Audi A4 B8 Boot Liner Cover Trim Panel Rear Right O/S Side 8K9863990

Audi A4 B8 Boot Liner Cover Trim Panel Rear Right O/S Side is an original cargo area trim component designed for installation on the right side of the vehicle's rear section. This carefully engineered lining provides an aesthetic finish to the trunk, protects the bodywork, and helps reduce noise and vibrations. Thanks to its factory-spec fitment, this item from the Linings, decorative strips, and trims category allows you to restore the cohesive look of the trunk interior after repairs or upgrades.

Specifications and technical data

• SKU: 8K9863990
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K9863990
• Substitutable numbers: 8K9863990, 8K9 863 990
• Location on the vehicle: Rear, Right
• Category: Trim

Purpose and function in the vehicle

The presented trunk side trim panel is designed specifically for the rear right section of the Audi A4 B8 generation cargo area. The component serves several key functional and aesthetic purposes:

• covers the inner bodywork in the rear section of the vehicle,
• visually organizes the trunk space, creating a cohesive finish,
• acts as a protective barrier against accidental impacts from transported cargo,
• supports trunk soundproofing by reducing noise transmission into the cabin.

Thanks to its factory shape and mounting points, the trim works in harmony with other trunk interior components, making it easy to maintain the original geometry and ergonomics of the cargo area.

Construction and fitment

The trunk side cover is manufactured as a dedicated trim panel, matched to the lines of the Audi body. The design includes appropriate moldings, openings, and locations for factory clips, which allows for installation at existing mounting points without the need for modifications. This solution facilitates quick service and reduces the risk of improper fitment.

The original origin of the component ensures dimensional compatibility with the factory trunk interior, which is particularly important for post-accident repairs, interior reconstruction after disassembly, or restoring the vehicle to a near-factory condition.

Practical application and benefits of installation

Installing this side trim is recommended in situations where the existing cover is mechanically damaged, deformed, permanently stained, or was removed during previous repairs. Replacing it with an original panel allows you to:

• achieve a visually cohesive trunk without gaps in the lining,
• maintain the functionality of factory mounting points and recesses,
• minimize unwanted resonances and noises from the rear of the body,
• maintain the vehicle's value by using a component consistent with the manufacturer's design.

For users who care about the visual and technical condition of the interior, using an original trunk side trim is a more predictable solution than installing aftermarket replacements with uncertain fitment.

Characteristics of the used component

The offered trim comes from disassembly and is a used part, which in practice means a favorable cost-to-quality ratio while maintaining the manufacturer's original specifications. This type of component is particularly attractive for maintenance repairs, renovations, and projects aimed at restoring vehicles to a functional and well-maintained visual state.

Choosing a used OEM component allows you to reduce costs compared to new parts, while maintaining the correct shape, mountings, and compatibility with other trim panels in the trunk.

Upgrade expansion and additional materials

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

For owners of vehicles from model years similar to the B8 generation who want to consciously plan interior and body renovation using components from disassembly, the article describing practical upgrade scenarios may be helpful – you can find it here: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.