate installation and guarantee proper adhesion to the window and door panel.
• Stable window operation – the properly shaped guide channel reduces play and vibration of the window while driving.
• Better door area sealing – proper seal adhesion supports acoustic comfort and reduces the risk of moisture inside the door.
• Visual consistency – maintaining the same type of trim on both sides of the vehicle enhances the aesthetics of the entire bodywork.

Condition and service application

The component comes from a used vehicle, making it a sensible choice for accident repairs, replacement due to corrosion, or restoring the factory look of the doors. In practice, such a trim is often used:

• after replacing a door or window, when the original seal has become deformed,
• when eliminating excessive noise in the area of the front right door,
• during the reconstruction of the side part of the body after a collision.

Thanks to the original design, installation is carried out at factory mounting points, without the need for bodywork modifications.

Complementary Mercedes door components

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as panels, reinforcements, or additional trims, check out the available parts in the Mercedes Doors and door panels category.