Air Filter Box Mercedes W204 W212 OM651 Diesel Air Silencer Housing A6510900901

The Mercedes W204 W212 OM651 Air Filter Housing is a factory original intake system component designed for diesel engines, mounted in the front section of the engine bay. It is responsible for the stable delivery of air to the filter and protects the filter element from contaminants within the engine bay. By maintaining its original geometry, the housing ensures proper airflow and supports the correct operation of the power unit.

Specifications and technical data

• SKU: A6510900901
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510900901
• Substitutable numbers: A6510900901, A 651 090 09 01
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Air Filter Housings

Function and Role in the Intake System

The air filter housing in the OM651 diesel engine plays a crucial role in preparing air for the combustion process. The appropriately shaped filter chamber stabilizes the airflow, reduces turbulence, and helps maintain correct mixture parameters, which translates to efficient engine operation and predictable torque characteristics.

Its placement in the front of the vehicle facilitates the intake of cooler ambient air, which is particularly important for diesel engines, where charge air temperature affects combustion efficiency and stable operation across the full load range.

Compatibility with OM651 Engine and Mercedes Vehicles

The housing has been specifically designed for OM651 units used in Mercedes W204 and W212 models, guaranteeing correct fitment to factory mounting points and compatibility with the original intake system. This means installation requires no modifications or adaptations, and the entire assembly maintains original rigidity and seal integrity.

Its dedication to a specific fuel type – diesel engines – means that the geometry of the channels and the volume of the filter chamber are tailored to the airflow characteristics typical for this power unit, helping to maintain stable vacuum values and reducing the risk of performance drops.

Benefits of Using an Original Air Filter Housing

Using an original air filter housing instead of aftermarket parts with uncertain geometry helps reduce the risk of leaks, improper filter element seating, and uncontrolled intake of unfiltered air. This, in turn, contributes to:

• maintaining the proper cleanliness of air drawn into the engine,
• stable operating parameters for the mass airflow sensor and other sensors in the intake system,
• reducing the risk of accelerated wear of the power unit components.

This component, from the Air Filter Housings category, is a vital link in the entire intake system, and its correct selection is important for both durability and engine running culture.

Product Characteristics and Condition

The presented housing is a used part, sourced from disassembly, allowing for the combination of original manufacturing quality with an attractive purchase price. The used OEM element retains its factory construction, meaning that after installation, it is possible to restore the original operating conditions of the intake system without compromising on fitment.

Due to its intended installation in the front of the vehicle, the housing is designed to work with factory air intake ducts and engine bay shields, facilitating servicing and subsequent maintenance tasks, such as periodic filter element replacement.

More Solutions and Technical Knowledge

If you are considering upgrading or comprehensively servicing the intake system in your Mercedes and require other parts from the air filter housings category for this brand, check the available parts in the Mercedes Air Filter Housings category.

For drivers interested in a broader context of operating diesel and gasoline engines and optimizing repair costs using used parts, an article comparing popular Volkswagen units may be helpful – find more information in the material Volkswagen 1.9 TDI vs 1.4 TSI – Engine Evolution and Repair Costs.