Mercedes W212 Drive Shaft Rear Axle Left Right N/O/S Output Shaft A2123501810

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W212 Drive Shaft Rear Axle Left Right N/O/S Output Shaft is a component from the Drive shafts group, designed for operation in the rear axle of a vehicle with a diesel engine. It enables efficient torque transfer to the wheels, ensuring stable handling and predictable vehicle behavior. Thanks to the possibility of installation on either the left or right side of the vehicle's rear, it provides a flexible service solution for high-end Mercedes models.

Specifications and technical data

• SKU: A2123501810
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123501810
• Substitutable numbers: A2123501810, A 212 350 18 10, KD
• Location on the vehicle: Rear, Right, Left
• Category: Driveshafts

Purpose and function in the drivetrain

The rear drive shaft in Mercedes diesel vehicles is responsible for the mechanical connection between the differential and the wheel hub, transferring drive under variable loads and suspension movement. This component is designed for installation on both the left and right sides of the rear axle, which facilitates part selection during drivetrain repairs.

A properly selected drive shaft reduces vibrations, improves drivetrain refinement, and contributes to the durability of other components – the differential, wheel bearings, and suspension elements. In Mercedes W212 class vehicles, this is of particular importance at higher speeds and under loads typical for premium segment cars.

Compatibility and fitment for Mercedes

The presented drive shaft has been designed for use in Mercedes models, maintaining factory standards for geometry and mounting points. This means:

• proper fitment with the differential and rear wheel hub,
• compliance with factory mounting points in the suspension,
• maintenance of the correct operating length for the left and right sides of the vehicle's rear.

As a result, this component from the Drive shafts group allows for drivetrain servicing without interfering with the vehicle's construction, which is essential for both safety and the durability of the entire powertrain.

Performance characteristics and benefits of use

As a part intended for the rear axle, the drive shaft operates in demanding conditions – it transfers high torque and reacts to load changes and suspension movement. A properly selected element ensures:

• stable power transmission in diesel-powered vehicles,
• reduction of unwanted play and knocking in the rear part of the drivetrain,
• more predictable vehicle behavior during acceleration and engine braking.

The product in used condition represents a cost-effective service solution, especially where it is crucial to maintain the original drivetrain design while optimizing repair budgets.

Professional use in service and drivetrain regeneration

The rear drive shaft for the Mercedes W212 is suitable for both professional workshops and users servicing their own vehicles. This component is particularly useful for:

• repairs following mechanical damage within the rear axle area,
• eliminating play and noise originating from the differential or rear wheels,
• comprehensive drivetrain maintenance in vehicles with higher mileage.

To better prepare for assessing the condition of the drivetrain and selecting the right components, it is worth checking out the guide on differentials and drive axles – practical tips can be found in the article Second-hand differential – what you should know about used differentials, sensors, and drivetrain systems.

Expanding Mercedes drivetrain service

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other elements from the same group, such as additional drive shafts, CV joint components, or other power transmission parts, check the available parts in the Mercedes Drive shafts category.

For larger service projects involving several sub-assemblies at once, the guide on sourcing used components in one place may also be helpful – more information can be found in the material Comprehensive supply: from the engine to the smallest clip – how to source used car parts in one place.