BMW F30 F31 Rear Black Wheel Alloy Rim 18" 8,5J ET:47 M Star Spoke 400 7845881

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW F30 F31 Rear Black Wheel Alloy Rim 18" 8,5J ET:47 M Star Spoke 400 is an original rear alloy rim designed for 3 Series models, ensuring a precise fit and a look consistent with factory equipment. The black color of the rim emphasizes the dynamic character of the car, while the solid aluminum construction guarantees stable handling and predictable suspension behavior. This is a solution for drivers who want to maintain factory specifications while ensuring the aesthetics and functionality of the chassis.

Specifications and technical data

• SKU: 7845881-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845881
• Substitutable numbers: 7845881, 36117845881
• Location on the vehicle: Rear
• Color: Black
• Rim diameter: 18"
• Rim width: 8.5
• Offset (ET): 47
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Purpose and fitment for BMW F30 / F31

The presented rim has been designed as a rear axle component for BMW 3 Series F30/F31 generation vehicles, which translates into proper load distribution and compatibility with factory suspension settings. Thanks to a design that meets the manufacturer's requirements, handling parameters, stability at higher speeds, and proper interaction with the braking system and safety systems are maintained. Original BMW branding also means proper mounting geometry and predictable rim behavior in daily use.

Construction, material and technical parameters

The rim belongs to the Rims category and is made of a lightweight aluminum alloy, which helps reduce unsprung mass compared to steel solutions. The aluminum construction promotes better suspension response to road irregularities and improves steering precision, which is particularly noticeable on the rear axle. The applied rim profile and properly selected offset ensure the wheel is correctly seated in the wheel arch, without interfering with suspension or body components.

The bolt pattern and diameter of the mounting holes are adapted to the BMW standard, which enables trouble-free installation on hubs and proper force transfer during acceleration, braking, and cornering. The number of mounting points promotes even pressure of the rim against the hub, which is important for durability and driving comfort. The black color of the rim gives the car a more decisive, modern look and blends well with both light and dark body colors.

Styling 400 – visual and functional characteristics

The Styling 400 pattern is a design prepared specifically for BMW, combining understated styling with functionality. The shape of the rim spokes promotes effective heat dissipation from the braking system, which is important during dynamic driving and frequent braking. At the same time, the rim construction has been developed to facilitate cleaning – access to the space between the spokes is convenient, which allows the rim to be kept in good visual condition with standard maintenance.

The black aluminum Styling 400 rim fits well into both stock configurations and slightly modified cars, where the owner expects a consistent but more expressive look. Using this rim on the rear axle allows for a uniform design of the entire wheel set, especially in vehicles factory-equipped with this pattern.

Condition, application and benefits of choosing a used rim

The rim is offered as a secondary market item, which allows for cost savings compared to purchasing a new rim while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial when:

• it is necessary to replace a single rim after mechanical damage,
• completing a set of wheels with a missing piece,
• restoring a car to its factory configuration after previous modifications.

Choosing a used BMW alloy rim is a reasonable compromise between cost and maintaining the original appearance and driving parameters. A properly selected rim minimizes the risk of problems with balancing, incorrect tire seating, or collision with suspension components.

How to consciously buy used rims and plan a modernization

When purchasing a rim from the secondary market, it is worth paying attention to the compliance of parameters with the vehicle's factory requirements, the condition of the surface, and any history of refurbishment. It is also good practice to consult a service center regarding tire selection and checking radial and axial runout after installation. To better prepare for the purchase and potential refurbishment of the rim, the guide Used rims like new: a guide to buying and refurbishing alloy rims, which discusses key aspects of selecting and refurbishing alloy rims, will be helpful.

If you are planning a comprehensive repair or modernization of the wheel and suspension area in your BMW and need other elements from the same group, such as additional rims, seasonal sets, or replacement wheel configurations, check out the available parts in the BMW Rims category.