BMW F30 F31 Rear Alloy Wheel Rim Black 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 Alloy Wheel Rim Black 18" 8,5J ET:47 M Star Spoke 400 is an original rear light-alloy wheel designed specifically for the 3 Series F30/F31 models. The black color and the distinctive M Star Spoke pattern give the car a distinctly sporty character while maintaining the factory fitment typical of BMW wheels.

Specifications and technical data

• SKU: 7845881-13
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845881
• Substitutable numbers: 36117845881, 7845881
• 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 wheel rim has been prepared as a rear axle component for the BMW 3 Series F30/F31 generation. Its light aluminum alloy construction ensures precise handling and stability while maintaining the vehicle's factory driving parameters. By adhering to the original geometry, the wheel works with the suspension and steering system exactly as intended by the manufacturer.

Design and construction characteristics

The M Star Spoke 400 model stands out with its dynamic, multi-spoke pattern that effectively showcases the brake calipers and discs. The black surface of the rim emphasizes the body lines, especially when combined with light-colored paint, creating a sharp, sporty contrast. The aluminum construction of the wheel helps reduce unsprung mass, which translates into a more precise vehicle response to steering inputs.

Mounting parameters and compatibility

The wheel was manufactured with the standard BMW bolt pattern and hub diameter in mind, facilitating easy installation on the hubs used in the 3 Series F30/F31. The diameter, width, offset, and number of mounting holes used in this model are consistent with the factory requirements for rear wheels in these vehicles, meaning there is no need for spacers or non-standard mounting solutions.

Benefits of choosing an original alloy wheel

Choosing an original BMW alloy wheel primarily ensures perfect fitment and the preservation of proper suspension geometry. The aluminum material of the rim promotes better heat dissipation from the braking system, which is important during dynamic driving. Additionally, the black M Star Spoke 400 finish allows for an easy way to refresh the car's appearance, improving its look without interfering with the body structure.

Condition and practical application

The wheel comes from the secondary market, making it a sensible choice when replacing a single damaged wheel or gradually completing a set. It can be used both as a replacement for a factory rim after a collision or mechanical damage, and as an element of a visual refresh for the car when the existing wheels are visually worn out. If you are planning a comprehensive repair or upgrade of the wheel area in your BMW and need other components from the same group, such as additional rims, spare seasonal sets, or wheels with a similar pattern, check the available parts in the BMW Wheels category. When selecting a used alloy wheel for a BMW, it is worth paying attention to the compatibility of mounting parameters, the condition of the surface, and the advisability of replacing a single rim versus the entire set – these issues are discussed in detail in the article Do scratched rims ruin the look of your car? Used original alloy wheels for Audi and BMW as a quick way to a metamorphosis, which will help you make an informed purchasing decision.