Mercedes X166 Rear Door Inner Seal Gasket Rail Strip Right O/S A1667352400

Mercedes X166 Rear Door Inner Seal Gasket Rail Strip Right O/S is an original body component designed for installation on the rear right side. Thanks to its factory profile and precise fit for the specific X166 generation, it ensures a tight window guide and stable support for the trim strip, which translates into acoustic comfort, interior protection, and an aesthetic appearance of the side body section.

Specifications and technical data

• SKU: A1667352400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667352400
• Substitutable numbers: A1667352400, A 166 735 24 00
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function in the bodywork

The presented Mercedes X166 Rear Door Inner Seal Gasket Rail Strip Right O/S is a component from the Window seals and strips group, designed specifically for the X166 body type. Mounted in the rear right area of the body, it is responsible for:

• limiting the ingress of water and contaminants into the door interior,
• reducing wind noise in the rear window area,
• stable window guidance during opening and closing,
• aesthetic finishing of the window edge from the interior side.

Thanks to the fitment for the specific body model, proper installation tolerances are maintained, which facilitates service and helps restore the factory operating characteristics of the window mechanism.

Benefits of using an original seal

Choosing an original Mercedes X166 Rear Door Inner Seal Gasket Rail Strip Right O/S allows you to maintain the structural integrity of the door and the predictable behavior of moving parts. Compared to replacements, the factory profile and material hardness promote:

• maintaining proper pressure against the glass along the entire length of the guide,
• reducing rattles and vibrations when driving on uneven surfaces,
• better cooperation with the factory window lifting mechanism,
• maintaining a uniform visual line of all seals in the vehicle.

This solution is particularly beneficial for post-accident repairs or replacing worn components in vehicles operated in varied weather conditions.

Characteristics of the used component

The offered seal is a used component, which in practice means it comes from disassembly and has been verified for installation suitability. This type of part is a good choice when you want to maintain the original specification while optimizing service costs. A used Mercedes X166 Rear Door Inner Seal Gasket Rail Strip Right O/S allows you to restore proper window guidance and tightness in the rear part of the body without the need to resort to more expensive solutions.

Professional use in service and repairs

This component from the Window seals and strips group will work well both in professional body and paint shops, as well as in services specializing in the Mercedes brand. It can be used for:

• door repairs after collisions,
• eliminating leaks in the rear right part of the body,
• renovation of window systems in premium class vehicles,
• restoring factory acoustic comfort in the cabin.

Thanks to the preservation of the original geometry, the installation is predictable, and the final effect is consistent with the manufacturer's factory assumptions.

If you are planning a comprehensive repair or upgrade of the window area in your Mercedes and need other components from the same group, such as additional seals, trim strips, or window guides, check the available parts in the Mercedes window seals and strips category.

If you are also interested in optimizing vehicle operating costs through the conscious use of used components in other car systems, it is worth checking out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.