Mercedes ML 350 W166 B Pillar Cover Right O/S Top Panel Trim Black A1666900425

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes ML 350 W166 B Pillar Cover Right O/S Top Panel Trim Black is an original body trim component, belonging to the Claddings, decorative strips, and trims category. Designed specifically for the right side of the vehicle, it ensures a cohesive look for the side body and a solid finish for the area between the front and rear doors. This is a practical solution for users who want to restore the aesthetics and functionality of the factory finish in their Mercedes.

Specifications and technical data

• SKU: A1666900425
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666900425
• Substitutable numbers: A1666900425, A 166 690 04 25, A1666904001, A 166 690 40 01
• Location on the vehicle: Right
• Color: Black
• Category: Trim

Purpose and function of the component

The presented Mercedes ML 350 W166 B Pillar Cover Right O/S Top Panel Trim Black is dedicated to the Mercedes ML 350 W166 generation model and is mounted on the right side of the body. This component is responsible for aesthetically covering the pillar structure while helping to streamline the vehicle's side profile, which is important for both visual and practical reasons. The black finish allows for harmonious matching with most body styling configurations and facilitates integration with other claddings and decorative strips.

Construction and body fitment

The cover has been designed as a component matched to the geometry of the B-pillar in the Mercedes ML 350 W166, ensuring that it maintains factory lines and gaps after proper installation. Precise profiling facilitates assembly and reduces the risk of improper fitment with adjacent door panels and other claddings. The black surface ensures a consistent look with other side trim elements, which is essential for post-accident repairs or replacing individual panels.

Condition, origin, and benefits of use

The component comes from disassembly and is offered as a used original Mercedes part, which means it retains factory assembly specifications and compatibility with the body structure. Choosing an original B-pillar cover reduces the risk of fitment issues typical of universal aftermarket replacements. It is a practical solution for bodywork repairs, replacing damaged claddings, or restoring the vehicle to a near-factory condition.

Use in repairs and upgrades

The right-side B-pillar top cover is suitable for both local post-collision repairs and comprehensive restoration of the side body section. It can be used in situations where the existing component is cracked, deformed, damaged, or shows signs of heavy wear. Precise fitment to the pillar structure facilitates workshop work and shortens installation time, which translates into more efficient repair completion.

Support for the circular economy

Choosing a used B-pillar cover is not only a cost-saving measure but also real support for a sustainable approach to vehicle maintenance. Reusing functional body components reduces the demand for new parts and decreases waste. If you want to better understand how conscious selection of dismantled parts affects the environment and car maintenance costs, check out the article Circular economy in your garage – how choosing used parts from disassembly really supports environmental protection and your wallet?.

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