Bracket Mercedes W204 W906 W639 Diesel OM651 Intake Manifold Holder A6510940641

Mercedes W204 W906 W639 Diesel OM651 Intake Manifold Bracket is an original part from the Intake Manifolds group, designed for OM651 diesel engines in Mercedes vehicles. The precise geometry of the bracket ensures stable support for the manifold, which translates to secure mounting of accessories in the Diesel engine unit and reduction of unwanted stresses in the intake system.

Specifications and technical data

• SKU: A6510940641
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510940641
• Substitutable numbers: A6510940641, A 651 094 06 41
• Fuel type: Diesel
• Category: Intake Manifolds

Purpose and Function in the Intake System

The intake manifold bracket in the OM651 engine is responsible for rigid, repeatable positioning of the manifold relative to the cylinder head and engine block. In diesel engines, where boost pressures and thermal loads are higher than in gasoline engines, stable manifold support is crucial for:

• maintaining the seal of connections in the intake system,
• reducing vibrations transmitted to the manifold and accessories,
• limiting the risk of cracks and deformations in intake components,
• preserving the correct airflow through the intake channels.

Thanks to this, the bracket supports the smooth operation of the diesel engine, facilitates stable cylinder filling parameters, and contributes to the correct operation of combustion control systems.

Compatibility with Mercedes Models and OM651 Diesel Engine

The presented bracket is designed for use in Mercedes W204, W906, and W639 vehicles equipped with the OM651 diesel engine. This means its shape, mounting points, and structural rigidity are adapted to the architecture of these engine units and to the factory intake manifold used in this engine family.

Selecting a part from the same construction group as original Intake Manifolds ensures compliance with factory assembly tolerances, which is particularly important when servicing diesel engines, where even minor deviations can affect running smoothness and diagnostics.

Characteristics of a Used Part

The bracket is a used part, meaning it has been dismantled and retains its original geometry and intended function. This type of structural component does not contain moving parts or electronics, so when correctly selected for a specific OM651 engine, it can be an effective alternative to new components, especially for vehicles used intensively or in older model years.

Using an original bracket from the same product line as factory Mercedes components promotes material and structural consistency within the entire intake system, which facilitates subsequent servicing and diagnosis of potential leaks.

Benefits of Using a Dedicated Intake Manifold Bracket

Replacing or supplementing the intake manifold mounting with a dedicated bracket offers a range of practical benefits:

• maintaining the factory position of the manifold relative to the cylinder head and engine accessories,
• reducing the loads acting on the manifold bolts and seals,
• limiting the risk of intake system leaks in diesel engines,
• easier, predictable installation thanks to matched mounting points.

For workshops specializing in OM651 engine service and for owners who care about the proper functioning of the intake system, using the correct bracket is an important element of comprehensive engine maintenance.

Related Parts and Technical Knowledge

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

When working with the intake and exhaust systems in diesel vehicles, it is worth considering the relationship between airflow and exhaust gas removal. An extended discussion of issues related to gas flow, manifold selection, and the impact of these components on engine performance characteristics can be found in the article Performance Exhaust System: Used Manifolds and Sport Catalytic Converters on the Road.

If your goal is to maintain vehicles from the years when engines like the OM651 were popular in good condition long-term, tips on the rational use of dismantled parts may also be helpful – discussed in more detail in the material Second Life for Youngtimers – How Used Car Parts Rejuvenate Cars from 1998–2012.