Description
Mercedes W204 C63 AMG Steering Knuckle Rear Left is a component from the Suspension Replacement Kits category, designed for the rear left axle in Mercedes C-Class W204 models, specifically the C63 AMG version. This solution is for users who expect precise suspension geometry, stable handling, and reliable support for the braking system and wheel.
Specifications and technical data
- SKU: A2043501341
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2043501341
- Substitutable numbers: A2043501341, A 204 350 13 41, A2303570308, A 230 357 03 08, A2044211720, A 204 421 17 20, BG
- Location on the vehicle: Rear, Left
- Category: Suspension Component Replacement Kits
Vehicle Application and Placement
The presented steering knuckle with hub is designed for installation on the rear left side of the vehicle. It is responsible for the correct seating of the wheel hub, cooperation with control arms, and braking system components, which directly impacts:
- maintaining proper rear axle suspension geometry,
- driving stability at higher speeds,
- even tire wear,
- precise handling characteristic of the AMG version.
Technical Specifications and Compatibility
The steering knuckle with hub has been developed specifically for the sporty C63 AMG variant, meaning it is tailored to the specific suspension characteristics of this model. The component works with factory-supplied drivetrain components, ensuring:
- appropriate connection stiffness with control arms and the shock absorber,
- stable wheel hub mounting,
- proper cooperation with the factory braking system.
Thanks to the use of the original design, installation is predictable for the mechanic, without the need for suspension component modifications.
Component Condition and Benefits of Choosing a Used Steering Knuckle
The offered wheel hub knuckle belongs to the group of used parts, which allows for reduced repair costs while maintaining the original design specifications. Choosing such a solution is particularly beneficial when:
- suspension damage has occurred after a collision or hitting an obstacle,
- there are problems with maintaining rear axle geometry,
- the wheel hub support element needs replacement.
By using an original part from a dismantled vehicle, factory driving parameters can be preserved, which is important for both safety and the durability of other suspension components.
Application in the Suspension System and Driving Safety
As part of the Suspension Replacement Kits category, the wheel hub knuckle plays a crucial structural role in the rear axle. It is responsible for transferring loads from the wheel to the body and cooperating with camber and toe adjustment elements. A correctly selected and installed component:
- reduces the risk of incorrect wheel alignment,
- affects braking efficiency and stability during dynamic driving,
- reduces loads on bearings and control arms.
For high-performance vehicles like the C63 AMG, the proper condition of the steering knuckle is particularly important during intense acceleration, braking, and cornering.
Selection, Reference Numbers, and Technical Support
The component has a dedicated OEM part number and associated interchangeable numbers, which facilitates unambiguous identification and selection for a specific vehicle configuration. Before purchasing, it is advisable to compare the markings with the vehicle’s documentation or the dismantled part to confirm full compatibility.
If you want to better understand how to care for parts from dismantled vehicles, including suspension components, consult the guide How to Extend the Lifespan of Used Car Parts?, which describes practical methods for maintaining and operating such components.
Additionally, when selecting parts by manufacturer numbers, the article Risk-Free Online Parts Shopping – 5 Ways to Verify Compatibility by OEM Numbers may be helpful, discussing, among other things, the verification of suspension components for Mercedes.
Related Products from the Same Category
If you are looking for other Mercedes Suspension Replacement Kits for your car, check out the Mercedes Suspension Replacement Kits available in our store to select complete solutions for the front and rear axles that comply with manufacturer requirements.





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