Mercedes W204 Wheel Carrier Rear Right O/S Suspension Wheel Hub A2043570206

Mercedes W204 Rear Right Wheel Suspension Knuckle is an item from the Suspension Replacement Kits category, designed for installation on the rear right axle of Mercedes vehicles. This is a used, original knuckle that allows for a technically correct repair of the running gear, while maintaining the factory suspension geometry and stable vehicle handling.

Specifications and technical data

• SKU: A2043570206
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2043570206
• Substitutable numbers: A2043570206, A 204 357 02 06
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and Function in Suspension

The rear right knuckle in the Mercedes W204 model is a key structural component that connects the wheel hub, suspension elements, and braking system. It is responsible for the correct wheel guidance in its axis, maintaining geometry, and stable load transfer during driving, braking, and overcoming uneven surfaces.

Thanks to the precise design characteristic of the Mercedes brand, the component ensures:

• stable handling of the rear axle in corners,
• maintenance of set wheel camber and toe angles,
• proper cooperation with control arms, springs, and shock absorbers,
• secure mounting of the hub and braking system components.

Compatibility and Vehicle Placement

The presented knuckle is designed for installation on the rear right side of the vehicle, eliminating the risk of error when selecting parts for the left side or front axle. This unambiguous determination of placement facilitates the mechanic's repair planning and selection of other components from the Suspension Replacement Kits category.

The component has been designed as part of the original Mercedes suspension system, thus retaining factory mounting points and geometry, which is particularly important for subsequent wheel alignment and geometry checks at the diagnostic station.

Characteristics of a Used Knuckle

The offered knuckle comes from disassembly and has a used status. In practice, this means it is an original component from a vehicle that retains the design and parameters intended by the manufacturer, while offering savings compared to new parts. This type of solution is often chosen in professional workshops when the priority is to combine quality with a reasonable repair cost.

A used knuckle for the Mercedes W204 is a good choice in situations such as:

• mechanical damage after a collision or hitting an obstacle,
• excessive wear of mounting sockets or deformation from load impact,
• the need to restore correct suspension geometry after bodywork and mechanical repairs.

Benefits of Using an Original Mercedes W204 Knuckle

Using a component such as the Mercedes W204 Rear Right Wheel Suspension Knuckle allows for maintaining the integrity of the entire running gear. The original design ensures:

• precise fit with other suspension components,
• retention of factory vehicle handling characteristics,
• reduced risk of installation problems compared to aftermarket parts of uncertain specifications.

For the user, this means predictable vehicle behavior on the road, better cooperation with safety systems, and a lower risk of accelerated tire wear resulting from incorrect geometry.

Mercedes Suspension Replacement Kits – Selecting Related Components

When replacing a knuckle, it is often recommended to simultaneously check other components from the Suspension Replacement Kits category, such as control arms, bushings, or links, to avoid repeated disassembly in a short time. If you are looking for other elements in this category dedicated to this brand, check the available Mercedes Suspension Replacement Kits to assemble a complete parts package for rear axle repair.

More About Used Parts for Mercedes

Choosing a used knuckle is a sensible compromise between cost and quality, especially for premium class cars. If you want to learn more about how to safely and consciously use used components in cars of this brand, check out the guide Used Parts for Mercedes – Original Parts from Disassembly, where we discuss practical aspects of selecting and operating such elements.