Mercedes W177 Rear Left N/S Wheel Hub A2474230120

Mercedes W177 Rear Left N/S Wheel Hub is an original brake system component designed for installation on the rear left axle of Mercedes vehicles. It provides proper protection for the brake disc against contaminants, which promotes stable braking performance and reduces premature wear of working components.

Specifications and technical data

• SKU: A2474230120
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2474230120
• Substitutable numbers: A2474230120, A 247 423 01 20
• Location on the vehicle: Rear, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and technical function

The described shield operates in the rear axle area on the left side, where it is responsible for shielding the brake disc from water, mud, road salt, and small stones. As a result, it reduces the risk of surface corrosion on the disc and helps maintain uniform operating conditions for the brake pads.

The component belongs to the Wheel bearings, hubs, and bushings group, which emphasizes its close connection to the wheel assembly and brake system. A correctly selected shield supports the stability of the hub and bearing operation, reducing the impact of contaminants on adjacent components.

Benefits of using an original shield

Using a factory shield in a Mercedes vehicle translates into predictable brake system behavior and correct mounting geometry relative to the hub and disc. Key advantages include:

• precise fitment to the rear left side of the vehicle without the need for modifications,
• preservation of the brake disc protection designed by the manufacturer,
• limitation of contaminants entering the hub and bearing area,
• support for even wear of the brake disc and pads.

This makes the shield a practical choice for brake system maintenance, especially when the existing component is corroded, deformed, or mechanically damaged.

Product characteristics and installation

The presented shield is a part from disassembly, in Used condition, which allows for economical repair while maintaining the original geometry and manufacturing standards specific to the Mercedes brand. This type of element is intended for installation in the factory location, using standard mounting points in the wheel hub assembly.

Before installation, it is recommended to perform a standard verification of the mounting surfaces and clean the adjacent brake system components. A correctly installed shield should not rub against the disc or other moving parts, which is essential for maintaining driving comfort and avoiding unwanted noises.

Using a used part in service practice

Choosing a used brake disc shield is often economically justified, especially during comprehensive work on the rear axle. An original part from disassembly can provide a favorable cost-to-durability ratio, provided its condition is properly assessed before installation.

If you want to better understand how to safely use components from disassembly and dispel doubts regarding their quality, it is worth reading our guide: Used car parts: Myths and facts you need to know. The article explains what to look for when choosing such elements and how to make informed service decisions.

Expanding wheel area service for Mercedes

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