Mercedes W164 W203 W211 OM642 Diesel Turbocharger Turbo Charger A6420901480

Mercedes W164 W203 W211 OM642 Diesel Turbocharger A6420901480 is an original turbocharger from the Turbochargers & Parts category, designed for the OM642 diesel engines in the Mercedes W164, W203, and W211 models. This used OEM component is a solution for drivers who want to restore proper engine boost while maintaining the factory operating characteristics of the engine.

Specifications and technical data

• SKU: A6420905980-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420905980
• Substitutable numbers: A6420905980, A 642 090 59 80, BG
• Location on the vehicle: Front
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and application in the OM642 engine

The turbocharger presented here is a component of the turbocharging system in the OM642 diesel engine, used in the popular Mercedes W164, W203, and W211 models. It compresses intake air, resulting in higher engine efficiency, improved throttle response, and stable performance across the entire rev range. Mounted at the front of the vehicle, it works with the intake and exhaust systems, as well as the engine management system, ensuring adequate boost pressure under typical diesel operating conditions.

Construction, assembly and integration with the drive system

The turbocharger was designed as a factory component for diesel engines, ensuring full compatibility with the factory manifolds, oil lines, and control system. Its front-mounted design simplifies service access and reduces replacement time compared to solutions that require extensive intervention in the engine compartment.

As an OEM component, the turbocharger works with the original engine control unit software, without requiring modifications to injection maps or boost pressure. This allows for maintaining factory operating parameters, diesel refinement, and compliance with the manufacturer's engine protection strategies.

Benefits of using an original used turbocharger

Choosing a used OEM turbocharger for your Mercedes-Benz OM642 engine is a compromise between cost and factory quality. Compared to low-end aftermarket parts, the original part provides:

• consistency with the factory design – matching the intake, exhaust and charge air cooling systems,
• proper cooperation with the engine electronics – no need to adapt non-standard operating parameters,
• stable performance of the diesel engine – maintaining the torque characteristics intended for the OM642,
• possibility of economical repair – especially in the case of vehicles used intensively, where a reasonable service cost is important.

Used condition means that the component has been previously used, which is worth considering when planning any possible regeneration or additional verification before installation, especially in cars used in demanding conditions.

Selecting a turbocharger for a specific Mercedes model

To select the correct turbocharger for your Mercedes, pay attention to compatibility with the OM642 engine, body generation (W164, W203, W211), and drivetrain configuration. Verifying the OEM part number and interchangeable part numbers in the product's technical specifications is crucial – this helps avoid installation issues and ensures proper operation of the turbocharger system after replacement.

If you are planning a more extensive upgrade of the supercharging system or want to compare different variants of turbochargers for this brand, check out other turbochargers for Mercedes to choose the solution best suited to your driving style and operating conditions.

Used turbochargers, tuning and repairs

A used diesel turbocharger can be a good starting point for both standard repairs and further reconditioning or tuning modifications. In many cases, turbocharger specialists use original housings and rotor components as the basis for building reinforced kits. If you're interested in a broader context for the use of used turbochargers in German cars, it's worth checking out our article on Audi tuning and repairs using second-hand parts , which provides a good overview of how to wisely use aftermarket components.

Summary

The Mercedes W164 W203 W211 OM642 Diesel Turbocharger A6420901480 is a factory-installed turbocharger component for OM642 diesel engines, mounted in the front of the vehicle. A used OEM component allows you to restore the turbocharger's efficiency, maintain the engine's factory operating parameters, and simultaneously optimize the repair cost compared to a new part. Drivers who also want to modify other brands may find inspiration in this blog post about upgrading MINI models using used parts , demonstrating the potential of carefully selected aftermarket components.