Mercedes R171 SLK 350 Bare Engine 272.969 272969 305HP 79k 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 R171 SLK 350 Bare Engine 272.969 272969 305HP 79k miles, WARRANTY is a V6 petrol powertrain designed for the Mercedes SLK R171 generation sports roadster. It is offered as a bare engine block, providing a solid foundation for professional repairs or a complete powertrain swap. This solution allows for cost-effective engine rebuilding while maintaining the correct factory specifications.

Specifications and technical data

• SKU: A2720104844
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720104844
• Substitutable numbers: A2720104844, A 272 010 48 44
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Engine code: 272969
• Mileage: 79 000

Technical characteristics of the unit

The presented engine block belongs to the Engines category and represents a modern six-cylinder petrol construction, designed for dynamic driving and high operational refinement. The cylinder layout ensures smooth power delivery, and the well-matched factory parameters allow for efficient load handling under typical operating conditions for a premium sports car.

The engine is prepared as a base for further assembly with accessories, which facilitates the adaptation of existing components from the donor vehicle – especially in the case of post-accident repairs or major overhauls. This form of delivery allows for maintaining control over the accessory configuration and matching it to the specific equipment version.

Application and vehicle compatibility

The bare engine block is intended for installation in the Mercedes SLK R171 350 model, where a combination of sports performance and daily driving comfort is essential. The V6 petrol unit performs well in both city driving and at higher highway speeds, offering sufficient power reserves for overtaking and dynamic acceleration.

To correctly match the engine to a specific vehicle, it is recommended to verify the compatibility of the engine code and factory parameters with the vehicle's documentation. In workshop practice, the VIN number and manufacturer's catalog data are often used for this purpose, which minimizes the risk of incorrect fitment and facilitates subsequent engine control unit configuration.

Benefits of choosing a used engine block

Choosing a used V6 engine block for the Mercedes SLK 350 is a cost-effective solution compared to a full rebuild of a damaged unit from scratch. It allows for:

• maintaining the original engine performance characteristics intended by the manufacturer,
• reducing vehicle downtime in the workshop,
• flexible use of existing accessories and electronics,
• more predictable repair costs compared to purchasing a new unit.

An additional advantage is the ability to assess the condition of the block based on documented mileage and workshop inspection, which facilitates an informed purchasing decision. A used engine of this type represents a reasonable compromise between price and functionality, especially for vehicles used on a daily basis.

Mileage and operational aspects

The stated mileage of the unit allows for an initial assessment of the wear level of internal components and the planning of any necessary service activities before installation. In workshop practice, it is often recommended to perform basic preparatory work, such as checking seals, verifying tightness, and assessing the condition of visible elements, which increases the safety of further operation.

The V6 petrol engine in a bare block configuration is frequently chosen by workshops specializing in the Mercedes brand, as it enables the preservation of the original powertrain characteristics without the need for structural vehicle modifications. Consistency with the factory architecture of the powertrain translates into stable operation and correct cooperation with the existing transmission and electronics.

Technical support and selecting a used engine

When choosing a used engine block, it is worth relying on reliable technical information and selection procedures based on identification numbers. A detailed discussion of this topic, along with examples and cost analysis, can be found in the article: Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical source of knowledge for those planning professional repairs or powertrain upgrades.

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 blocks, cylinder heads, or complete power units, check the available parts in the Mercedes Engines category.