Mercedes W164 ML 63 Wheel Carrier Hub Rear Left N/S Axle Bracket Holder

Mercedes W164 ML 63 Wheel Carrier Hub Rear Left N/S Axle Bracket Holder is an original chassis component designed for the rear left side of the suspension in the Mercedes M-Class W164 generation, specifically the 63 AMG version. This precision-engineered component serves as a critical link connecting the wheel hub to the suspension and braking system, ensuring stable handling and predictable vehicle behavior. Choosing such a factory rear steering knuckle allows for maintaining the proper geometry and suspension performance characteristics as specified by the manufacturer.

Specifications and technical data

• SKU: A1643501108
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643501108
• Substitutable numbers: A1643501108, A 164 350 11 08
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented hub with steering knuckle operates in the rear suspension area on the left side. It is responsible for:

• stable wheel seating within the suspension axis,
• transferring vertical and lateral loads to the suspension elements,
• maintaining proper wheel geometry under dynamic driving conditions,
• correct positioning of braking system components relative to the brake disc.

Thanks to its dedicated placement in the rear left part of the vehicle, the component is structurally matched to the specific loads characteristic of the drive axle in the high-performance ML 63 version.

Technical and functional characteristics

The steering knuckle with hub in this Mercedes model forms a rigid structural node to which the control arms, shock absorber, and braking system components are attached. The appropriate stiffness and precision of workmanship influence:

• maintaining specified wheel camber and toe angles,
• even tire wear during daily operation,
• driving stability at higher speeds,
• confident cornering, especially given the vehicle's high mass and power.

In the event of damage to the steering knuckle or hub – e.g., after a collision, hitting a curb, or long-term operation in harsh conditions – replacing it with an original part from the same construction group is the simplest way to restore proper suspension performance.

Benefits of using an original rear steering knuckle

Using a factory component in the ML 63 model provides a number of practical advantages:

• Full installation compatibility – all mounting points and geometry specified by the manufacturer are preserved.
• Consistency with other suspension elements – the steering knuckle works seamlessly with stock control arms, shock absorbers, and the braking system.
• Predictable vehicle behavior – no need for adaptations or modifications, which facilitates geometry alignment after replacement.
• Possibility of economical repair compared to purchasing a new component while maintaining the original design.

This solution is particularly beneficial for repairs of premium class vehicles, where both the quality of workmanship and the preservation of factory driving parameters are essential.

Component condition and use in service practice

The offered hub with steering knuckle comes from dismantling and is intended for reinstallation after verification in a workshop. This type of component is often chosen by service centers specializing in the Mercedes brand as a way to reduce repair costs while maintaining the original technical specifications. It works well both for post-accident repairs and for replacing worn suspension elements in heavily used vehicles.

If you are planning a comprehensive repair or upgrade of the rear suspension zone in your Mercedes and need other elements from the same group, such as control arms, mounts, or additional mounting components, check the available parts in the Mercedes suspension replacement kits category.

Why choose used original Mercedes components

For premium class models, choosing used, factory-made components allows for a significant reduction in repair costs while maintaining high quality. The rear steering knuckle with hub from dismantling is a good example of a component that – after proper installation and geometry alignment – can continue to perform in the vehicle for a long time. You can find more about the advantages of using original components from dismantling in cars of this brand in the article Used parts for Mercedes – original parts from dismantling.