Mercedes W166 OM651 Engine Charged Air Line Hose Pipe Tube A6510900942

Mercedes W166 OM651 Engine Charged Air Line Hose Pipe Tube is an original intake system component designed for diesel units, ensuring stable airflow to the engine. Thanks to its precise fit for the OM651 design and its classification within the Air and fuel intake sensors group, the hose supports the proper operation of the diesel supply system and helps maintain correct combustion parameters. It is a practical solution for users seeking a proven component with factory geometry and solid build quality.

Specifications and technical data

• SKU: A6510900942
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510900942
• Substitutable numbers: A6510900942, A 651 090 09 42
• Fuel type: Diesel
• Category: Air Intake & Fuel Sensors

Purpose and function in the intake system

The Mercedes W166 OM651 Engine Charged Air Line Hose Pipe Tube is responsible for the sealed and directed delivery of air to the diesel engine in the W166 body. A properly selected component in this section of the intake system reduces pressure drops, minimizes the risk of leaks, and supports the stable operation of sensors from the Air and fuel intake sensors group, which monitor intake air parameters. Proper flow is crucial for effective turbocharging, correct fuel dosage, and maintaining smooth diesel engine operation.

Benefits of using an original air hose

Using an air hose dedicated to the W166 with the OM651 engine allows for maintaining factory flow characteristics and compatibility with diesel unit accessories. In practice, this means:

• secure fit to mounts and routing in the engine bay,
• stable cooperation with air and fuel intake sensors,
• reduced risk of errors related to intake leaks,
• maintenance of predictable diesel engine operating parameters.

For the user, this translates into more predictable engine behavior, easier diagnostics, and the ability to maintain consistency with the vehicle's factory configuration.

Application in Mercedes diesel vehicles

The hose has been designed to work with a diesel engine, which is why its geometry and cross-section are adapted to the airflow characteristics of Diesel units. A properly selected component in this part of the intake system helps maintain:

• proper conditions for the turbocharger and supply system operation,
• stable readings from air and fuel sensors,
• consistency with factory engine control unit maps.

As a result, the air hose constitutes a functional supplement to the entire intake system, supporting both daily operation and subsequent service diagnostics.

Characteristics of the used component

The offered hose comes from the used components segment, which allows for combining reasonable cost with the preservation of the original design intended by the manufacturer. Choosing such a solution is particularly beneficial for maintenance repairs, where the priority is to maintain factory hose routing while optimizing the service budget. A used component with preserved mounting geometry facilitates installation and limits the need for additional modifications.

Technical support and selection by part numbers

The air hose is linked to a specific OEM part number and has interchangeable numbers, which facilitates precise identification and selection for a given vehicle. In practice, selection by part numbers allows for avoiding compatibility issues and speeds up the service process, especially in the case of more complex intake systems in diesel engines.

If you want to better understand how to safely use second-hand components, how to verify compatibility by OEM numbers, and what the installation and diagnostic process looks like, check out our guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

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 intake hoses, measuring elements, or components cooperating with the supply system, check the available parts in the Mercedes air and fuel intake sensors category.