Mercedes W204 Wheel Carrier Rear Left N/S Suspension Knuckle Mount A2043500341

Mercedes W204 Wheel Carrier Rear Left N/S Suspension Knuckle Mount is an original chassis component from the Wheel bearings, hubs and bushings group, designed for installation on the rear left axle of the vehicle. It ensures precise wheel guidance, stable hub seating, and proper interaction with the suspension and braking system, which translates into safe and predictable vehicle handling on the road. This is a solution for users who are looking for a factory fit and want to restore the correct suspension geometry in their Mercedes C-Class.

Specifications and technical data

• SKU: A2043500341-8
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2043500341
• Substitutable numbers: A2043500341, A 204 350 03 41, A2044211720, A 204 421 17 20
• Location on the vehicle: Rear, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the chassis system

The steering knuckle with wheel hub mounted on the rear left axle is responsible for the stable connection of the hub to the suspension components and for maintaining the correct position of the wheel relative to the body. It is a key link that transfers vertical, lateral, and longitudinal loads generated during acceleration, braking, and cornering.

In combination with control arms, shock absorbers, and the braking system, this component allows for maintaining correct wheel alignment and camber, which has a direct impact on:

• handling stability at higher speeds,
• even tire wear,
• braking efficiency and the operation of safety systems,
• driving comfort and the reduction of unwanted vibrations.

Benefits of using an original steering knuckle with hub

Using an original component in a Mercedes C-Class W204 series allows for maintaining the factory parameters of the chassis. Precise dimensional fit facilitates installation and minimizes the risk of play or stress that could occur with non-original parts. This makes it possible to quickly restore the correct suspension geometry after a collision, mechanical damage, or operational wear.

The steering knuckle with wheel hub is particularly important in vehicles equipped with advanced electronic stability control systems, where the accuracy of the wheel position affects the proper operation of safety-related electronics. Choosing this component is a solution for drivers who expect consistency with factory specifications and predictable vehicle behavior in all conditions.

Condition, verification, and fitment

The offered component comes from disassembly and has a used status, which allows for combining an attractive purchase cost with the preservation of the manufacturer's original design. Each steering knuckle with hub is visually verified for mechanical damage, excessive corrosion, and the integrity of mounting points to ensure the possibility of further safe operation after installation.

To correctly select the part for a specific engine and equipment version, it is worth comparing the markings with the vehicle documentation or consulting a mechanic. The product has a dedicated OEM part number and interchangeable numbers, which facilitates unambiguous identification and selection of the appropriate variant for a given Mercedes model.

Using used parts in Mercedes service

Choosing a used steering knuckle with wheel hub is a reasonable solution for post-accident repairs, renovations, or optimizing service costs, especially in the case of older C-Class models. The original design ensures compatibility with factory suspension elements while allowing for cost savings compared to new parts from an authorized service center.

If you want to better understand how to safely use the secondary market and what to look for when choosing components from disassembly, read the article Used car parts: myths and facts you need to know, which dispels the most common doubts associated with such purchases.

Chassis expansion and related parts

When replacing the steering knuckle with hub on the rear left axle, it is worth checking the condition of bearings, bushings, and other mounting elements in this area. If you are planning a comprehensive repair or upgrade of the rear axle suspension zone in your Mercedes and need other elements from the same group, such as additional hubs, bearings, or mounting bushings, check the available parts in the Mercedes wheel bearings, hubs and bushings category.