Mercedes R172 SLK 200 Front Right O/S Sports Suspension Leg Wheel Hub Brake Disc

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes R172 SLK 200 Front Right O/S Sports Suspension Leg Wheel Hub Brake Disc is an original chassis component designed for the front axle on the right side, dedicated to the sports suspension version. Thanks to its factory geometry and robust construction, it ensures precise wheel guidance, body stability, and predictable vehicle behavior during dynamic driving. This is a solution for users who expect consistent handling from their Mercedes, in line with the manufacturer's specifications.

Specifications and technical data

• SKU: A1723200630-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1723200630
• Substitutable numbers: A1723200630, A 172 320 06 30, A2043320201, A 204 332 02 01, A2074210181, A 207 421 01 81, A0004211612, A 000 421 16 12
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension

The steering knuckle in the front suspension on the right side is responsible for precise positioning of the wheel hub, working in conjunction with the shock absorber, control arms, and steering system. In the sports suspension version, this component operates with more dynamic damping characteristics, which is why its geometry and rigidity are crucial for driving stability, especially at higher speeds and in corners.

A properly selected steering knuckle allows for maintaining correct toe, camber, and caster angles, which translates into:

• confident handling of the front axle in sports driving mode,
• even tire wear,
• consistent operation of the steering and braking systems.

Benefits of using an original component

The original sports version steering knuckle has been designed specifically for the suspension parameters of the Mercedes SLK R172, ensuring it maintains factory handling characteristics. Unlike aftermarket parts with a universal profile, the OEM component provides:

• precise fitment for shock absorber, control arm, and hub mounts,
• consistency with factory geometry settings,
• appropriate structural rigidity under loads typical for sports suspension.

This is particularly important in cars with higher power and stiffer suspension, where any play or deviation in geometry can affect stability and driving comfort.

Installation and operational characteristics

The component is intended for installation on the front axle on the right side, within a sports suspension system. The design is intended to work with factory suspension and steering components, which facilitates service and limits the need for additional modifications. After proper installation, it is recommended to perform a wheel alignment to fully utilize the potential of the sports configuration.

The product belongs to the Suspension replacement kits group, meaning it is ideal for comprehensive front axle maintenance – especially when shock absorbers, control arms, or mounting elements are being replaced simultaneously.

Selecting a used sports version steering knuckle

In the case of sports suspension, selecting the correct steering knuckle has a direct impact on safety and handling predictability. A used OEM component allows you to maintain the factory design and operating parameters while optimizing service costs. This is a particularly beneficial solution when you want to maintain the original suspension characteristics without interfering with the manufacturer's design.

To better understand the differences between standard and sports configurations and to make an informed decision when purchasing used chassis components, it is worth reading the article: Standard vs. sports suspension – differences in construction and is it worth buying used suspension parts?

Expanding Mercedes suspension service

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