Wheel Carrier Mercedes W639 Wheel Hub Front Right O/S Suspension Axle Bracket

Wheel Carrier Mercedes W639 Wheel Hub Front Right O/S Suspension Axle Bracket is a precision suspension component designed for installation on the front right axle of Mercedes vehicles. It is responsible for stable wheel guidance, correct suspension geometry, and safe load transfer during braking and maneuvering. This used OEM component is a sensible choice for professional repairs where structural fit and predictable vehicle road behavior are essential.

Specifications and technical data

• SKU: A6393301332-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6393301332
• Substitutable numbers: A6393301332, A 639 330 13 32, A6393320225, A 639 332 02 25, A6393320288, A 639 332 02 88
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The steering knuckle with hub on the front right side is responsible for connecting the suspension components, steering system, and wheel assembly. In practice, this means:

• maintaining the correct wheel position relative to the body,
• ensuring stable mounting of the hub and bearing,
• transferring forces from the control arms and shock absorber to the wheel,
• cooperating with steering system components for turning.

As a result, the vehicle maintains predictable handling characteristics, and the suspension geometry can be set according to the manufacturer's requirements.

Compatibility and fitment for Mercedes W639

The offered steering knuckle has been designed specifically for Mercedes W639 series models, which translates into factory-standard mounting fitment. The mounting holes, connection points, and geometry of the component are consistent with the original vehicle design, which facilitates installation and subsequent wheel alignment.

The component has a dedicated mounting position on the front, right side, so it does not require any modifications or adaptations. This is particularly important in the case of post-accident repairs and when replacing worn or damaged suspension components.

Characteristics of the used OEM component

The steering knuckle is sourced from dismantling and is offered as a used part. This type of OEM component ensures:

• retention of original structural rigidity and geometry,
• compatibility with factory hubs, bearings, and mounts,
• the possibility of an economical repair without compromising build quality.

With proper installation and inspection of other suspension elements, the steering knuckle provides a solid foundation for restoring correct vehicle handling and limiting excessive tire wear.

Application in service and suspension repairs

The steering knuckle with hub on the front right side is suitable both for standard replacement of a damaged element and for more extensive suspension system repairs. It is particularly useful in situations where there has been:

• mechanical damage following a collision or impact with an obstacle,
• permanent bending of the component resulting in geometry issues,
• excessive wear of mounting points.

Choosing an original steering knuckle for a Mercedes reduces the risk of installation problems and ensures predictable vehicle behavior after the repair.

Modernization expansion and knowledge about used parts

If you are planning a comprehensive repair or modernization of the suspension area in your Mercedes and need other elements from the same group, such as control arms, hubs, or shock absorber mounts, check out the available parts in the Mercedes suspension replacement kits category.

When selecting used suspension components, it is worth knowing good practices related to the secondary market, regeneration, and technical condition assessment. A broader context for the use of second-hand parts – also in cars of other brands – can be found in the article Audi on second-hand parts – tuning and repairs without loss of quality, which shows how to consciously use used components, combining savings with the reliability of repairs.