Mercedes A Class W168 A140 Front Right O/S Suspension Leg Brake Wheel Hub

Mercedes A Class W168 A140 Front Right O/S Suspension Leg Brake Wheel Hub is a complete, used module designed for installation on the front axle. Thanks to its original Mercedes design, it ensures precise wheel handling, vehicle stability, and proper integration with the braking system.

Specifications and technical data

• SKU: A1683203130-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1683203130
• Substitutable numbers: A1683203130, A 168 320 31 30, A1683301720, A 168 330 17 20, A1684200183, A 168 420 01 83, A1684210112, A 168 421 01 12
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Application and function in the suspension system

This suspension assembly combines the strut, wheel hub mount, and brake-related components, creating a rigid reference point for front axle geometry. Its placement on the front right side of the vehicle means the component is responsible for maintaining the correct wheel camber and toe, as well as transferring loads from the road surface to the chassis.

A complete assembly of this type is particularly useful for post-collision repairs, replacing a damaged strut, or addressing play within the wheel mounting area, especially when maintaining structural consistency and reducing the number of individually sourced parts is a priority.

Compatibility and technical markings

The offered element belongs to the Suspension replacement kits group, meaning it was designed as a cohesive module compatible with the factory suspension system of the Mercedes A Class W168 A140. The presence of the OEM part number and related interchangeable numbers facilitates clear identification and selection for a specific body and engine version, and allows for comparison with the part removed from the vehicle.

Because this is a Mercedes brand product, compatibility with factory mounting points, diameters, and spacing is maintained, which translates into proper cooperation with other suspension and brake components and minimizes the risk of installation issues.

Benefits of using a complete suspension assembly

Replacing the complete suspension assembly with the hub and brake component on the front right side often allows for shorter repair times and fewer service operations. Instead of disassembling and refurbishing several separate components, the mechanic installs one cohesive module, which:

• facilitates maintaining correct front axle geometry,
• reduces the risk of part mismatch,
• simplifies the diagnosis of potential vibrations or noises from the wheel area,
• allows for faster restoration of full suspension system efficiency.

A used suspension assembly is also an attractive cost-effective option compared to purchasing a new module, while maintaining the factory design and performance characteristics intended by the vehicle manufacturer.

Selection, installation, and service tips

Before installation, it is recommended to compare the shape, mounting points, and hub type with the element removed from the car, as well as to verify compatibility using the OEM part number and interchangeable numbers. A correctly selected suspension assembly should work seamlessly with the existing braking system and other front axle components after installation.

After installation, it is worth performing a check and, if necessary, an adjustment of the wheel geometry to fully utilize the potential of the newly installed module and ensure even tire wear and stable vehicle handling across the entire speed range.

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

For drivers considering the use of used components in repair or tuning projects, an interesting addition to your knowledge might be an article describing how using refurbished and used parts in German cars looks in practice – you can find it here: Audi on second-hand parts – tuning and repairs without losing quality.

If you want to be even better prepared for choosing the right suspension module and avoid mistakes when selecting markings, it is worth using the practical expert advice available in the material: No more bad purchases! How to professionally choose used car parts.