Mercedes C140 W140 Rear Axle Differential Diff 2,82 Ratio A1403507914 WARRANTY

Listing details

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

Mercedes C140 W140 Rear Axle Differential Diff 2,82 Ratio is an original drivetrain component for the rear axle, designed specifically for Mercedes C140 and W140 series models. The precisely selected 2,82 gear ratio promotes smooth, economical driving while maintaining proper dynamics and handling stability.

Specifications and technical data

• SKU: A1403507914
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1403507914
• Substitutable numbers: A1403507914, A 140 350 79 14, A1403502614, A 140 350 26 14, A1403506314, A 140 350 63 14
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the differential

The presented rear differential belongs to the Differentials category and is responsible for distributing torque to the rear axle wheels, ensuring smooth cornering and stable power transmission. Its location on the vehicle at the rear axle allows for direct cooperation with the drive axle and half-shafts, which is crucial for the handling characteristics of high-end cars such as the Mercedes C140 and W140.

Choosing a differential with a 2,82 ratio is particularly beneficial for drivers who value a calmer driving style, lower engine RPM at highway speeds, and higher acoustic comfort inside the cabin. This type of configuration also helps reduce fuel consumption while maintaining adequate drivetrain flexibility.

Benefits of using an original rear differential

Using an original rear differential in a Mercedes C140/W140 allows you to maintain the factory characteristics of the drivetrain. This means:

• proper fitment to the rear axle geometry and suspension,
• consistency with factory settings of electronics and assistance systems,
• stable vehicle behavior at higher speeds,
• predictable drivetrain operation during acceleration and engine braking.

Thanks to the preservation of the original rear axle design, installation is straightforward, without the need for modifications to accompanying components. This solution is particularly valued when servicing classic cars and youngtimers, where compliance with factory specifications is essential.

Technical and installation characteristics

The differential has been designed as a rear drive axle component, taking into account the loads typical for heavier, comfortable limousines. The construction is intended for use with the standard suspension and drivetrain system used in Mercedes C140 and W140 models. The rear axle placement facilitates service access, and standard mounting points allow for installation in place of the factory unit.

In practice, this means that with the proper service procedure, the differential can be replaced without interfering with the body structure, which limits vehicle downtime and reduces the risk of additional costs. This is particularly important for both daily-driven cars and collector's items.

Condition and application in Mercedes vehicles

The offered item comes from disassembly and is classified as a used rear differential, which allows for a significant reduction in repair costs compared to purchasing a new unit, while maintaining the manufacturer's original specifications. This is a sensible solution for Mercedes C140/W140 owners who want to restore the efficiency of the drivetrain without compromising on factory build quality.

Thanks to the preservation of the original rear axle design, the differential will perform well both in daily use and in cars maintained in a condition close to factory, where compliance with the original engineering design is important.

Gear ratio selection and additional technical materials

When replacing a differential in a Mercedes C140 or W140, it is crucial to match the gear ratio to the existing drivetrain configuration and the driver's style. To better understand the impact of drive axle ratios on dynamics, fuel consumption, and driving comfort, it is worth checking out our guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. The article discusses various configurations in an accessible, technical way and helps you make an informed choice when selecting the right differential.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other components from the same group, such as rear axles, differentials with different ratios, or complete drivetrain assemblies, check out the available parts in the Mercedes Differentials category.