Air Box Mercedes W204 Diesel OM642 Air FIlter Housing Right A6420940204

Air Box Mercedes W204 Diesel OM642 Air FIlter Housing Right is an original intake system component designed for OM642 diesel engines, mounted on the right side of the engine bay. Designed by Mercedes, the housing ensures stable airflow to the filter and subsequent intake components, which promotes smooth operation of the diesel engine. This used OEM component is a sensible choice for servicing or repairing the intake system in premium class vehicles.

Specifications and technical data

• SKU: A6420940204
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420901601
• Substitutable numbers: A6420940204, A 642 094 02 04, A6420901601, A 642 090 16 01
• Location on the vehicle: Right
• Fuel type: Diesel
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter housing on the right side in Mercedes models with the OM642 engine is responsible for the airtight routing of intake air and the proper seating of the filter element. A correctly selected housing:

• stabilizes airflow in the diesel engine,
• limits the ingress of contaminants into the filter element,
• supports the maintenance of proper combustion parameters,
• ensures correct mounting at factory body and accessory points.

Thanks to its fitment for a specific side of the vehicle, the housing works in conjunction with other intake elements, covers, and ducts, which facilitates service and maintains the factory airflow geometry.

Benefits of using an original air filter housing

Choosing an original housing from the Air filter housings category translates into predictable intake system behavior and compatibility with factory mounts. For diesel engines such as the OM642, the proper housing is important for:

• maintaining intake system airtightness under variable loads,
• reducing the risk of sucking in unfiltered air,
• maintaining proper cooperation with sensors and other intake components,
• reducing unwanted vibrations and noise in the engine bay.

Original fitment facilitates installation and removal during inspections, and also minimizes the risk of problems resulting from the use of parts of uncertain origin.

Installation and operational characteristics

The housing is designed for installation on the right side of the vehicle, in the diesel engine intake system. The design provided by the vehicle manufacturer allows for:

• the use of factory mounting points,
• cooperation with original intake ducts and covers,
• maintaining proper airflow to the filter and intake manifold.

The used OEM element is a practical solution when replacing a damaged housing, especially when you want to maintain the factory configuration of the intake system without the costs of purchasing a new part.

Application in Mercedes vehicles with diesel engines

The housing was developed with diesel units in mind, where a stable and clean air supply is crucial for smooth operation and the durability of accessories. In diesel engines, the appropriate air filter housing helps maintain:

• consistent air-fuel mixture parameters,
• proper operation of the turbocharger and associated components,
• an appropriate level of protection against dust and fine contaminants.

Air Box Mercedes W204 Diesel OM642 Air FIlter Housing Right is therefore an essential element for comprehensive maintenance of the intake system in vehicles of this series.

Intake system expansion and related components

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

For larger modernization or retrofitting projects, it is also worth exploring the possibilities of using used OEM elements from higher equipment versions – you will find practical tips in the article Retrofitting in VAG and BMW group cars – how to wisely use used parts for retrofitting.