Mercedes W204 W212 Exhaust Filter Mount Particulate Bracket Support OM651 Diesel

Mercedes W204 W212 Exhaust Filter Mount Particulate Bracket Support OM651 Diesel is a component from the Engine mounts group, designed for diesel units in the popular W204 series. A stable air filter mount in the OM651 diesel engine ensures proper routing of intake hoses, reduces vibrations, and supports the safe operation of the entire powertrain.

Specifications and technical data

• SKU: A2044900740
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044900740
• Substitutable numbers: A2044900740, A 204 490 07 40
• Fuel type: Diesel
• Category: Engine Mounts

Purpose and function in the powertrain

The air filter mount in Mercedes models with the OM651 engine is responsible for the rigid yet flexible seating of the filter housing in the engine bay. In practice, this means:

• reduction of vibration transmission from the power unit to the filter housing,
• maintaining the correct position of intake hoses,
• reducing the risk of cracks and leaks in the intake system,
• stable operation of accessories under conditions typical for diesel engines.

In the case of diesel units, where significant vibrations occur, a properly selected mount from the Engine mounts group is crucial for the durability of adjacent components and the comfort of the entire system.

Technical characteristics and compatibility

The presented mount has been designed specifically for the OM651 engine in the W204 body, which ensures proper geometry and fitment to factory mounting points. The component is intended for vehicles with a diesel engine, so its design accounts for the loads characteristic of this power unit.

Its original Mercedes origin means it maintains factory quality standards and complies with the original design solutions in the engine bay. As a result, the mount works correctly with other intake system components and adjacent engine mounts.

Component condition and service application

The offered air filter mount is a used component, which allows for economical repair while maintaining the manufacturer's original specifications. This type of part is suitable both for standard replacement of a worn mount and for broader service work within the power unit, e.g., after dismantling accessories or during intake system repairs.

Choosing a used OEM component is particularly beneficial for vehicles in intensive use, where a reasonable balance between repair costs and maintaining the factory design is important. A well-fitted mount helps limit unwanted vibrations and noise, which translates into more predictable vehicle behavior.

Benefits of using an original mount

Using an original air filter mount in a Mercedes W204 with an OM651 engine brings a number of practical benefits:

• factory fitment to mounting points in the engine bay,
• maintaining proper routing of intake hoses,
• reduction of vibration and noise under typical diesel operating conditions,
• consistency with other elements from the engine mount and support group.

Thanks to this, replacing a worn element with an original mount allows for restoring the proper operating conditions of the intake system without the need for vehicle modifications.

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 powertrain supports, check the available parts in the Mercedes engine mounts category.

If you are considering broader work on the power unit, including improving throttle response or overall dynamics, a practical guide on powertrain modifications may be helpful – you can find it in the article How to increase engine power: a practical guide to engine tuning with used parts.

To better plan your service budget and consciously use the used parts market, it is also worth reading material describing the cost-effectiveness of such solutions: Rising repair costs and the boom in used parts – how to save on car service?.