Mercedes W212 Rear Axle Alloy Wheel Rim 18" ET:54 9J A2124012402

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W212 Rear Axle Alloy Wheel Rim 18" ET:54 9J is an original component from the Wheels category, specifically designed for the rear axle of the Mercedes E-Class W212 generation. The aluminum construction provides an optimal strength-to-weight ratio, while the precisely selected geometric parameters ensure stable handling and predictable vehicle behavior.

Specifications and technical data

• SKU: A2124012402-5
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2124012402
• Substitutable numbers: A2124012402, A 212 401 24 02
• Location on the vehicle: Rear
• Rim diameter: 18"
• Rim width: 9
• Offset (ET): 54
• Hole diameter: 112
• Number of holes: 5
• Rim material: Aluminium
• Category: Rims

Purpose and fitment for the Mercedes W212

This wheel rim was developed as a rear axle component, which is crucial for the correct load distribution and suspension geometry of the Mercedes W212. Using a dedicated rear wheel rim allows for maintaining the manufacturer's original specifications regarding traction, stability at higher speeds, and the operation of assistance systems such as traction control or electronic stability programs.

By maintaining the correct width, diameter, bolt pattern, and offset, the wheel rim works with the suspension system and brakes in accordance with the Mercedes engineers' design, which translates into predictable vehicle reactions and driving comfort.

Aluminum construction and performance properties

The wheel rim is made of aluminum, which helps reduce unsprung mass compared to steel solutions. A lighter rim promotes better suspension response to road irregularities, improves steering precision, and can positively influence the wear of suspension components and tires.

The aluminum construction also ensures high rim rigidity, which is essential during dynamic driving and intensive braking. The appropriately selected width and diameter of the rim allow for the installation of tires with parameters specified for the rear axle of the Mercedes W212, supporting proper grip and vehicle stability.

Mounting parameters and connection stability

The wheel rim features a bolt pattern, center bore, and number of mounting points adapted to the standards used by Mercedes, ensuring a secure, repeatable, and safe fitment on the hub. The properly selected offset affects the correct positioning of the wheel relative to the wheel arch and suspension components, minimizing the risk of rubbing and unwanted changes in steering geometry.

Such configured mounting parameters allow for maintaining the factory body line and the proper operation of the steering and suspension systems, which is important for both comfort and driving safety.

Using a pre-owned wheel rim in service practice

The wheel rim comes from the used original parts segment, making it an attractive solution for post-accident repairs, replacing a single damaged rim, or restoring a complete set of wheels to factory specifications. Choosing an original aluminum wheel rim allows you to avoid fitment issues typical of aftermarket replacements of uncertain origin.

During installation, it is recommended to always perform professional wheel balancing and a suspension geometry check to fully utilize the design's potential and ensure even tire wear.

Support for choosing aluminum wheel rims

If you are considering purchasing a used wheel rim or planning to refresh a set of rims for your Mercedes, it is worth checking out practical tips regarding selection, condition assessment, and refurbishment. Detailed information can be found in the article Used wheels like new: a guide to buying and refurbishing aluminum wheels, which discusses key technical and operational aspects.

Expanding wheel configuration for your Mercedes

If you are planning a comprehensive repair or upgrade of the wheel and tire area in your Mercedes and need other components from the same group, such as additional rims, seasonal sets, or wheels with similar parameters for the front axle, check the available parts in the Mercedes Wheels category.