Mercedes W166 Turbocharger Housing Cover Connector OM651 A6510907080

Mercedes W166 Turbocharger Housing Cover Connector OM651 is a precision turbocharging system component designed for Mercedes diesel engines. It is responsible for a stable and airtight connection within the turbocharger, which translates into the correct operation of the power unit. By maintaining the factory geometry and mounting points, it serves as a practical service solution for repairs or upgrades of the turbocharging system in diesel-powered vehicles.

Specifications and technical data

• SKU: A6510907080-5
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510907080
• Substitutable numbers: A6510907080, A 651 090 70 80
• Fuel type: Diesel
• Part type: Turbocharger Hose
• Category: Turbos & Parts

Purpose and function in the turbocharging system

The turbocharger housing cover connector in Mercedes W166 models running on diesel fuel plays a significant role in the charge air routing area. It is responsible for the proper positioning and protection of the connector, reduces the risk of leaks, and helps maintain stable operating conditions for the turbocharger across a wide range of loads. In practice, this component supports:

• maintaining the tightness of connections within the turbocharger,
• proper flow of charge air in the diesel engine,
• stable mounting of the connector in the engine bay,
• reducing the impact of vibrations and thermal loads on the turbocharging system.

Benefits of using an original Mercedes component

The original housing cover connector from the Turbochargers and parts group ensures a perfect fit to the factory design of the OM651 unit without the need for modifications. Using a component sourced from Mercedes allows for compliance with service documentation, facilitates installation, and minimizes the risk of future compatibility issues. The main advantages include:

• factory mounting points matched to the turbocharging system in the W166,
• consistency with other diesel engine accessory components,
• easier diagnostics and service maintenance due to the preservation of the original architecture.

Application in OM651 diesel engines

The OM651 diesel engines used in the Mercedes W166 operate under significant thermal and pressure loads, which is why proper charge air routing is of great importance for the durability of the unit. The turbocharger housing cover connector helps maintain stable turbocharger operating conditions, which promotes uniform boost and predictable torque characteristics. Replacing a worn or damaged component with an original housing cover connector is particularly recommended during:

• repairs following a turbocharger failure,
• servicing the intake system in a diesel engine,
• comprehensive maintenance of the OM651 unit in SUV class vehicles.

Characteristics of the used component

The offered component is in a used condition, which allows for an economical restoration of the turbocharging system's efficiency while maintaining the original Mercedes specification. For many users, this is a reasonable compromise between the cost of repair and maintaining the factory design of the intake system. A used component from this group, when installed correctly, can effectively perform its function in the daily operation of the vehicle.

Expanding turbocharging and drivetrain service

In Mercedes vehicles with 4Matic all-wheel drive, the diesel engine's turbocharging system works in conjunction with advanced drivetrain systems. For a better understanding of the relationship between engine performance, the turbocharger, and AWD systems, it is worth reviewing material comparing various solutions used by major manufacturers. A detailed discussion can be found in the article xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi and VW.

Related items from the Mercedes Turbochargers and parts group

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as turbocharger housings, intake hoses, or additional mounting elements, check the available parts in the Mercedes Turbochargers and parts category. For vehicle owners considering long-term operation or future resale of the car, information on the impact of using original components on vehicle value may also be useful. This topic is discussed in more detail in the article Original used parts vs. resale price – how not to lose money?, which shows how to consciously select used components to maintain the car's attractiveness on the secondary market.