BMW F30 F31 F32 Rear 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 F32 Rear Wheel Alloy Rim 18" 8,5J ET:47 M Star Spoke 400 is an original, used rear light-alloy rim designed for BMW 3 and 4 Series models. Thanks to precisely selected geometric parameters, it ensures stable handling, proper tire seating, and a consistent look with the factory wheel set. This is a solution for drivers who want to maintain factory driving characteristics and the aesthetics characteristic of BMW.

Specifications and technical data

• SKU: 7845881-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845881
• Substitutable numbers: 7845881, 36117845881
• Location on the vehicle: Rear
• 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

The presented rear alloy rim has been designed for BMW F30, F31, and F32 platforms, which translates into a proper fit for the suspension system and bodywork. The rim construction complies with the manufacturer's factory standards, ensuring that axle geometry, proper cornering, and predictable vehicle behavior at higher speeds are maintained.

The appropriately selected width, diameter, and mounting parameters allow for seamless compatibility with original tires and suspension components. A rear wheel with such a configured rim ensures stable torque transfer to the road surface and proper load distribution on the drive axle.

Construction and characteristics of the alloy rim

The rim is made of aluminum, which allows for a favorable strength-to-weight ratio. A lighter rim compared to steel solutions reduces unsprung mass, which positively affects suspension response, ride comfort, and handling precision. At the same time, the appropriate structural rigidity is maintained, which is essential for the dynamic operation typical of BMW models.

The bolt pattern and diameter of the mounting holes are adapted to factory BMW hubs, which enables proper wheel centering and even force distribution to the hub. The applied offset parameters help maintain the correct wheel position relative to the wheel arch, which is important for both handling and body aesthetics.

Rear axle application and driving properties

As a rim designed for the rear axle, this component works directly with the drivetrain and suspension, influencing traction, stability, and power transfer efficiency. The appropriate rim width allows for the installation of tires with parameters matched to the characteristics of the BMW drive, which supports grip during acceleration and cornering.

Precise matching of the rim dimensions to the manufacturer's specifications reduces the risk of incorrect loading of wheel bearings or suspension components. This ensures the consistency of the entire driving system, which is important for both safety and component durability.

Benefits of choosing an original used rim

Choosing a used OEM alloy rim for BMW is a reasonable compromise between cost and quality. You receive a component designed specifically for a given model, maintaining factory mounting parameters and styling, while reducing expenses compared to a new component. This is a particularly beneficial solution when replacing a single rim after mechanical damage or restoring a car to its original wheel configuration.

If you want to better prepare for purchasing rims from the secondary market or are planning to refresh a set of wheels, our blog guide will be helpful – check out Used rims like new: a guide to buying and refurbishing alloy rims, where you will find practical tips on assessing the condition and possibilities of rim refurbishment.

Expanding your BMW Rim set

If you are planning a comprehensive repair or upgrade of the wheel and suspension area in your BMW and need other elements from the same group, such as additional rims, seasonal sets, or rims with similar parameters for the front axle, check out the available parts in the BMW Rims category.

In summary, BMW F30 F31 F32 Rear Wheel Alloy Rim 18" 8,5J ET:47 M Star Spoke 400 is a technically matched, aluminum rear rim that allows you to maintain the characteristic driving properties and styling of a BMW while reducing costs by using a proven, used component.