Mercedes ML W166 Wheel Arch Housing Rear Left N/S Wheel Mud Cover A1668841322

Mercedes ML W166 Wheel Arch Housing Rear Left N/S Wheel Mud Cover is an original body component from the Mud Flaps group, designed for installation in the rear left section of the vehicle. Specifically engineered for the Mercedes ML W166 generation models, it ensures proper wheel arch protection, stable mounting, and compatibility with the factory body geometry.

Specifications and technical data

• SKU: A1668841322
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668841322
• Substitutable numbers: A1668841322, A 166 884 13 22
• Location on the vehicle: Rear, Left
• Category: Splash Guards & Mud Flaps

Purpose and function of the wheel arch housing

The rear left wheel arch housing in the Mercedes ML W166 is responsible for shielding the inner part of the wheel well from water, mud, road salt, and small stones. A correctly selected component for this area:

• reduces the risk of corrosion for suspension and body components,
• protects installations routed within the wheel arch area,
• stabilizes airflow around the wheel, which promotes proper operation of the running gear,
• provides an aesthetic finish to the inner side of the wheel well.

Thanks to its precise fit for the specific Mercedes SUV model, the wheel arch housing works with factory mounting points and requires no structural modifications.

Construction and fitment for Mercedes ML W166

The presented wheel arch housing is designed as a dedicated component for the rear left part of the body, which guarantees proper adhesion to the fender edge and other covers. The construction is adapted to operate in harsh conditions typical for SUV-class vehicles, where wheel arches are exposed to intense contact with road debris.

The appropriate surface shaping facilitates the drainage of water and mud, and also limits the accumulation of contaminants in critical areas. This translates into more predictable suspension operating conditions and a longer service life for metal components in this zone.

Benefits of using an original wheel arch housing

Using an original rear left wheel arch housing in the Mercedes ML W166 provides a number of practical benefits:

• Factory fitment – the component is prepared for original mounting points, which facilitates installation and ensures stable attachment.
• Consistency with body construction – the correct geometry of the wheel well is maintained, which is important for suspension performance and body protection.
• Operational protection – the wheel arch housing limits direct contact of water and contaminants with metal elements, cables, and mounts.
• Aesthetics and order in the wheel area – the wheel well remains covered, which improves the visual perception of the vehicle and facilitates potential service inspections.

Choosing an original component from the Mud Flaps group allows you to maintain compliance with the manufacturer's factory standards, which is important both for daily operation and for the future resale of the vehicle.

Characteristics of the used component

The offered wheel arch housing is a used part, which represents a favorable compromise between quality and repair costs. This type of part allows for the restoration of full functionality to the wheel arch area without the need to invest in a new component. With proper installation, the wheel arch housing retains its protective and functional properties, and the vehicle regains proper coverage of the rear left wheel well.

Extended body protection and additional information

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

To better understand the advantages of using original components and to make informed choices when selecting used body parts, it is worth reading our expert material: OEM quality assurance and safety – why used original car parts are the best choice for your vehicle?.