Mercedes X166 Rear Right O/S Door Pillar Trim Cover A1667300419

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes X166 Rear Right O/S Door Pillar Trim Cover is an original body component from the Doors and door panels group, designed for installation on the rear right side. It provides an aesthetic finish to the door edge and ensures stable guidance for seals and trim elements, which contributes to a consistent look of the side body and proper door fitment.

Specifications and technical data

• SKU: A1667300419
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667300419
• Substitutable numbers: A1667300419, A 166 730 04 19
• Location on the vehicle: Rear, Right
• Category: Doors & Door Skins

Purpose and vehicle placement

The presented pillar trim is dedicated to installation in the rear right part of the body, in the passenger door area. The component operates in a zone subject to intensive door opening and closing, which is why its correct fit is important for:

• maintaining the proper geometry of the door edge,
• stable mounting of seals and moldings,
• reducing unwanted vibrations and rattles while driving.

Thanks to its factory design, the cover works in harmony with the X166 body structure, maintaining the side line characteristic of this model.

Construction and function of the body component

The Mercedes X166 Rear Right O/S Door Pillar Trim Cover serves both protective and finishing functions. It has been designed to:

• protect critical sections of the pillar structure from mechanical damage,
• provide a smooth, aesthetic surface in the contact zone between the door and the body,
• facilitate the correct routing of seals and other finishing elements.

The original Mercedes origin ensures that factory mounting points are maintained, which facilitates installation and avoids the need for structural modifications.

Benefits of using the original pillar trim

Using the original pillar trim in a Mercedes X166 brings a number of practical benefits in daily operation:

• Precise fit – the component is matched to the body geometry, which reduces the risk of leaks and unwanted noises.
• Consistent aesthetics of the side body – proper finishing of the door edge influences the visual continuity of the car's lines.
• Stable mounting of door trim – the cover serves as a base for seals and moldings, which improves acoustic comfort inside the vehicle.

This solution is particularly recommended for post-accident repairs, replacing damaged body parts, or restoring the vehicle to its factory appearance.

Condition and use in repairs

The component comes from the Doors and door panels category and is offered as a used part, which allows for an economical yet technically sound repair of the side body zone. Choosing an original, used pillar trim is often a beneficial solution in situations where you want to maintain the factory structure without having to use replacements with uncertain fitment.

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

Additional technical support

When planning broader service work, it is worth considering other key vehicle components. If you are considering repairing or replacing transmission system components and want to better assess the cost-effectiveness of purchasing used parts, the following article may be helpful: Used gearbox – when is it worth it and what you need to remember. It will allow you to better plan your repair budget and approach the selection of components consciously.