Mercedes W164 V251 Rear Brake Disc Left Right Wheel N/O/S Set A1644231212

Mercedes W164 V251 Rear Brake Disc Left Right Wheel N/O/S Set is an original set designed for the left and right rear wheels, intended for the factory braking system of Mercedes vehicles. This set ensures the maintenance of proper geometry and braking characteristics, which translates into stable, predictable braking. It is a solution for drivers who want to maintain consistency with factory specifications and avoid issues with fitting aftermarket replacements.

Specifications and technical data

• SKU: A1644231212-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1644231212
• Substitutable numbers: A1644231212, A 164 423 12 12
• Location on the vehicle: Rear, Right, Left
• Part type: Brake Disc Rotor
• Category: Brake Disc Rotors

Purpose and compatibility with the braking system

The presented set includes rear brake discs designed for installation on the left and right side of the rear axle. This allows for the uniform replacement of both working elements, which is particularly important for maintaining symmetrical distribution of braking forces and vehicle stability during intense braking.

The original Mercedes origin ensures the maintenance of the correct working profile, appropriate nominal thickness, and compatibility with the stock calipers and brake pads used in W164 and V251 models. Such fitment reduces the risk of vibrations, uneven wear, and unwanted noises during system operation.

Technical characteristics and benefits of use

The set of rear brake discs in this configuration has been designed to operate in demanding conditions typical for SUVs and vehicles with higher curb weight. The disc construction is adapted to the stock braking system, which allows for maintaining:

• proper contact surface with the brake pad,
• stable heat dissipation during repeated braking cycles,
• consistent operation with assistance systems (ABS, ESP) factory-installed in the vehicle.

Thanks to maintaining the original specification, the brake pedal response remains predictable, and the braking force is distributed according to the vehicle manufacturer's design. This is important both in daily city driving and during longer trips with a full load.

Component condition and installation aspects

The product is offered as a used set of brake discs, which allows for economical system repair while maintaining the original design. This type of solution is often chosen in situations where priority is given to compliance with the factory design and cost reduction compared to new OEM parts.

The placement on the vehicle is clearly defined as rear, right and left side, which facilitates selection and service planning. Installation takes place in the place of the factory discs, using stock mounting points, making the replacement process simple for an experienced mechanic and requiring no system modifications.

Safety of use and selection of used components

When choosing used braking system components, it is crucial to pay attention to compliance with the original specification and the condition of the working surfaces. Properly selected rear brake discs help maintain vehicle stability during braking, limit the extension of braking distance, and reduce the risk of pad overheating.

If you want to deepen your knowledge on the conscious selection of brake components from the secondary market, it is worth reading the guide: Second-hand braking system: how to safely select discs, calipers, and ABS?. You will find practical tips there regarding the assessment of part condition, interpretation of markings, and verification of compatibility.

Additionally, for broader component replacement in the vehicle, the material describing general principles of selecting used subassemblies may be helpful: how to professionally select used car parts, saving time and nerves. This is a good supplement to knowledge when planning larger service works.

Expanding the braking system in a Mercedes

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other elements from the same group, such as additional discs, pads, or brake lines, check the available parts in the Mercedes Brake Discs category.

Using original components within one axle allows for maintaining the consistency of braking characteristics, which is significant both for driving comfort and for the operation of safety systems. By choosing original Brake Discs intended for a specific vehicle generation, you minimize the risk of installation problems and improper system operation in the long term.