BMW F30 F31 F32 Rear Wheel Alloy Rim 19" M Star Spoke 403 ET:47 8,5J 7850021

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F30 F31 F32 Rear Wheel Alloy Rim 19" M Star Spoke 403 ET:47 8,5J is an original M-line component designed for the rear axle of 3 and 4 Series models. Thanks to precisely selected geometric parameters and a robust aluminum construction, it ensures stable handling, secure tire seating, and a consistent look with factory M-packages. This is a solution for drivers who want to maintain the car's original character while ensuring high driving performance.

Specifications and technical data

• SKU: 7850021-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7850021
• Substitutable numbers: 36117850021, 7850021
• Location on the vehicle: Rear
• Rim diameter: 19"
• Rim width: 8.5
• Offset (ET): 47
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Technical specifications and intended use

The M 403 rear alloy rim has been designed specifically for the drive axle of the BMW F30, F31, and F32. The design, based on a properly selected width, diameter, and offset parameter, allows for correct wheel positioning in the wheel arch, maintenance of proper suspension geometry, and compatibility with the braking system intended for this configuration.

The bolt pattern and diameter of the mounting holes are adapted to factory BMW hubs, which allows for trouble-free installation using original bolts. The aluminum material used provides a favorable strength-to-weight ratio, which supports suspension performance and improves the car's response to load changes during acceleration and braking.

Construction and performance features

The rim belongs to the Rims category and represents the style characteristic of the M series – sporty, yet maintaining visual consistency with the BMW bodywork. The properly selected rim width allows for the use of tires with the profile intended for the M-package, which translates into predictable vehicle behavior in corners and effective transfer of torque to the road surface.

The aluminum construction reduces unsprung mass compared to steel solutions, which positively affects shock absorber performance and ride comfort. At the same time, the rim maintains the required rigidity, which is essential for dynamic driving and at higher highway speeds.

Benefits of using an original BMW rim

Using an original M 403 rear rim on a BMW F30, F31, or F32 ensures:

• stylistic consistency with the factory M-package and other wheels on the vehicle,
• maintenance of the suspension geometry and wheel track as intended by the manufacturer,
• compatibility with factory brake system components and hubs,
• stable handling at higher speeds thanks to properly selected rim parameters.

This solution is particularly beneficial when replacing a single rim after mechanical damage or when restoring a car to its original specification after previous modifications.

Product condition and practical application

The rim is offered as a used original BMW component, which allows for a reasonable purchase cost while maintaining factory technical parameters. Such a choice is often preferred for post-accident repairs, replacement after curb contact, or when completing a set of wheels for seasonal tire changes.

Thanks to the retention of original dimensions and construction, the rim performs well both in daily city driving and more dynamic highway driving, ensuring predictable vehicle behavior and proper cooperation with safety systems.

More about BMW rims and practical tips

If you are planning a comprehensive repair or upgrade of the wheel and suspension area in your BMW and need other components from the same group, such as additional rims, wheel sets, or alternative rim designs, check out the available parts in the BMW Rims category.

Before purchasing a used rim, it is worth knowing the most important aspects of its selection, condition verification, and potential refurbishment – you will find practical tips in the article Used rims like new: a guide to buying and refurbishing alloy rims, which will help you consciously evaluate and plan the purchase of rims for your car.