Engine Mount Mercedes W212 Diesel OM642 Right O/S Support Holder A6422233404

Engine Mount Mercedes W212 Diesel OM642 Right O/S Support Holder is a structural component of the powertrain, designed specifically for OM642 diesel units in the W212 body style. It is responsible for providing stable support for the right side of the engine, transferring loads to the chassis, and maintaining the correct geometry of the powertrain assembly. As a result, it ensures smoother engine operation and reduces unwanted vibrations transmitted to the vehicle body.

Specifications and technical data

• SKU: A6422233404
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6422233404
• Substitutable numbers: A6422233404, A 642 223 34 04, BG
• Location on the vehicle: Right
• Fuel type: Diesel
• Category: Engine Mounts

Purpose and function in the powertrain

The right engine mount bracket in the W212 model with an OM642 Diesel engine is a key component for securing the powertrain to the chassis. It is responsible for:

• stably maintaining the right side of the engine in the position intended by the manufacturer,
• proper distribution of forces and torques generated during acceleration, engine braking, and gear shifting,
• working in conjunction with engine mounts to reduce vibrations and noise in the cabin,
• maintaining the correct geometry of the powertrain, which promotes the durability of other components.

A properly selected and fitted bracket is particularly important in diesel engines, where higher torsional loads and vibrations are generated compared to gasoline units.

Design and fitment for Mercedes W212 OM642

The presented engine mount is designed for the right side of the engine bay in Mercedes E-Class W212 generation vehicles equipped with the OM642 unit. The geometry of the mounts, the spacing of the holes, and the shape of the contact surfaces are adapted to the factory mounting points on the chassis and engine block, which facilitates installation and reduces the risk of mounting stress.

This element belongs to the Engine mounts group, working with the appropriate mount on the right side. Proper alignment of the bracket with the mount has a direct impact on ride comfort, vibration levels, and the durability of the entire engine mounting system.

Product characteristics and condition

The bracket comes from dismantling and has the status of a used original part, which in practice means it retains its factory geometry and compatibility with factory mounting points. This type of part is a good choice in situations where:

• mechanical damage to the mount has occurred (e.g., after a collision or impact with an obstacle),
• excessive vibrations occur on the right side despite replacing the engine mount itself,
• it is necessary to restore the factory mounting system after modifications or improper repairs.

A used bracket allows for reduced service costs while maintaining proper fitment for the specific engine and body configuration.

Application in service, repairs, and tuning

The right engine mount is often replaced during major work in the engine area, such as removing the powertrain, timing repairs, major overhauls, or replacing engine mounts. In the case of modifications or tuning of the OM642 unit that increase torque, the condition and quality of the engine mounting components take on additional importance – stable support limits unwanted movements of the powertrain.

If you are interested in how to safely approach engine modifications and use parts from dismantling, it is worth reading the guide: How to increase engine power: a practical guide to engine tuning with used parts. This is a practical supplement to your knowledge when planning work on the powertrain.

Benefits of choosing a used OEM bracket

Choosing an original, used engine mount for a Mercedes W212 with an OM642 unit is a solution that allows you to combine cost control with maintaining proper fitment. In practice, this means:

• factory fitment with the engine block and chassis,
• no need for modifications during installation,
• maintaining the stiffness of the mounting system as intended by the manufacturer.

If you want to better understand how to use the used parts market wisely and where to look for savings in service, the following article may be helpful: Rising repair costs and the boom in used parts – how to save on car service?. It will allow you to better plan your repair budget while maintaining an appropriate level of quality.

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