Mercedes W204 Brake Caliper Rear Right O/S Wheel Brake Unit A2044230281

Mercedes W204 Rear Right Brake Caliper A2044230281 is an original brake system component from the Brake Calipers and Brackets group, designed for installation on the rear right axle of the vehicle. Thanks to its factory design dedicated to Mercedes W204 models, it ensures precise pad guidance, stable piston operation, and predictable brake system response. This is a solution for users who expect consistency with factory specifications and want to maintain proper braking parameters.

Specifications and technical data

• SKU: A2044230281-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044230281
• Substitutable numbers: A2044230281, A 204 423 02 81, A2044230194, A 204 423 01 94, BG
• Location on the vehicle: Rear, Right
• Category: Calipers & Brackets

Intended Use and Vehicle Placement

The presented caliper is designed to operate on the rear right side of the vehicle, which is crucial for correct brake force distribution and the operation of assistance systems. Proper placement on the vehicle minimizes the risk of uneven pad wear and reduces the possibility of vibrations and noises during braking.

Selecting the correct caliper for a specific side and axle of the car is important not only for safety but also for the durability of other system components – discs, pads, and brake lines. Using a component consistent with the original Mercedes design allows for the maintenance of the system's operating characteristics as intended by the manufacturer.

Technical Characteristics and Compatibility

The caliper belongs to the Brake Calipers and Brackets category, meaning it is responsible for generating clamping force of the pads against the disc and for stable guidance of the friction elements. The design intended for the W204 platform has been developed for cooperation with factory discs and pads, ensuring proper geometry, piston travel, and even pressure distribution.

The component has a dedicated OEM part number and related replacement numbers, which facilitates verification of compatibility with the specific engine and equipment version of the vehicle. When selecting, it is advisable to compare the markings with the service documentation or the existing component in the car to ensure that the ordered caliper will work correctly with the current brake system configuration.

Condition, User Benefits, and Application

The offered caliper is a used component, allowing for economical brake system repair while maintaining the original Mercedes design. This type of component is particularly useful for:

• repairs after seized pistons or guides,
• replacement after mechanical damage (e.g., corrosion, impact),
• restoring factory specifications after previous, non-original modifications.

Using an original caliper on the rear right axle helps maintain vehicle stability during emergency braking, even pad wear, and correct cooperation with safety systems such as ABS or ESP (if present in the specific vehicle instance).

How to Safely Select a Used Brake Caliper

When choosing a used brake caliper for a Mercedes, it is worth paying attention to the part number conformity, vehicle placement, and the type of brake system used in the specific model. Consulting a mechanic or a visual comparison with the currently installed component can also be helpful. To better prepare for the purchase and to get a checklist for used brake system components, it is recommended to read the article: Second-hand brake system: how to safely choose discs, calipers, and ABS?.

Expanding the Brake System in a Mercedes

If you are planning a comprehensive repair or modernization of the braking area in your Mercedes and need other elements from the same group, such as additional calipers, brackets, or mounting holders, check the available parts in the Mercedes Brake Calipers and Brackets category.

By using components from the same construction group, it is easier to maintain the technical consistency of the entire system, which translates into predictable vehicle behavior, even wear of friction elements, and stable braking parameters in the long term of operation.