Mercedes-Benz ML W163 270CDI 163HP Complete Engine OM 612.963 612963 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-Benz ML W163 270CDI 163HP Complete Engine OM 612.963 612963 WARRANTY is a proven solution for users expecting a robust diesel unit with stable operating characteristics. The offered engine block comes from the Engines category and is designed for installation in the ML W163 model with the 270 CDI unit, ensuring consistency with the factory powertrain configuration. This is an ideal choice for those who want to restore full drivetrain efficiency without the costly regeneration of an old engine.

Specifications and technical data

• SKU: A6120107800-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6120107800
• Substitutable numbers: A6120107800, A 612 010 78 00, A6120103500, A 612 010 35 00
• Fuel type: Diesel
• Number of cylinders: 5
• Category: Engines
• Mileage: 59 000

Technical characteristics of the OM 612.963 unit

The engine belongs to the family of Mercedes direct-injection diesel units, designed for heavy-duty operation in SUV-class vehicles. The five-cylinder layout ensures smooth torque delivery and good refinement within typical RPM ranges. The diesel construction promotes economical operation while maintaining adequate dynamics, which is essential in heavier vehicles such as the ML W163.

The offered engine is a complete unit, which facilitates the replacement process in the vehicle and limits the need for additional equipment from other sources. As a result, the mechanic can focus on proper installation and configuration without time-consuming transfers of numerous components from the previous engine.

Purpose and compatibility

The OM 612.963 engine was developed specifically for the Mercedes-Benz ML W163 270 CDI model with 163 HP, which translates into high compatibility with the factory electrical installation, accessories, and drivetrain. The unit is suitable for users who want to maintain the original vehicle specification without experimenting with other engine types.

In practice, this means the ability to use existing mounts, cooling system connections, intake and exhaust systems, as well as compatibility with the factory engine control unit. Such a configuration facilitates diagnostics, service, and subsequent maintenance of the vehicle in good technical condition.

Condition, mileage, and benefits of installation

The unit comes from a vehicle operated under controlled conditions, and its mileage is relatively low for a diesel engine of this generation. As a result, the user receives a powertrain with preserved durability, which is important when planning further vehicle operation. The used condition allows for combining a reasonable purchase cost with functionality sufficient for daily use.

Replacing a complete engine with a proven unit of this type is often more cost-effective than repairing a heavily worn or damaged motor. This helps reduce the risk of further failures, shorten vehicle downtime in the workshop, and restore full drivetrain efficiency while maintaining factory operating characteristics.

Professional application and service tips

The OM 612.963 engine performs well both in typical road applications and during occasional towing or light off-road driving, where stable diesel operation and adequate torque reserve are important. The unit is frequently chosen by workshops specializing in the Mercedes brand due to its predictable behavior and widespread knowledge of the construction within the service environment.

During installation, standard service procedures are recommended: changing oil, filters, coolant, and thoroughly checking the accessories transferred from the old engine. Such an approach minimizes the risk of subsequent leaks and allows for fully utilizing the potential of the offered powertrain.

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

For a comparison of the characteristics of different powertrains and a better understanding of how the choice of a specific engine affects operating costs, it is worth checking out the guide material on our blog: Troublesome BMW E90 engines: check what can ruin your budget!.