Mercedes R171 SLK 350 Complete Engine 272.963 272963 272HP 69k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

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

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mercedes R171 SLK 350 Complete Engine 272.963 272963 272HP 69k miles, WARRANTY is a complete powertrain unit from the V6 family, designed for demanding users who value smooth operation, high driving refinement, and solid performance. This six-cylinder petrol engine is suitable for both daily driving and dynamic performance, serving as a functional base for professional repair or engine replacement in your SLK.

Specifications and technical data

• SKU: A2720103144-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720103144
• Substitutable numbers: A2720103144, A 272 010 31 44
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Engine code: 272963
• Mileage: 69 000

Technical specifications of the unit

The presented engine belongs to the Engines category and is a 6-cylinder petrol construction, which translates into smooth power delivery and stable operation across the entire rev range. The engine code allows for precise identification of the unit in service documentation and manufacturer catalogs, facilitating the selection of accessories and compatible components.

The V6 configuration provides a good balance between performance and comfort, and the M272 family technology is well-known in the workshop environment, which promotes efficient service and the availability of technical expertise.

Application in the Mercedes R171 SLK 350

The complete engine is intended for installation in the Mercedes R171 SLK 350 model, providing a solution for vehicles requiring a powertrain replacement due to failure, overheating, or wear and tear. By maintaining the original design specifications, it is possible to restore the factory performance parameters of the drivetrain without the need for interference with the electrical installation or engine management system.

The unit will perform well both in daily-driven cars and in hobbyist vehicles, where consistency with the factory configuration and maintaining the dynamics characteristic of the SLK 350 are important.

Benefits of choosing a complete engine

Choosing a complete engine from this series is a solution that reduces vehicle downtime and minimizes the risk of component compatibility issues. For workshops and users, this means:

• easier planning of repair work thanks to a cohesive powertrain unit,
• maintaining operating characteristics consistent with Mercedes factory standards,
• the possibility of effective regeneration or service in the future due to the mechanics' familiarity with the design.

An additional advantage is the used nature of the product, which allows for lower repair costs compared to a new unit, while maintaining functionality suitable for continued vehicle operation.

Condition, mileage, and serviceability

The engine comes from a vehicle with a specific mileage, which allows for a better assessment of its operational potential and the planning of any preventive maintenance, such as replacing fluids, seals, or accessory components. The used condition of the unit is important information for the workshop – it enables informed planning of the scope of work before installation, in order to minimize the risk of unforeseen downtime in the future.

For professional services and informed users, this is a good base for further operation or potential regeneration, while maintaining a favorable cost-to-functionality ratio.

Selection and purchase safety

To correctly match the engine to a specific Mercedes vehicle, it is worth using the manufacturer's markings and vehicle data (e.g., VIN), which helps avoid problems with the compatibility of the ECU, accessories, or mounts. In case of doubt, it is recommended to consult with a mechanic or technical advisor who will verify the unit's compatibility with your car.

If you want to better prepare for the purchase and installation of a powertrain unit, a practical guide regarding the risks associated with choosing used engines, such as the failure rates of specific series or common defects, may be helpful – you can find them in the article Troublesome BMW E90 engines – what can ruin your budget, which shows which technical aspects to pay attention to when making similar purchasing decisions.

Additionally, if you want to organize the process of buying parts online and learn good practices for verifying sellers, photos, and descriptions, it is worth reading the guide Safe purchase of used car parts online – a step-by-step guide, which discusses step-by-step how to consciously choose used components, including powertrain units.

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 powertrain units, check out the available parts in the Mercedes Engines category.