Mercedes W447 Rear Hub Cover Arch Splash Guard Right O/S A4478890400

The Rear Right Wheel Arch Cover (rear hub cover arch splash guard) for Mercedes W447 is a precisely fitted body component that protects the rear right wheel arch from water, mud, and minor debris. As an original Mercedes component from the Mudguards category, it ensures proper protection of the wheel area and stable mounting to the body. A used part allows for an economical yet technically correct repair of the vehicle without compromising on fit.

Specifications and technical data

• SKU: A4478890400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4478890400
• Substitutable numbers: A4478890400, A 447 889 04 00
• Location on the vehicle: Rear, Right
• Part type: Splash Guard
• Category: Splash Guards & Mud Flaps

Purpose and Technical Function

The rear right wheel arch cover for the Mercedes V-Class / Vito W447 generation is designed as a protective element in the wheel area. Its function is to:

• limit the ingress of water, mud, and road salt onto suspension and body components,
• reduce the risk of accelerated corrosion in the rear right wheel arch area,
• provide stable guidance for airflow and debris thrown by the tire,
• maintain the correct geometry of the wheel arch assembly according to the manufacturer's design.

Thanks to its factory geometry, the cover works in conjunction with other wheel arch assembly elements, contributing to the vehicle's structural and aesthetic integrity.

Vehicle Fitment and Installation

The presented cover is intended for installation in the rear right part of the body in Mercedes W447 models. Its placement on the vehicle is clearly defined, which simplifies the selection of the correct part when replacing due to collision, mechanical damage, or corrosion.

The original design ensures:

• alignment of mounting points with factory holes in the body,
• proper fit to the wheel arch edge,
• possibility of installation using standard fasteners specified by the manufacturer.

This makes the replacement process predictable for workshops and does not require modifications or forcing the part into place.

Characteristics of a Used Part

The wheel arch cover is a dismantled part, allowing for the retention of the original Mercedes specification at a lower cost compared to a new part. A used component is a good solution when compliance with the factory design and a rational repair budget are priorities.

For wheel arch components, it is particularly important to maintain:

• the original shape and structural rigidity,
• correct edge alignment with the tire and body,
• the possibility of trouble-free installation without interfering with the bodywork.

An original cover meets these requirements, which translates to predictable vehicle behavior in daily use.

Practical Application in Service

Replacement of the rear right wheel arch cover is recommended after mechanical damage (e.g., impact with an obstacle by the wheel, side collision) or after detecting cracks and material loss. The absence of a complete cover can lead to:

• increased soiling of suspension and braking system components,
• accelerated wear of anti-corrosion coatings,
• accumulation of mud and moisture in the wheel arch area.

Using an original cover allows for the restoration of proper operating conditions in the rear right part of the body, which is important for both vehicle durability and user comfort.

Related Parts and Additional Information

If you are planning a comprehensive repair or upgrade of the wheel arch area in your Mercedes and need other parts from the same group, such as additional covers, mudguards, or protective panels, check the available parts in the Mercedes Mudguards category.

When selecting used body components, including wheel arch covers, it is worth knowing the general principles of selecting parts from the secondary market and the economic benefits of such a choice – this is discussed in more detail in the guide Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which clarifies the most important issues related to purchasing used components.