Mercedes W164 Door Trim Cover B Pillar Strip Rear Right O/S Trim A1646903887

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W164 Door Trim Cover B Pillar Strip Rear Right O/S Trim is an original body component from the Doors and door panels category, designed for installation on the rear right side of the vehicle. The high-gloss black finish helps restore the cohesive look of the side body line while maintaining the factory character of the Mercedes vehicle.

Specifications and technical data

• SKU: A1646903887
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646903887
• Substitutable numbers: A1646903887, A 164 690 38 87
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Doors & Door Skins

Purpose and function of the component

The described B-pillar cover is dedicated to the rear right side of the body in W164 series models and is an integral part of the door assembly. This element is responsible for the aesthetic finish of the area between the doors, as well as for protecting the pillar structure from external factors. Thanks to its precise fit to the Mercedes body geometry, it ensures stable mounting and proper adhesion to adjacent door panels.

Surface finish and color

The cover is finished in high-gloss black, which is a characteristic finish for many Mercedes W164 styling configurations. This type of paintwork blends well with both light and dark body colors, emphasizing the window line and giving the side of the car a cohesive, orderly appearance. The smooth, glossy surface makes it easy to keep the element clean and allows for the hassle-free use of standard paint care products.

Mounting parameters and fitment

The B-pillar cover has been designed specifically for use on the rear right side of the vehicle, which eliminates the need for any modifications or adjustments. The design is based on factory mounting points, ensuring that the gap lines and surface continuity between the doors and the pillar are maintained after proper installation. This solution is particularly important for post-accident repairs and when replacing damaged body parts, where compliance with factory specifications is essential.

Characteristics of the used component

The offered cover is a used part, which in practice means it comes from vehicle dismantling and may show signs of normal wear. Such components are often chosen for repairs where the priority is to maintain the original structure and body geometry while reducing costs compared to new panels. A used body part often allows for better fitment than non-original replacements, which is significant both visually and functionally.

Application in body repairs and door area expansion

The high-gloss black B-pillar cover is suitable for replacing damaged or scratched panels in the door area, as well as for reconstructing the side of the body after a collision. This element is important from an aesthetic point of view – it is responsible for visually closing the window line and providing a harmonious transition between the doors and the pillar. Combined with other door panels, it allows for restoring the cohesive look of the entire side section of the vehicle.

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

For drivers interested in comparing technical solutions used in different brands and segments, including sports versions of models, an article describing the differences in engine, brake, and chassis construction may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.