Mercedes Vito W639 Rear Bumper Trim Side Corner Cover Left N/S A6398801271

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes Vito W639 Rear Bumper Trim Side Corner Cover Left N/S is an original body component from the Bumpers and reinforcements category, designed for installation on the rear left side of the vehicle. Its precise fit to the body lines makes it easy to restore the factory appearance and correct bumper geometry after operational damage.

Specifications and technical data

• SKU: A6398801271
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398801271
• Substitutable numbers: A6398801271, A 639 880 12 71
• Location on the vehicle: Rear, Left
• Category: Bumpers & Reinforcements

Purpose and function of the bumper corner

The rear left bumper corner for the Mercedes Vito W639 is responsible for covering the rear-side part of the body and providing an aesthetic finish to the bumper edge. This component:

• closes the rear bumper assembly on the left side,
• stabilizes the outer part of the panel in the corner zone,
• helps maintain correct gaps between the bumper and the side panel.

Thanks to its proper profile, the corner works with factory mounting points, which promotes secure seating and reduces the risk of looseness and unwanted vibrations while driving.

Compatibility and body fitment

The presented corner has been designed specifically for the Mercedes Vito W639 body structure, taking into account the characteristic geometry of the rear of the vehicle. Its placement in the rear – left side zone allows for clear installation identification and minimizes the risk of error when selecting the part.

Its original Mercedes origin helps maintain a consistent stylistic line, as well as proper cooperation with adjacent bumper and side panel components. This is a particularly beneficial solution for post-accident repairs, where both appearance and correct component fitment are important.

Performance characteristics of the used component

As an aftermarket part, the rear left bumper corner offers a favorable compromise between repair costs and maintaining the manufacturer's original specifications. A used component allows you to:

• reduce expenses while maintaining factory geometry,
• maintain consistency with the body's stylistic line,
• preserve compatibility with factory brackets and mounts.

This is a practical solution for body and paint shops as well as individual users who want to restore the vehicle to full visual and functional efficiency without having to resort to replacements with uncertain fitment.

Benefits of using an original Mercedes corner

Using a component from the Mercedes brand helps maintain the structural integrity of the entire bumper system. Key advantages include:

• factory fitment for the Vito W639 body in the rear left zone,
• predictable behavior during installation and operation,
• easier maintenance of correct gaps between body components.

Thanks to this, the repair process is more predictable, and the final result is closer to the vehicle's original specification, which is important for both aesthetic and functional reasons.

Expanding the repair – Mercedes Bumpers and reinforcements

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

Technical support and part selection by numbers

When selecting body components, it is worth using the manufacturer's markings and reference numbers, which facilitates verification of compatibility with a specific vehicle version. In the case of more advanced repairs, including electronic components, an approach based on analyzing OEM and reference numbers can be helpful, in line with the practice used for control modules and sensors. This topic is discussed in more detail in the Global Parts guide – Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which shows how to safely use parts from the secondary market.