Air Filter Box Mercedes W204 W212 OM642 Air Intake Housing Right O/S A6420901601

Visual condition of the part 

The product shows signs of use visible in the photos. 

Air Filter Box Mercedes W204 W212 OM642 Air Intake Housing Right O/S is an original intake system component designed for OM642 diesel engines, mounted on the right side of the engine bay. Engineered by Mercedes, it ensures stable airflow parameters and supports the proper operation of the turbocharged diesel engine. This used component allows for an economical yet technically correct replacement of the part in the factory configuration.

Specifications and technical data

• SKU: A6420904001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420904001
• Substitutable numbers: A6420904001, A 642 090 40 01, A6420901601, A 642 090 16 01, BG
• Location on the vehicle: Right
• Fuel type: Diesel
• Category: Air Filters

Purpose and function in the intake system

The presented filter is dedicated to C-Class and E-Class vehicles from the W204 and W212 families equipped with the OM642 engine, where it is responsible for cleaning the air drawn into the cylinders. Its placement on the right side of the vehicle allows for precise fitting to the factory housing and intake ducts, which limits pressure drops and supports smooth engine operation.

In a high-boost diesel engine, a properly selected air filter is important for:

• maintaining stable airflow to the turbocharger,
• limiting contaminants entering the intake system,
• reducing the risk of accelerated wear of components interacting with the intake air,
• maintaining predictable combustion and exhaust emission parameters.

Benefits of using an original Mercedes filter

The original filter from the Air filters group has been designed for the specific geometry of the OM642 intake system, which translates into proper fitment and repeatable performance parameters. The component's construction is optimized for the flow characteristics of a diesel engine, thereby reducing the risk of unwanted power drops resulting from improper filtration resistance.

Key advantages of using this solution include:

• factory compatibility with the filter housing on the right side of the vehicle,
• preservation of the intake parameters designed by the manufacturer for the diesel engine,
• possibility of using existing mounts and seals without modifications,
• consistency with other air supply system components.

Installation and operational characteristics

The filter is intended for installation in place of the factory component on the right side of the engine bay, which facilitates service and reduces replacement time. The used condition of the part allows for a favorable cost-to-functionality ratio while maintaining the original design intended by the vehicle manufacturer.

In diesel engines, regular inspection and replacement of the air filter affects:

• engine stability under load,
• throttle response in the low and mid-RPM range,
• limiting the ingress of dust into further elements of the intake system.

Application in Mercedes diesel vehicles

Air Filter Box Mercedes W204 W212 OM642 Air Intake Housing Right O/S is intended for diesel units where the intake system is divided into left and right sides. Proper selection of the element for the specific side of the vehicle is essential for maintaining airtightness and correct air routing from the intake to the intake manifold.

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 filter inserts, housings, or intake ducts, check the available parts in the Mercedes air filters category.

Additional technical support

For users interested in a broader context of operating engines of this brand, including the selection of accessories and components interacting with the intake system, the following guide article may be helpful: Reliability under the star – how to take care of engine accessories in popular Mercedes-Benz C and E-Class models?. It allows for better planning of service maintenance and selecting the right components for a specific engine configuration.