Mercedes W204 C 350 CDI Bare Engine 642834 642.834 265HP 99k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Mercedes W204 C 350 CDI Bare Engine 642834 642.834 265HP 99k miles, WARRANTY is a proposal for demanding users looking for a proven powertrain for their Mercedes C-Class. We offer a bare engine block, which serves as a solid foundation for professional repair or a comprehensive rebuild of the drivetrain. This solution allows for precise matching of accessories and control over the entire assembly process.

Specifications and technical data

• SKU: A6420100798
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420100798
• Substitutable numbers: A6420100798, A 642 010 07 98
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: 642834
• Mileage: 99 000

Technical characteristics of the unit

The presented block belongs to the Engines category and is intended for Mercedes W204 C 350 CDI vehicles. The diesel unit provides high torque, which translates into dynamic acceleration and stable operation across the full load range. The use of six cylinders promotes smooth operation and good flexibility in daily use.

The engine, marked with a dedicated design code, is a popular choice both for workshops specializing in the Mercedes brand and for users planning a conscious powertrain upgrade. The bare block allows for the use of existing accessories or the installation of new components according to individual service requirements.

Bare engine block – flexibility in choosing accessories

The configuration as a bare engine block means you receive a key element of the powertrain, prepared for further assembly with accessories according to your specifications. This solution is particularly beneficial when:

• you want to transfer proven accessories from your current engine,
• you are planning to install new components according to your workshop's standards,
• you need a base for professional regeneration or a tuning project based on the factory Mercedes design.

Thanks to this, you have full control over the quality of the accompanying elements, and the block itself provides a stable foundation for further work.

Application in Mercedes W204 C 350 CDI

The engine was designed for the Mercedes C-Class 350 CDI model, which makes it easy to match with factory mounting points and ensures compatibility with the vehicle's original systems. The six-cylinder diesel unit fits well with the character of this model, combining driving comfort with adequate power reserves. It is an attractive option both when replacing a damaged engine and during a major drivetrain overhaul.

The offered block comes from the secondary market, which allows for cost optimization of the repair while maintaining a design consistent with Mercedes' factory specifications. This is particularly important for users who want to maintain the original character of the car, avoiding random replacements of uncertain origin.

Benefits of choosing this unit

By choosing this engine, you gain:

• a structurally consistent unit designed for the specific Mercedes W204 C 350 CDI model,
• the possibility of individual selection of accessories and auxiliary elements,
• a cost-effective solution compared to complete new engines,
• a base for further regeneration or modernization according to workshop requirements.

This is a practical choice for services specializing in the Mercedes brand and for conscious users who want to combine functionality with a reasonable repair budget.

Mercedes engines – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other elements from the same group, such as blocks, cylinder heads, or additional engine blocks, check out the available parts in the Mercedes Engines category.

Knowledge about powertrains – support during purchase

When choosing a used engine, it is worth knowing typical design problems and the differences between individual units to better assess the profitability of the repair. For comparison with other brands and designs, you can refer to our guide material regarding faulty units in a popular model from a competing brand – you will find it in the article Faulty BMW E90 engines: check what can ruin your budget!. Such knowledge helps you approach the purchase of a used engine block consciously and properly plan further service work.