BMW F30 F31 Rear Bumper Diffuser M Sport Trim Cover Single Exhaust 8054197

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F30 F31 Rear Bumper Diffuser M Sport Trim Cover Single Exhaust is an original part from the Bumpers and reinforcements group, designed for installation in the rear section of the vehicle body. The black diffuser is a functional addition to the M Sport package, improving aerodynamics and the visual consistency of the rear bumper in your BMW 3 Series.

Specifications and technical data

• SKU: 8054197
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8054197
• Substitutable numbers: 8054197, 51128054197
• Location on the vehicle: Rear
• Color: Black
• Category: Bumpers & Reinforcements

Purpose and fitment for BMW F30/F31

The presented diffuser has been designed specifically for the M Sport rear bumper in BMW F30 and F31 models. Thanks to the factory mounting geometry, it ensures precise fitment with the bumper line without the need for structural modifications. This solution is particularly beneficial when replacing a damaged part or converting a standard bumper to a sport-style variant.

Design characteristics and color

The black rear bumper diffuser creates a cohesive, dynamic accent in the lower part of the body, emphasizing the sporty silhouette of the 3 Series. The neutral, dark color scheme facilitates integration with various paint shades while harmonizing well with other M Sport package elements. The diffuser's design is optimized for airflow in the rear zone of the vehicle, which promotes stability at higher speeds and reduces turbulence behind the car.

Function in the bumper and reinforcement system

As an element from the Bumpers and reinforcements group, the diffuser acts as a cover for the lower part of the bumper and as an airflow guide. It works in conjunction with other components of the rear body zone, creating an orderly, compact structure. A properly selected diffuser helps to:

• maintain proper airflow under and behind the vehicle,
• preserve the aesthetic line of the lower bumper edge,
• reduce the risk of visual damage to the lower part of the bumper.

Part condition and benefits of installation

The diffuser is offered as a used part, which allows for an economical replacement while maintaining the original BMW specification. Choosing a factory component ensures dimensional compliance and proper fitment to the existing rear bumper structure. Installing a properly selected diffuser allows you to restore the vehicle's original appearance after a collision or modifications, as well as maintain the stylistic consistency of the entire M Sport package.

Expanding your BMW rear zone upgrade

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

For drivers interested in a broader approach to servicing and upgrading premium vehicles, practical tips on engine unit maintenance may also be useful – you can find them in the article Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C-Class and E-Class models?, which discusses best practices for selecting and replacing components in premium cars.