Mercedes W220 S350 Bare Engine 112972 112.972 245HP with 89k 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 W220 S350 Bare Engine 112972 112.972 245HP with 89k miles, WARRANTY is a used, complete engine block with cylinder heads, excluding accessories, designed for professional powertrain replacement in the S-Class model. This is a solution for workshops and users looking for a factory-matched engine block for a specific Mercedes version, maintaining structural compatibility and operational parameters. The bare engine allows for the efficient transfer of accessories from the previous unit, reducing repair costs and time.

Specifications and technical data

• SKU: A1120101146
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120101146
• Substitutable numbers: A1120101146, A 112 010 11 46
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: 112972
• Mileage: 89 000

Technical characteristics of the engine block

The offered engine block belongs to the Engines category and is intended for installation in the Mercedes S-Class W220 generation, S350 version. The unit runs on diesel fuel, which ensures high efficiency over long mileages and good torque characteristics in the low and medium RPM ranges. The six-cylinder configuration ensures smooth, refined operation and sufficient power reserve for comfortable driving in a luxury-class vehicle.

The engine, marked with a dedicated construction code, is a bare block – without accessories, but with the key mechanical part upon which the entire powertrain is based. This form allows for the transfer of existing auxiliary components (turbo, injectors, manifolds, belt-driven accessories) from the previous engine while maintaining full installation compatibility.

Application in the Mercedes W220 S350

The presented engine block was designed for use in the luxury Mercedes W220 S350 limousine, where power delivery smoothness, refinement, and durability are paramount. The use of a six-cylinder diesel unit fits the character of this model well – it combines reasonable fuel consumption with adequate dynamics, which is important for overtaking and highway driving.

The engine is particularly useful in situations where the existing unit has suffered serious mechanical damage (e.g., seizure, cracked block, crankshaft damage) and repair is no longer economically justified. Replacing it with a complete engine block allows for restoring the vehicle's performance while maintaining the original factory specifications.

Benefits of choosing a used engine block

A used engine block for the Mercedes W220 S350 is a solution that significantly reduces repair costs compared to a new unit while maintaining high functionality. Key advantages of this solution include:

• preservation of the original design and fitment to the body and auxiliary vehicle systems,
• the ability to use existing accessories, which limits additional expenses,
• consistency with the factory operating parameters of the powertrain,
• a reasonable cost-to-repair ratio for a premium-class car.

Additionally, the mileage of the unit is known, which makes it easier to assess the potential for further operation and plan preventive maintenance after installation. This is especially important for workshops that want to consciously advise the client on the optimal repair variant.

Condition, preparation, and selection by numbers

The engine is offered as a used item, meaning it has been in operation but is still suitable for further use after proper installation and basic service maintenance. The bare block is a good base for building a complete powertrain using verified accessories from the customer's vehicle.

The selection of such an engine should always be verified by the OEM number and engine code, and if necessary, also by the vehicle's VIN. This avoids mechanical and electronic compatibility issues and ensures a correct fit for the specific equipment version. In case of doubt, it is worth consulting a mechanic or technical advisor who will confirm the unit's compatibility with the specific car.

To better understand how to safely choose used powertrains and what the real cost differences are compared to new parts, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The article discusses, among other things, selection by OEM and VIN numbers as well as practical aspects of installation.

Expanding repairs in the powertrain area

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

This approach allows you to plan the full scope of work in one stage – from replacing the engine block, through potential accessory regeneration, to additional mounting elements. Thanks to this, the repair is consistent, and the risk of unforeseen service downtime is minimized.