Mercedes ML320 CDI Diesel Turbocharger Turbo Actuator Motor A6420900780

The Mercedes ML320 CDI Diesel Turbine Turbocharger is an original equipment component designed for the diesel engines of this model. This used turbocharger ensures factory fit, maintaining operating parameters consistent with the manufacturer's specifications and enabling efficient restoration of the engine's performance.

Specifications and technical data

• SKU: A6420900780
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420900780
• Substitutable numbers: A6420900780, A 642 090 07 80
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Turbos & Parts

Technical characteristics of the turbocharger

The turbocharger for the Mercedes ML320 CDI is a turbocharger designed for compression-ignition engines. Its design is adapted to the loads typical of diesel engines, ensuring stable boost pressure, correct throttle response, and adequate cooling and lubrication under on-road conditions.

Its front-mounted location facilitates service access while also allowing for optimal routing of the intake and exhaust systems. This ensures proper exhaust and charge air flow characteristics, which is crucial for engine durability and smooth operation.

Purpose and compatibility

This turbocharger was designed for use in the Mercedes-Benz ML320 CDI diesel drivetrain. Its genuine Mercedes-Benz OE design means that the geometry, mounting points, and connections are factory-spec, reducing the risk of installation issues.

The component is assigned an OEM part number and corresponding interchangeable numbers, allowing precise compatibility verification by vehicle part number or VIN. This allows a mechanic or technical advisor to quickly confirm compatibility with a specific engine configuration and model year.

Condition, origin and advantages of using a used part

The turbocharger is offered as a used part, which significantly reduces repair costs compared to a new component while maintaining the original manufacturer's specifications. For many users, this represents a reasonable compromise between price and quality, especially for vehicles that are used intensively or have higher mileage.

Using an original used turbocharger in place of a worn or damaged component allows you to:

• restore the correct acceleration dynamics of the diesel engine,
• stabilize the unit's operation in the full speed range,
• reduce the risk of controller errors related to incorrect boost pressure,
• maintain factory installation parameters without the need for modifications.

Professional selection and service aspects

To fully utilize the turbocharger's potential in the ML320 CDI, correct matching of the OEM and reference numbers is crucial. In workshop practice, this means verifying data in manufacturer catalogs and service systems, which minimizes the risk of installing the wrong variant. It's also worth paying attention to the condition of the lubrication and intake systems, as these have the greatest impact on the turbine's service life.

When replacing, it is recommended to:

• checking the cleanliness of oil lines and their patency,
• checking the tightness of the intake pipes and intercooler,
• verification of the correct operation of the supercharging control equipment.

Other turbochargers for Mercedes

If you are looking for other turbochargers for Mercedes, use the dedicated category where you will find a wide selection of models adapted to different drive units: turbochargers for Mercedes .

More about selecting original used parts

Selecting used drivetrain components – including turbochargers – requires a conscious approach to part numbers, service history, and assembly procedures. In the context of premium brands, an article describing practices used by another manufacturer in the higher segment can be an interesting addition to this knowledge. See how this plays out using the example of Bavarian designs: BMW – Sporty Performance and Precision and the Role of Original Equipment Parts .

If you want to learn more about the secondary circulation of components and dispel any doubts about their durability and safety, the guide: used car parts – myths and facts worth knowing before buying may also be helpful.