BMW E90 E91 Wheel Arch Housing M Sport Front Right O/S Bottom Cover 8040102

BMW E90 E91 Wheel Arch Housing M Sport Front Right O/S Bottom Cover is an original body component from the Mudflaps group, designed for the front right wheel arch area in 3 Series models with the M Sport package. It provides effective protection for the wheel zone against water, mud, and debris, supporting the proper operation of suspension components and maintaining the factory body geometry.

Specifications and technical data

• SKU: 8040102-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8040102
• Substitutable numbers: 51718040102, 8040102, 51714789192, 4789192
• Location on the vehicle: Front, Right
• Category: Splash Guards & Mud Flaps

Purpose and function of the M Sport wheel arch housing

The front right wheel arch housing in the M Sport version has been designed specifically for BMW 3 Series E90/E91 models with an extended, sporty bumper. This component is responsible for directing airflow and draining water and dirt away from the wheel zone, which reduces the risk of corrosion and mechanical damage to the bodywork, bumper mounts, and equipment located in the front part of the vehicle.

Thanks to its fitment for a specific location on the vehicle – front, right side – the wheel arch housing works with factory mounting points, which facilitates service and allows for maintaining the structural integrity of the entire front right side of the car.

Construction and fitment for BMW E90/E91

The offered wheel arch housing is a structural component prepared for factory BMW mounts, which translates into a precise fit with the M Sport bumper, fender, and bottom covers. The properly shaped surface of the wheel arch housing helps in:

• protecting the inner part of the bodywork against water, salt, and small stones,
• stable routing of cables and components mounted within the wheel arch area,
• maintaining proper airflow in the wheel zone.

Such fitment is particularly important in cars with the M package, where the geometry of the bumper and wheel arch differs from standard versions, and the correct shape of the cover affects the appearance and functionality of the front part of the vehicle.

Condition, origin, and benefits of using a used part

The item comes from the BMW group and is offered as a used part, which allows for combining original fitment with a more cost-effective repair compared to a new component. A used wheel arch housing is a good solution for post-accident repairs, replacing a damaged cover after contact with an obstacle, or restoring the car to its factory M Sport specification.

Using an original M Sport wheel arch housing helps maintain a consistent body appearance, proper alignment of the bumper and fender edges, and reduces the risk of mounting problems typical of aftermarket replacements with inferior geometry.

Mounting zone and the importance of a correct cover

The placement on the vehicle – front right wheel arch – means that the component operates in a zone particularly exposed to dirt and impacts. A properly selected cover:

• protects electrical harnesses, suspension elements, and the bodywork against direct exposure to external factors,
• limits the accumulation of mud and moisture in the corners of the wheel arch,
• supports the maintenance of proper aerodynamics in the front part of the vehicle.

Replacing a damaged or missing wheel arch housing with the correct component dedicated to the M Sport package is important both from the point of view of technical protection and the aesthetics of the entire front right side of the BMW E90/E91.

Compatibility, reference numbers, and part selection

The offered wheel arch housing has a dedicated OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific equipment version and vehicle year. Before purchasing, it is worth comparing the markings with the currently installed element or service documentation to ensure that the cover will work properly with the M Sport bumper and other components in the front right wheel zone.

If you are planning a comprehensive repair or upgrade of the wheel arch protection zone around the wheels in your BMW and need other elements from the same group, such as wheel arch liners, mudflap extensions, or additional splash guards, check the available parts in the BMW Mudflaps category.

Support in choosing used parts

When selecting a used wheel arch housing for a BMW with the M package, it is worth paying attention to the compatibility of the body version, mounting zone, and reference numbers. For those planning broader modifications or repairs using second-hand parts, a guide describing typical pitfalls when buying tuning and replacement components may be helpful – you can find it in the article Buying used car parts • Most common mistakes when choosing tuning parts.

A properly selected, original M Sport front right wheel arch housing for the BMW E90/E91 allows you to restore proper protection of the wheel zone, maintain a consistent body appearance, and reduce the risk of accelerated corrosion and damage in the sensitive front part of the vehicle.