Mercedes R172 OM651 Front Axle Driveshaft Right O/S Automatic A1723502302

The Right Front Driveshaft for Mercedes R172 with Diesel Engine and Automatic Transmission is a precision drivetrain component, specifically designed for the front passenger side axle. Thanks to its factory geometry and precise fit for the specific drivetrain configuration, it ensures stable torque transfer and predictable vehicle behavior during acceleration, engine braking, and cornering.

Specifications and technical data

• SKU: A1723502302
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1723502302
• Substitutable numbers: A1723502302, A 172 350 23 02
• Location on the vehicle: Front, Right
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Driveshafts

Purpose and Technical Fitment

The driveshaft presented is intended for installation on the right front axle in Mercedes R172 models equipped with a diesel engine and an automatic transmission. This configuration requires appropriately selected length, diameter, and joint characteristics to maintain the correct operation of the suspension, steering, and drivetrain throughout the full range of suspension travel and wheel articulation.

The component has been designed to work with a diesel engine, which generates high torque at low RPMs. This ensures the driveshaft is prepared for the typical loads of this engine type, translating to reliable drivetrain operation in everyday use and during dynamic driving.

Operation Characteristics with Automatic Transmission

In vehicles with an automatic transmission, the driveshaft operates under different conditions than in manual versions. Frequent gear changes, smooth starts, and torque transfer at low RPMs require a specifically designed construction of the joints and the shaft itself. This model has been configured precisely for such characteristics, contributing to:

• uniform torque transfer to the right front wheel,
• reduction of vibrations and unwanted play in the drivetrain,
• stable vehicle behavior during load and gear changes.

This provides the driver with consistent and predictable drivetrain responses, which is particularly important in Mercedes-class vehicles, known for their comfort and driving precision.

Benefits of Using an Original Driveshaft

Selecting the correct driveshaft for a specific model and drivetrain configuration is crucial for the durability of the entire system. Using a component dedicated to the Mercedes R172 with a diesel engine and automatic transmission allows for:

• maintaining factory joint operating angles and linearity of power transfer,
• minimizing the risk of accelerated wear on wheel bearings, joints, and suspension components,
• preserving correct interaction with safety systems such as ABS and traction control.

A used part from a dismantled vehicle offers a solution that combines technically correct fitment with a cost-effective repair, while maintaining characteristics close to the factory standard.

Practical Application and Installation Tips

This type of driveshaft is particularly recommended for symptoms such as knocking during turns, vibrations during acceleration, or noticeable play in the right front drivetrain. Replacing it with a correctly selected component restores proper system operation and limits further wear on cooperating parts.

During installation, it is advisable to pay attention to:

• correct seating in the wheel hub and gearbox,
• checking the condition of seals and joint boots,
• maintaining the correct sequence for tightening mounting elements.

This approach promotes trouble-free operation after replacement and reduces the risk of needing further intervention in the drivetrain.

Expanding Knowledge and Selecting Drivetrain Components

If you wish to better understand the relationships between the driveshaft, rear axle, and differential, and their impact on driving characteristics, it is worth consulting specialized materials. A practical discussion of gear ratios, component compatibility, and selecting parts for your driving style can be found in the article Used Rear Axles and Differentials – How to Choose Gear Ratios for Your Driving Style, which clearly explains key concepts related to the drivetrain.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and require other parts from the same group, such as half-shafts, joints, or complete driveshafts, check the available parts in the category Mercedes Driveshafts.