Engine Mount Mercedes W212 Diesel OM642 Right O/S Support Holder A2042402317

Engine Mount Mercedes W212 Diesel OM642 Right O/S Support Holder is a precisely fitted powertrain mounting bracket for the passenger side, designed for Mercedes vehicles equipped with the OM642 diesel engine. This component from the Engine mounts category stabilizes the powertrain, reduces vibrations, and improves the refinement of the drivetrain, which translates into driving comfort and protection of other components in the engine bay.

Specifications and technical data

• SKU: A2042402317
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2042402317
• Substitutable numbers: A2042402317, A 204 240 23 17, BG
• Location on the vehicle: Right
• Fuel type: Diesel
• Category: Engine Mounts

Purpose and technical function

The described mounting bracket is designed to work on the right side of the vehicle, in the immediate vicinity of the diesel power unit. Its task is to transfer loads from the engine to the chassis while damping torsional vibrations and oscillations generated by the OM642 diesel engine. As a result, this component helps maintain the correct geometry of the drivetrain, reduces loads on other mounts, and limits the transmission of vibrations to the cabin.

A properly selected and functional right-side engine mount is particularly important during dynamic acceleration, engine braking, and while idling. Stable support of the power unit influences the precision of the drivetrain operation, reduces unwanted noises, and improves the overall driving experience.

Compatibility with the OM642 Diesel engine

Diesel engines generate characteristic vibrations and loads, which is why the mount must be adapted to their specific requirements. The presented engine mount is intended for use with the OM642 unit, which means appropriately selected stiffness, geometry, and mounting points. Matching the specific fuel type and engine design reduces the risk of excessive wear and minimizes the possibility of play or unwanted stresses in the system.

The correct right-side mount also affects the operation of auxiliary components in the engine bay, such as hoses, wiring harnesses, or accessories, which are less exposed to excessive movement of the powertrain. This, in turn, helps maintain stable operating conditions for the entire system and reduces the risk of secondary failures.

Performance characteristics and installation

The engine mount is a structural component that works continuously in practice – both while driving and when the vehicle is stationary with the engine running. Using a dedicated bracket on the right side allows you to:

• maintain the correct position of the engine relative to the chassis,
• limit the transmission of vibrations and noise into the cabin,
• reduce loads on other mounts and powertrain suspension components,
• maintain stable drivetrain operation under typical and dynamic driving conditions.

The component comes from disassembly, which means it is an original Mercedes part that retains its factory geometry and mounting points. With proper installation, using the correct tools and tightening torques, it is possible to achieve stable, predictable powertrain behavior without the need for additional modifications.

Benefits of using an original engine mount

Using an original engine mount in a Mercedes W212 with an OM642 diesel unit offers a number of practical benefits. The most important include:

• Factory fitment – maintaining the original engine position and compatibility with other drivetrain components.
• Consistency with the body structure – no need for modifying mounting holes or using additional adapters.
• Stable vibration damping – adapted to the operating characteristics of the diesel engine.
• Support for the durability of other components – lower loads on hoses, transmission mounts, and adjacent elements.

For users planning long-term vehicle operation, proper handling of parts from disassembly is also important. Practical tips on the maintenance and operation of such components can be found in the article: How to extend the life of used car parts?

Further engine area upgrades

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 other power unit supports, check out the available parts in the Mercedes engine mounts category.