Mercedes W906 Rear Differential Diff 51:13 3,923 741417 A9063502314 WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

Mercedes W906 Rear Differential Diff 51:13 3,923 741417 is an original drivetrain component from the Differentials category, designed for installation on the vehicle's rear axle. It ensures precise torque transmission and stable operation of the rear axle, which translates into predictable handling and safe vehicle operation. This is a solution for users who expect a proven design and compliance with Mercedes factory standards.

Specifications and technical data

• SKU: A9063502314
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9063502314
• Substitutable numbers: A9063502314, A 906 350 23 14
• Location on the vehicle: Rear
• Category: Differentials

Technical characteristics of the rear differential

The presented rear axle is designed as an integral part of the drivetrain for Mercedes W906 series vehicles. The differential construction is optimized for durability and stable operation under loads typical for vans and commercial vehicles. The applied gear ratio provides a balanced compromise between acceleration dynamics and comfortable engine RPM while driving at a constant speed.

Its placement on the vehicle in the rear axle area allows for effective torque distribution between the wheels, which improves traction and reduces wheel slip under varying road conditions. Thanks to factory geometry and a properly selected set of gears, the differential works harmoniously with other drivetrain components.

Purpose and application in Mercedes vehicles

The differential has been developed for Mercedes vehicles where reliable power transmission to the rear axle is crucial. It is suitable for typical commercial applications, such as goods transport, specialized bodywork, or intensive fleet operation. The properly selected axle ratio promotes stable drivetrain operation both in city traffic and on long routes.

By maintaining factory mounting parameters, the differential allows for the preservation of the vehicle's original handling characteristics. This is particularly important where predictable vehicle behavior under load, even tire wear, and proper interaction with safety and stability control systems are essential.

Benefits of using an original differential

Using an original rear axle in a Mercedes vehicle brings a number of practical operational benefits:

• preservation of the factory drivetrain operating characteristics,
• proper interaction with the existing transmission and driveshaft,
• stable load transfer when driving with cargo,
• reduction of the risk of improper fitment of mounting components.

For fleet users and workshops, the ability to clearly identify parts using the manufacturer's markings is also important, which facilitates the selection of the correct component for a specific vehicle configuration. Choosing an original differential from this series allows you to maintain drivetrain consistency and avoid problems resulting from the use of random replacements.

Installation area and service aspects

The placement of the differential in the rear of the vehicle requires precise installation and the maintenance of proper suspension and drivetrain geometry. A correctly selected rear axle minimizes vibrations transmitted to the body and influences even load distribution during acceleration and engine braking. This translates into driving comfort and predictable vehicle behavior in various road conditions.

During installation, it is recommended to check the condition of cooperating elements, such as the driveshaft, half-shafts, and suspension mounts. This makes it possible to fully utilize the potential offered by this differential and reduce future service costs. A properly selected and installed rear axle provides a solid foundation for further vehicle operation in demanding conditions.

Gear ratio selection and technical knowledge

The proper selection of the axle ratio has a direct impact on driving characteristics, fuel consumption, and drivetrain comfort. For those who want to better understand the relationships between differential ratio, driving style, and vehicle application, we recommend our guide article Dismantled drive axles and differentials – how to choose ratios for your driving style. You will find practical tips on interpreting ratios, component compatibility, and examples of applications in various configurations.

If you are planning a comprehensive repair or modernization of the drivetrain area in your Mercedes and need other elements from the same group, such as axle housings, complete differentials, or components cooperating with the rear axle, check the available parts in the Mercedes Differentials category.