Mercedes W907 Rear Differential Diff 741423 51:13 3,923 A9073504001 WARRANTY

Listing details

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

Mercedes W907 Rear Differential Diff 741423 51:13 3,923 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 looking for a proven, factory-spec component instead of replacements with uncertain parameters.

Specifications and technical data

• SKU: A9073504001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9073504001
• Substitutable numbers: A9073504001, A 907 350 40 01
• Location on the vehicle: Rear
• Category: Differentials

Technical characteristics of the Mercedes W907 rear differential

The presented rear axle is designed as an integral part of the Mercedes W907 series drivetrain. The differential construction is optimized for durability and stable operation under a wide range of loads, which is particularly important in commercial and delivery vehicles. The applied final drive ratio allows for a balance between acceleration dynamics and comfortable engine RPM while driving at a constant speed.

The placement on the rear axle promotes even force distribution in the drivetrain, and the properly selected differential ratio supports driving stability in both loaded and unloaded vehicle conditions. This type of configuration is highly valued in fleet applications, where parameter repeatability and predictable vehicle behavior are essential.

Function and application in the drivetrain

The rear axle differential is responsible for distributing torque between the rear wheels and compensating for the difference in wheel rotational speeds when cornering. In practice, this means smoother handling, reduced tire wear, and a reduction in adverse stresses within the drivetrain. Combined with a properly selected final drive ratio, it allows for a stable driving characteristic tailored to the specifics of the Mercedes W907.

Replacing the differential with a functional unit from the same series is particularly important if noises from the rear axle, noticeable play, or uneven power transmission occur. Using an original component allows for maintaining the factory drivetrain operating parameters, which is crucial for the durability of the gearbox, driveshaft, and other transmission elements.

Benefits of using an original Mercedes differential

Choosing an original differential for the Mercedes W907 brings a number of practical technical benefits:

• maintaining factory gear ratio characteristics without the need to modify control units or the drivetrain,
• structural consistency with other rear axle components,
• proper fitment to the rear axle suspension geometry,
• reducing the risk of incorrect installation compared to unverified replacements.

As a result, the drivetrain operates under conditions intended by the manufacturer, which promotes longer component life and stable driving parameters. For fleet users and workshops specializing in the Mercedes brand, this is a solution that facilitates maintaining uniform service standards.

Practical installation and maintenance tips

When replacing the rear differential in a Mercedes W907, it is worth paying attention to several technical aspects that affect subsequent operation:

• checking the condition of the rear axle mounts and suspension elements in the installation area,
• selecting the appropriate gear oil in accordance with the vehicle manufacturer's recommendations,
• correct adjustment of play and tension in the drivetrain after installation,
• checking the tightness of connections and potential leaks after the first few kilometers of driving.

Such an approach allows for fully utilizing the potential of the installed differential and reducing the risk of further service interventions. For specialized workshops, this is also a way to maintain high-quality service and repeatable repair results.

Mercedes differentials – topic expansion and gear ratio selection

Selecting the right drive axle and differential for the driving style, vehicle weight, and typical operating conditions has a direct impact on dynamics, fuel consumption, and drivetrain comfort. To better understand the relationships between gear ratios, engine characteristics, and vehicle application, it is worth consulting expert material – this is discussed in detail in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, where you will find definitions, practical examples, and answers to frequently asked questions.

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 complete axles, final drives, or other rear differentials, check the available parts in the Mercedes Differentials category.