Mercedes W212 OM651 Air Filter Housing Rear Mount Bracket Support A6510900041

Mercedes W212 OM651 Air Filter Housing Rear Mount Bracket Support is a specialized component from the Engine mounts group, designed for OM651 diesel units. It is responsible for providing stable, controlled support for the rear part of the filter-engine assembly in Mercedes E-Class W212 diesel vehicles, reducing vibrations and improving the overall refinement of the powertrain.

Specifications and technical data

• SKU: A6510900041
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510900041
• Substitutable numbers: A6510900041, A 651 090 00 41
• Location on the vehicle: Rear
• Fuel type: Diesel
• Category: Engine Mounts

Purpose and function in the powertrain

The air filter mount in this version operates in the rear part of the engine bay, contributing to the powertrain support system. As a component from the Engine mounts group, it is responsible for:

• damping vibrations transmitted from the OM651 diesel engine to the chassis,
• maintaining the correct geometry of the air filter position relative to the engine and intake,
• reducing noise and vibrations felt in the cabin,
• stabilizing the assembly during acceleration, engine braking, and load changes.

As a result, the intake system maintains proper rigidity, and cooperating components are not exposed to excessive stress resulting from the operation of the diesel unit.

Compatibility with the OM651 engine and diesel system

OM651 diesel engines are characterized by higher torque and specific vibration patterns, which is why the mount used must provide appropriately selected stiffness and flexibility. The described component was designed specifically for this unit, which translates into:

• proper support for the rear part of the assembly in the engine bay,
• preservation of factory operating parameters of the intake system,
• reduction of the risk of cracks in the air filter housing and adjacent components.

Selecting a mount dedicated to a specific fuel type and engine design allows for maintaining the stability of the entire powertrain at a level close to factory solutions.

Installation and operational characteristics

The element is intended for installation in the rear part of the vehicle within the engine zone, in accordance with the factory mounting layout in the Mercedes W212. The design intended for a specific body model facilitates fitting to existing mounting points, which shortens service time and limits the need for modifications.

As a pre-owned aftermarket part, the mount is a cost-effective solution while maintaining original geometry and operating characteristics. It is a practical choice for maintenance repairs when the goal is to restore proper powertrain support without interfering with the vehicle's construction.

Benefits of using a dedicated mount

• Stable filter-engine assembly operation – reduction of unwanted movements and vibrations in the rear part of the engine bay.
• Better diesel refinement – reduction of vibrations transmitted to the chassis and vehicle interior.
• Preservation of factory geometry – proper alignment of the air filter relative to the OM651 engine and intake ducts.
• Reasonable repair costs – a used element from the Engine mounts group allows for reducing expenses when servicing the powertrain.

Related components and further reading

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 vibration damping elements, check the available parts in the Mercedes engine mounts category.

When working with diesel units, it is also worth expanding your knowledge about the specifics of modern diesel engines and the used parts market – the material comparing popular diesel designs may be helpful, available in the article BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels, which shows how engine characteristics influence the selection and operation of components.