Mercedes W205 W213 Front Brake Caliper Housing Left N/S 305x28mm A2054210181

Mercedes W205 W213 Front Brake Caliper Housing Left N/S 305x28mm is an original Mercedes braking system component, designed for the front left axle. This used brake caliper ensures factory-standard mounting geometry and proper brake pad guidance, which translates into stable, predictable braking and safe vehicle operation.

Specifications and technical data

• SKU: A2054210181-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054210181
• Substitutable numbers: A2054210181, A 205 421 01 81, A2054210394, A 205 421 03 94
• Location on the vehicle: Front, Left
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper belongs to the Brake calipers and carriers category and is designed for installation on the front left side of the vehicle. It is compatible with a brake disc with a diameter of 305 mm and a thickness of 28 mm, which is a standard configuration for the manufacturer's mid-size luxury models. This fitment ensures even pressure of the pads against the disc and proper heat dissipation during intensive braking.

Construction and operating parameters

The caliper is constructed as a hydraulic component that works with the factory brake master cylinder and brake lines. The properly selected piston diameter and a housing adapted to the 305x28 mm disc allow for stable braking force while maintaining pedal comfort. The design provides precise pad guidance, which reduces uneven wear and minimizes the risk of vibrations during braking.

The original origin of the caliper ensures the maintenance of proper housing rigidity and compatibility with factory brackets and mounting hardware. As a result, the component works well with the stock suspension and vehicle safety systems, such as ABS or traction control, if present in the specific vehicle.

Benefits of using an original caliper

Using an original caliper on the front left axle offers a number of practical technical benefits:

• maintenance of factory braking characteristics on the driver's side,
• proper fitment for the 305x28 mm disc without the need for modifications,
• compatibility with standard brake pads intended for this system,
• easier diagnostics and service due to compliance with manufacturer documentation.

For the user, this means predictable vehicle behavior during braking, no installation issues, and the ability to continue servicing the braking system using standard maintenance procedures. When replacing a single caliper on the front axle, it is advisable to check the condition of the component on the opposite side to maintain symmetrical brake performance.

Practical service application

This caliper model is particularly useful for repairs involving seized guide pins, or damage to the piston or housing on the front left side. Thanks to the factory fitment for the 305x28 mm disc, it can be used both for standard replacement of a worn component and for restoring full system efficiency after brake overheating. In service workshops, such a caliper allows for shorter repair times, as it does not require adaptation or mounting modifications.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other components from the same group, such as additional calipers, carriers, or mounting hardware, check out the available parts in the Mercedes Brake calipers and carriers category.

Safe selection of a used caliper

When choosing a used brake caliper, it is crucial to verify compatibility with the specific vehicle version, disc diameter and thickness, and placement on the vehicle. It is also worth paying attention to the condition of the working surfaces, threads, and brake line mounting points. Detailed tips on the safe selection of braking system components from the secondary market can be found in the guide "Second-hand braking system: how to safely choose discs, calipers, and ABS?", which discusses the verification process for such parts step by step.

Summary

Mercedes W205 W213 Front Brake Caliper Housing Left N/S 305x28mm is an original component from the Brake calipers and carriers category, designed for the front left axle of the vehicle. Thanks to its compatibility with the 305x28 mm disc and its factory design, it provides a solid foundation for restoring proper braking efficiency and stable vehicle handling in daily use.