Mercedes W900 W906 Cargo Inner Sill Trim Cover Lid Cap Rear Trunk A9066860039

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W900 W906 Cargo Inner Sill Trim Cover Lid Cap Rear Trunk are original trim components designed for the rear cargo area, specifically engineered for Mercedes vehicles. Thanks to their factory-fit design, they provide practical protection for the loading edge and an aesthetic finish for the trunk sill area, improving comfort during daily use.

Specifications and technical data

• SKU: A9066860039-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9066860039
• Substitutable numbers: A9066860039, A 906 686 00 39
• Location on the vehicle: Rear
• Category: Trim

Purpose and function of the trunk sill trim

The rear trunk sill trim for W900/W906 series models is responsible for protecting the rear edge of the cargo floor against scratches, dents, and abrasions that occur during loading and unloading. The component is mounted in the rear part of the vehicle, in the trunk sill area, where the bodywork is particularly exposed to mechanical damage.

Using original trim pieces helps maintain stable support for transported cargo, reduces paint wear, and preserves a consistent look for the interior of the cargo space. This is a technical solution that effectively extends the durability of the loading zone and makes it easier to keep the vehicle in good visual condition.

Construction and fitment for Mercedes bodywork

The element belongs to the Cladding, decorative strips, and trim group, meaning it serves both a protective and aesthetic function. The geometry of the trim is adapted to the factory shape of the rear sill in Mercedes W900/W906 series vehicles, which allows for precise alignment with existing trim panels.

The properly shaped working surface facilitates sliding cargo over the sill while simultaneously reducing the risk of accidental damage to the body edge. The use of an original mounting solution allows for stable seating of the trim without the need for modifications to the vehicle's structure.

Benefits of using original Mercedes components

Choosing original trunk sill trim for a Mercedes translates into a number of practical benefits in daily operation:

• maintaining a consistent aesthetic of the rear body and cargo space,
• better protection of the loading edge against mechanical damage,
• secure fitment to factory mounting points,
• easier maintenance of the trunk area cleanliness.

For commercial and delivery vehicles, where the trunk sill is heavily used, the application of such elements significantly reduces the rate of wear on critical parts of the body. It is a practical solution for users who care about maintaining the functionality and appearance of the vehicle at a stable level.

Characteristics of the used component

The offered rear trunk sill trim pieces are salvaged, meaning they are original Mercedes components that have been previously used. These types of elements retain their factory geometry and mounting method, while simultaneously providing a cost-effective alternative to new parts.

For workshops, fleets, and individual users, this is a solution that allows for a technically correct repair or replacement of missing equipment without the need to use aftermarket parts with uncertain fitment. A used trim component in many cases fully meets functional requirements, providing adequate sill protection and an aesthetic finish for the rear of the vehicle.

Application in the rear zone of the vehicle

The trim pieces are intended for installation in the rear part of the body, in the trunk sill area. This is a location particularly exposed to contact with transported cargo, transport trolleys, or workshop equipment. A properly selected trim element reduces the risk of corrosion and damage that could require subsequent body and paint repairs.

In vehicles used intensively – e.g., in local transport, mobile services, or city deliveries – the use of such trim is a practical way to maintain the functionality of the rear loading zone and improve the ergonomics of working with the vehicle.

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

For users interested in a broader approach to vehicle operation in demanding temperature conditions, practical tips regarding the cooling system may also be useful – you can find them in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.