Mercedes W212 Engine Strut Suspension Mount OM651 A2122420632

Mercedes W212 Engine Strut Suspension Mount OM651 is an original component from the Holders, mounts and mounting parts group, designed for the stable seating of the OM651 power unit in the W212 chassis. It ensures controlled load transfer from the engine to the body, reducing vibrations and noise while supporting the correct geometry of the drivetrain.

Specifications and technical data

• SKU: A2122420632
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2122420632
• Substitutable numbers: A2122420632, A 212 242 06 32
• Part type: Engine Mount
• Category: Mounts, Brackets & Hardware

Purpose and technical function

The engine mount in the W212 model with the OM651 unit is responsible for a flexible yet stable connection between the powertrain and the subframe. Properly selected stiffness and damping characteristics allow for the reduction of vibration transfer to the body, which translates into smoother engine operation, reduced resonance, and better acoustic comfort in the interior. The component from this design group is crucial for:

• maintaining the correct position of the engine relative to the transmission and drive shafts,
• reducing torsional vibrations and tremors at idle and during acceleration,
• protecting other mounts and accessory components from excessive loads.

Benefits of using an original engine mount

Using an original mount from the Holders, mounts and mounting parts group in a Mercedes W212 allows for maintaining the factory performance parameters of the drivetrain. The design of the mount is tailored to the characteristics of the OM651 engine, ensuring it works correctly with other support points without requiring interference with factory engineering solutions. The main advantages include:

• factory fitment to the geometry of the W212 engine bay with the OM651 unit,
• preservation of the vibration damping characteristics intended by the manufacturer,
• reduction of the risk of premature wear of other mounts and accessory components.

Installation characteristics

The engine mount is designed for installation in existing mounting points in the W212 chassis, which facilitates service work and reduces replacement time. With proper installation, adhering to the tightening torques recommended by the manufacturer, it is possible to restore stable engine support without the need to modify other components. Replacing a worn mount with an original component of this type is particularly important in the case of symptoms such as excessive vibration at idle, knocking when starting, or noticeable vibration transfer to the body. A correctly selected mount helps minimize these phenomena and restore predictable drivetrain behavior.

Why choose a used original part for your Mercedes

In the premium car segment, such as Mercedes, using original engine mounting components often ensures better parameter repeatability than cheaper aftermarket replacements. A used OEM component with preserved geometry and a design consistent with the factory project allows for maintaining proper cooperation of the OM651 engine with other drivetrain elements. If you want to better understand why, in current market realities, used original components for premium brands are so eagerly chosen by conscious drivers, it is worth reading the article: Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.

Expanding your Mercedes mount upgrades

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional mounts, brackets, or mounting hardware, check out the available parts in the Mercedes holders, mounts and mounting parts category.