BMW E90 E91 Black Rear Alloy Wheel Rim 18" ET:37 8.5J M Spider Spoke 193

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E90 E91 Black Rear Alloy Wheel Rim 18" ET:37 8.5J M Spider Spoke 193 is an original component from the Wheels category, designed for precise handling and a cohesive look for the rear axle. The characteristic M Spider Spoke design, combined with an aluminum construction, ensures an attractive appearance and stable vehicle performance during dynamic driving.

Specifications and technical data

• SKU: 7843841-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7843841
• Substitutable numbers: 7843841, 36117843841
• Location on the vehicle: Rear
• Color: Black
• Rim diameter: 18"
• Rim width: 8.5
• Offset (ET): 37
• Hole diameter: 120
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Purpose and fitment for BMW E90/E91

The presented wheel was developed as a rear rim for the BMW 3 Series E90/E91, with the aim of maintaining factory suspension geometry and proper load distribution. The design, tailored for the rear axle, promotes predictable handling, correct operation of traction control systems, and stability at higher speeds.

Thanks to the use of the original M Spider Spoke 193 design, the wheel harmonizes with the body lines, emphasizing the car's sporty character and ensuring stylistic consistency with other M package elements.

Aluminum construction and performance parameters

The wheel is made of aluminum, which allows for a favorable strength-to-weight ratio and precise spoke shaping. An aluminum rim helps reduce unsprung mass, which translates into better suspension response and more direct driving feedback.

The wheel size, width, offset, bolt pattern, and number of holes have been selected to work with the BMW 3 Series E90/E91 chassis without the need for additional adapters. Properly selected mounting parameters facilitate installation and ensure correct seating of the wheel on the hub.

Color and M Spider Spoke 193 styling

The black color of the rim gives the body a bold, dynamic character and complements both light and dark paint finishes well. The M Spider Spoke 193 pattern stands out with its aggressive yet orderly spoke line, which highlights the sporty profile of the 3 Series and visually widens the rear axle.

This combination of color and pattern is frequently chosen by drivers who expect not only utility from a wheel but also an aesthetic enhancement of the car's image, especially in configurations with a sportier character.

Condition, origin, and advantages of choosing a used wheel

The wheel is in used condition, meaning it has been in service but is still suitable for further use after proper verification and potential mounting preparation. For many users, this is a reasonable compromise between cost and maintaining original BMW specifications.

As an OEM component, it ensures factory fitment to the hub, brake calipers, and wheel arch without the need for suspension modifications. This is a practical solution when replacing a single wheel after damage or when gradually completing a set with the M Spider Spoke 193 design.

If you want to learn more about the possibilities of refreshing and preparing such components for further use, the guide Used wheels like new: a guide to buying and refurbishing aluminum wheels will be helpful, where you will find practical tips on assessing the condition and refurbishing wheels.

Practical mounting and maintenance tips

Before installation, it is recommended to thoroughly check the rim for radial and axial runout, the condition of mounting surfaces, and bolt seats. Properly selected tires, correct operating pressure, and regular visual inspection of the wheel help maintain stable handling and reduce the risk of damage during daily use.

It is also worth paying attention to properly tightening the wheel bolts using a torque wrench and periodically cleaning the rim of road deposits and brake pad dust, which facilitates maintaining the aesthetics of the black finish and limits surface corrosion.

Expanding the configuration – other BMW Wheels

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

For drivers considering the choice between an original component and a replacement, the guide material 5 reasons why a used OEM part is a better choice than a replacement may also be useful, discussing practical aspects of fitment, durability, and cost-effectiveness of the purchase.