Mercedes R172 Brake Caliper Rear Right O/S Wheel Brake Unit A1724230281

Mercedes R172 Rear Brake Caliper Right Side is a component from the Brake Calipers and Brackets category, designed for the rear right axle of Mercedes vehicles. This used OEM part ensures a factory fit, stable braking performance, and predictable system behavior in daily use.

Specifications and technical data

• SKU: A1724230281
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1724230281
• Substitutable numbers: A1724230281, A 172 423 02 81
• Location on the vehicle: Rear, Right
• Category: Calipers & Brackets

Intended Use and Vehicle Placement

The presented brake caliper is designed for installation on the rear right wheel of the vehicle. It is responsible for evenly pressing the pads against the disc, which translates to stable deceleration and proper functioning of the rear axle braking system. Precise placement on the vehicle simplifies part selection during servicing and minimizes the risk of ordering errors.

Technical Characteristics of the Caliper

As a component within the Brake Calipers and Brackets group, this model converts hydraulic pressure into mechanical force acting on the brake pads. The design intended by the vehicle manufacturer ensures:

• stable pad guidance in the caliper bracket,
• adequate rigidity of the caliper body,
• proper cooperation with the factory brake master cylinder and lines,
• compatibility with braking assistance systems such as ABS or ESP (according to the specific car's configuration).

By maintaining its original geometry, the caliper retains the correct position relative to the disc, which reduces uneven pad wear and improves braking comfort.

Benefits of Using an Original Mercedes Caliper

Using an original caliper on the rear axle of a Mercedes vehicle offers a range of practical service and user benefits:

• Factory Fit – no need for modifications, drilling, or adaptations; installation according to manufacturer's documentation.
• Compatibility with Other System Components – maintains the braking characteristics of the rear axle as intended by the engineers.
• Predictable Vehicle Behavior – even distribution of braking forces between axles promotes stability during sudden braking.
• Possibility to use standard pads and discs intended for the specific model, without the need to search for replacements with altered dimensions.

Condition, Origin, and Service Application

The offered caliper is a used Mercedes part that can be utilized for standard brake system repairs as well as for partial reconstruction of the rear axle after a collision or intensive use. This type of component is particularly useful when you want to maintain the vehicle's original specifications while optimizing repair costs compared to new parts.

Prior to installation, the standard service procedure is recommended: inspection of working surfaces, checking piston operation, replacing seals and protective rubber elements, and thorough bleeding of the system after installation. This approach allows for the full utilization of the part's potential and ensures safe operation.

Selecting Used Brake System Components

When choosing a used brake caliper, it is crucial to pay attention to compatibility with the specific vehicle version, its placement on the vehicle, and the parameters intended by the manufacturer. To streamline the selection process and avoid common mistakes when purchasing used brake components, it is advisable to refer to the practical tips contained in the article Second-Hand Brake Systems: How to Safely Select Discs, Calipers, and ABS?, where you will find a detailed checklist useful for workshop work and DIY repairs.

If you are planning a comprehensive service for the rear axle and also need other components responsible for transmitting braking force in vehicles of this brand, check the available parts in the Mercedes Brake Calipers and Brackets category.