Air Duct Mercedes H243 W247 Air Inlet Channel Intake Pipe Duct A2478309900

Air Duct Mercedes H243 W247 Air Inlet Channel Intake Pipe Duct is an original air intake system component designed to guide the airflow from the inlet to subsequent intake components. As a body part from the Claddings, trim strips and decorations group, it is responsible for the precise routing of the air channel and for ensuring an aesthetic and organized layout within the engine bay. This used OEM part ensures proper flow geometry, which promotes stable operation of the power unit.

Specifications and technical data

• SKU: rhd-A2478309900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2478309900
• Substitutable numbers: A2478309900, A 247 830 99 00
• Category: Trim

Purpose and technical function

The air intake duct in Mercedes H243/W247 models is responsible for directing air into the intake system while maintaining the appropriate rigidity and shape of the channel. The component's design is matched to the factory engine bay layout, ensuring the correct distance from adjacent components and proper airflow guidance.

The original inlet channel reduces the risk of unwanted turbulence, leaks, and rubbing against other body parts. This ensures stable operating conditions for sensors and other intake components, and also facilitates vehicle maintenance, as the duct routing complies with the manufacturer's documentation.

Construction and body fitment

The element belongs to the Claddings, trim strips and decorations body group, which means that beyond its technical function, it also plays a role in organizing the space within the engine bay. The shape of the duct is designed to:

• precisely fit into the factory mounting points in the body,
• maintain an appropriate distance from hot exhaust system and engine components,
• reduce the transmission of vibrations to adjacent components,
• maintain an aesthetic, organized layout of the air installation.

Thanks to the factory fitment, installation is performed without the need for modifications, and the duct geometry remains consistent with the assumptions of Mercedes engineers, which is particularly important for maintaining repeatable operating conditions of the intake system.

Benefits of using an original air intake duct

Using an original air intake duct in the Mercedes H243 W247 allows for maintaining the structural integrity of the entire air intake system. Key advantages include:

• Factory compatibility – the element is designed for a specific body platform, which minimizes the risk of installation issues.
• Stable airflow – a properly shaped channel promotes even air delivery to further parts of the intake.
• Consistency with other claddings and covers – the duct works harmoniously with other engine bay components, which facilitates service and diagnostics.
• Reduction of unwanted vibrations and noise in the intake area thanks to proper routing and mounting.

Component condition and service application

The offered air intake duct is a used part, making it a reasonable choice for vehicle service when the priority is to maintain the original design while optimizing costs. This type of component is suitable both for replacing a damaged inlet channel and for restoring the factory configuration after previous intake modifications.

Thanks to the preservation of the original geometry and mounting points, installation is predictable, and the entire system remains consistent with the manufacturer's specifications. This is particularly important in vehicles where repeatable operating parameters and ease of subsequent inspections are essential.

Expansion of the body and intake system in Mercedes

If you are planning a comprehensive repair or upgrade of the engine bay area in your Mercedes and need other elements from the same group, such as covers, grilles, or additional finishing profiles, check the available parts in the Claddings, trim strips and decorations Mercedes category.

If you are interested in a broader context of operating and servicing vehicle components, including the conscious and safe selection of used parts, the guide regarding the alternator may be helpful – you can find it in the article When is it worth replacing an alternator with a used one: a practical guide for drivers.