Mercedes-Benz M-Class ML W164 Hydraulic Brake Pump Unit Holder Bracket Mount

Mercedes‑Benz M‑Class ML W164 Hydraulic Brake Master Cylinder Mounting Bracket is an original structural component of the braking system, designed specifically for the M-Class W164 generation models. Precise geometry and factory mounting points ensure stable positioning of the master cylinder assembly, which translates to safe and predictable braking system operation. A used OEM part is a sensible choice for servicing when you want factory fitment without the cost of new parts.

Specifications and technical data

• SKU: A1644310240
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1644310240
• Substitutable numbers: A1644310240, A 164 431 02 40, A1644310140, A 164 431 01 40, KZ
• Category: Other Brake Parts

Bracket Purpose and Function

This bracket serves as the structural base for the hydraulic brake master cylinder assembly in the Mercedes ML W164. It is responsible for:

• stable support of the master cylinder in the engine bay,
• maintaining the correct position relative to the brake lines and other system components,
• reducing unwanted vibrations transmitted to the master cylinder body,
• ensuring compliance with the vehicle's factory mounting points.

Thanks to this, the braking system maintains the rigidity and geometry designed by the manufacturer, which is important for both braking effectiveness and the durability of adjacent components.

Original Origin and Compatibility

The bracket is an original Mercedes part, sourced from a dismantled vehicle, which guarantees full compliance with the factory technical documentation for the M‑Class ML W164. This means:

• secure fit to factory mounting holes,
• proper guidance and support of the brake master cylinder assembly,
• no need for modifications, custom adapters, or interference with the bodywork.

Compared to aftermarket alternatives, the original bracket maintains identical geometry and rigidity, which facilitates installation and reduces the risk of incorrect master cylinder positioning.

Condition, Usability Advantages, and Installation

The part is in used condition, which for structural brackets is often an economical and technically justified solution. The bracket does not contain any wear parts, so with correct selection for the vehicle model, it can be used again without issues.

The main advantages of this solution include:

• factory structural rigidity – maintaining the designed braking system operation,
• ease of installation – utilizing original mounting points,
• compatibility with the factory braking equipment of the ML W164,
• cost-effectiveness – the ability to restore correct master cylinder mounting without investing in a new part.

Technical Support and Part Selection

When selecting a bracket for a specific ML W164 engine version, it is advisable to verify compatibility with your braking system and body configuration. If in doubt, comparing the shape and mounting points with the currently installed part can be helpful.

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other parts from the same group, such as the brake master cylinder, brake lines, or auxiliary mounts, check the available parts in the Other Mercedes category.

More About Drivetrain and Braking Systems

When working on drivetrain and braking systems in premium cars, it is beneficial to understand the structural differences between various manufacturers' solutions. A broad overview of such systems, including the characteristics of drivetrains and their cooperating components, can be found in the article xDrive, 4Matic, quattro, or 4Motion – A Comparison of AWD Systems from BMW, Mercedes, Audi, and VW.

If you are also interested in comparing sports braking systems and chassis in high-end cars, check out the entry Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses, among other things, differences in the construction of brakes and supporting elements.