Mercedes X166 Rear Quarter Window Stip Seal Gasket Chrome Right O/S A1666905801

Mercedes X166 Rear Quarter Window Stip Seal Gasket Chrome Right O/S is an original body component from the Claddings, decorative strips and trims group, designed for installation on the right side of the rear part of the vehicle. The chrome finish ensures a consistent look with factory body details, and the dedicated fit for the X166 series facilitates installation and reduces the risk of leaks.

Specifications and technical data

• SKU: A1666905801
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666905801
• Substitutable numbers: A1666905801, A 166 690 58 01
• Location on the vehicle: Rear, Right
• Color: Chrome
• Category: Trim

Purpose and function of the component

The described Mercedes X166 Rear Quarter Window Stip Seal Gasket Chrome Right O/S has been designed specifically for the Mercedes X166 body, intended for the rear, right side of the vehicle. It is responsible for properly sealing the contact point between the window and the decorative strip, as well as for the stable guidance of the decorative profile along the body edge.

Thanks to its precise shape and factory profile, the component helps limit the ingress of water and contaminants around the window frame, while maintaining an even line of the chrome strip, which is important for both aesthetics and the durability of the entire connection.

Exterior appearance and fitment

The chrome finish of the strip working with this seal allows for maintaining the characteristic, elegant look of the side of the Mercedes body. The Chrome color is consistent with the factory styling of the X166 series, thanks to which the component harmoniously blends with other decorative details.

The placement on the vehicle on the rear, right side ensures proper fitment with the window and bodywork in this specific area. The design intended for this mounting position facilitates the correct seating of the seal and minimizes the need for additional adjustments during bodywork and workshop operations.

Technical characteristics and installation

As a component from the Claddings, decorative strips and trims group, the seal works with the factory chrome strip, creating a complete finish for the rear quarter window. The seal profile is prepared for installation at the original mounting points, which promotes maintaining tightness and proper pressure against the surface of the window and the body.

The product is used, which in practice means that it comes from vehicle dismantling and may show signs of wear typical for body components, while maintaining the functionality required for further use. This type of part is particularly useful for post-accident repairs, replacing damaged strips, or restoring the factory look of the side body zone.

Practical application and benefits

Using the original Mercedes X166 Rear Quarter Window Stip Seal Gasket Chrome Right O/S allows you to:

• maintain a consistent look of the side body line while preserving the factory chrome accent,
• reduce the risk of leaks in the rear quarter window area,
• maintain proper guidance and stability of the decorative strip,
• facilitate bodywork repairs and component replacements after collisions or mechanical damage.

Thanks to the use of an original component dedicated to a specific model, the installation proceeds in a predictable manner, and the final effect is close to the factory execution, which is important for both private users and workshops specializing in the Mercedes brand.

Expanding the Mercedes body configuration

If you are planning a comprehensive repair or upgrade of the side body zone in your Mercedes and need other components from the same group, such as covers, overlays, or additional strips, check the available parts in the Claddings, decorative strips and trims Mercedes category.

For users interested in deepening their knowledge on selecting components by catalog numbers as well as principles of diagnostics and operation of vehicle subassemblies, the guide article Fuel system – injectors, pumps and fuel tank: maintenance and regeneration, which discusses practical aspects of working with OEM numbers and service procedures, may be helpful.