Mercedes W124 Wheel Carrier Front Left N/S Suspension Axle Hub Mount A1243300420

Mercedes W124 Wheel Carrier Front Left N/S Suspension Axle Hub Mount is an original suspension component designed for the front axle on the driver's side. Thanks to its factory geometry and robust construction, it ensures stable handling, precise tracking, and proper integration with the suspension and braking systems. This is a practical solution for owners of the classic Mercedes W124 looking for a proven component from the Wheel bearings, hubs, and bushings category.

Specifications and technical data

• SKU: A1243300420
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1243300420
• Substitutable numbers: A1243300420, A 124 330 04 20
• Weight: 150
• Location on the vehicle: Front, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the suspension system

The wheel carrier with hub mounted on the front – left side is responsible for guiding the wheel, transferring loads from the suspension to the chassis, and ensuring the correct seating of brake components. Combined with the shock absorber, control arms, and steering system, it forms a rigid, stable assembly that contributes to:

• maintaining proper wheel alignment during driving and braking,
• even tire wear,
• confident vehicle behavior in corners,
• precise steering response.

A properly selected wheel carrier with a hub is particularly important in cars like the W124, where predictable handling and the ride comfort characteristic of the Mercedes brand are essential.

Original Mercedes component – fitment and compatibility

The presented wheel carrier with hub comes from the Mercedes range, which ensures factory mounting parameters and compatibility with the W124 front suspension design. Original mounting points and connection interfaces facilitate installation and reduce the risk of issues with wheel alignment or brake system operation.

The component has a dedicated OEM part number and corresponding interchangeable numbers, allowing a mechanic or technical advisor to quickly verify compatibility with a specific body and engine version. This makes selecting the component for a given vehicle simpler and more predictable.

Performance characteristics and application benefits

The front left wheel carrier with hub for the Mercedes W124 has been designed for durable operation in demanding road conditions. The manufacturer's design ensures:

• stable seating of the hub and wheel bearings,
• appropriate stiffness of the suspension assembly,
• correct transfer of braking forces to the chassis,
• the ability to repeatedly remove and install mating components (e.g., caliper, shock absorber).

By maintaining the original geometry, it is easier to achieve correct wheel alignment at a diagnostic station after replacing it with a functional part, which translates into driving comfort and safety.

Condition, origin, and use in service practice

The offered wheel carrier with hub is a used part, which allows for economical repair while maintaining the original Mercedes design. This is a particularly beneficial solution for older models where the availability of new parts may be limited or cost-prohibitive.

Before installation, a standard workshop procedure is recommended: inspection of mounting surfaces, threads, support points, and an assessment of the condition of mating suspension and brake components. A correctly selected and installed component allows for the restoration of proper front axle behavior without the need for costly modifications.

If you want to better understand how to reasonably use the second-hand parts market and dispel doubts regarding their quality, it is worth reading the article Used car parts: Myths and facts you need to know, which discusses the most common concerns of drivers in an accessible way.

Comprehensive service for the wheel and suspension area in a Mercedes

If you are planning a comprehensive repair or upgrade of the wheel and suspension area in your Mercedes and need other components from the same group, such as hubs, bearings, or bushings, check out the available parts in the Mercedes wheel bearings, hubs, and bushings category.

For larger service tasks, it may also be helpful to reduce the vehicle's downtime at the workshop – you can read about how a wide assortment in one place affects repair speed in the guide No more waiting for weeks – how a wide range of products in one warehouse really shortens your car's downtime at the mechanic's?.