Mercedes W177 Wheel Arch Rear Right O/S Wheelhouse Trim Cover A1776901900

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Wheel Arch Rear Right O/S Wheelhouse Trim Cover is an original body component designed to protect the rear right section of the wheel arch in W177 series models. The robust construction of this cover effectively shields the interior of the wheel arch from dirt, moisture, and minor mechanical damage, improving the durability of suspension components and the aesthetics of the bodywork. Thanks to the factory fitment, installation is precise and does not require any modifications to the mounting points.

Specifications and technical data

• SKU: A1776901900-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1776901900
• Substitutable numbers: A1776901900, A 177 690 19 00
• Location on the vehicle: Rear, Right
• Category: Splash Guards & Mud Flaps

Purpose and function of the wheel arch cover

The presented wheel arch cover has been designed specifically for the rear right side of the body in the Mercedes W177 class. The component operates in a demanding environment – in the immediate vicinity of the wheel, where it is exposed to intense water, mud, road salt, and small stones. The purpose of the cover is to:

• reduce corrosion of structural body elements in the wheel arch area,
• protect cables, wiring, and suspension mounts from dirt,
• stabilize airflow within the wheel arch, which promotes even drying of the space,
• maintain an orderly, aesthetic appearance of the wheel well.

Thanks to the correct profile and fitment for the specific model, the wheel arch cover remains stable even at high speeds and on uneven surfaces.

Construction and fitment for Mercedes W177

The wheel arch cover has been manufactured as a component dedicated to the W177 platform, which means that its shape, mounting points, and geometry are consistent with the manufacturer's factory requirements. In practice, this translates into:

• secure fitment with the fender edge and internal body components,
• proper adhesion to the body without unwanted gaps or vibrations,
• easier installation and removal during suspension service or body repairs.

The component is intended for installation on the right side of the rear axle, which is important when selecting parts – the geometry of the left and right sides differs, which is why selecting the correct placement on the vehicle is crucial for proper installation.

Performance characteristics and installation benefits

The wheel arch cover in this model plays an important operational role, affecting both the durability and comfort of using the vehicle. The most important benefits of using this component include:

• reduced risk of mud and moisture accumulation in the nooks and crannies of the body,
• better anti-corrosion protection in the rear wheel arch area,
• reduction of noise generated by striking stones and debris,
• orderly routing of cables and mounts within the wheel well.

The product comes from a used vehicle, which allows for a favorable cost-to-quality ratio while maintaining the original Mercedes specification regarding shape and mounts.

Selection, compatibility, and service application

When selecting a wheel arch cover for a Mercedes W177, it is crucial to pay attention to the installation side (rear, right) and compatibility with the vehicle's body. This component will work well both for standard replacement of a worn or damaged cover and during post-accident repairs where it is necessary to restore factory wheel arch protection. In body shops and suspension service centers, using an original cover facilitates:

• maintaining correct body gaps and lines,
• trouble-free service access after removal and reinstallation,
• maintaining compliance with the manufacturer's technical documentation.

Thanks to this, the Mercedes W177 retains its factory operational properties in the rear wheel arch area, and the risk of subsequent problems with corrosion or noise is minimized.

Expanding body protection in your Mercedes

If you are planning a comprehensive repair or upgrade of the wheel arch zone in your Mercedes and need other components from the same group, such as additional covers, protective profiles, or splash guards, check out the available parts in the Mercedes Mud Flaps category.

To better understand the impact of underbody and wheel arch protection on the durability of the powertrain and the entire vehicle, it is worth reading the service guide regarding the cooling system and vehicle operation – you will find practical tips in the article Engine cooling system – overheating, repair, and used radiators.