Mercedes W203 Rear Differential Diff 2033503464 1723501014 2,87 WARRANTY

Listing details

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

Mercedes W203 Rear Differential Diff 2,87 is an original rear drive axle from the Differentials group, designed for installation on the rear axle of Mercedes vehicles. This component ensures proper torque transfer to the wheels, stable operation of the drivetrain, and predictable vehicle behavior during acceleration and load changes.

Specifications and technical data

• SKU: A2033509162
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2033509162
• Substitutable numbers: A2033509162, A 203 350 91 62, A2033503464, A 203 350 34 64, A1723501014, A 172 350 10 14
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the differential

The offered rear differential is a key component of the drivetrain in the Mercedes W203 class, responsible for distributing power to the rear wheels and compensating for the difference in rotational speed between them when cornering. Thanks to the properly selected axle ratio, it is possible to achieve balanced driving characteristics – from smooth starting and stable acceleration to predictable behavior at higher speeds.

Its placement on the vehicle in the rear axle area allows for direct cooperation with the driveshaft and half-shafts, which translates into consistent operation of the entire drivetrain and proper compatibility with the vehicle's factory electronics.

Benefits of using an original Mercedes differential

Using an original differential from a dismantled vehicle in a Mercedes W203 allows you to maintain factory drivetrain performance parameters and ensure a perfect fit for the specific vehicle configuration. In practice, this means:

• maintaining the manufacturer-intended acceleration characteristics and engine RPM at a given driving speed,
• proper cooperation with the stock transmission and assistance systems,
• reduced risk of improper drivetrain component loading,
• easier diagnostics and maintenance in the future.

For users looking for an economical solution that is also technically consistent with the car's design, such a differential represents a reasonable compromise between cost and functionality. Original Mercedes origin also promotes proper mechanical fitment and limits the need for installation modifications.

Technical characteristics and installation

The rear axle has been designed to work in a rear-wheel-drive system, with a factory-specified ratio that affects driving dynamics and engine RPM at constant speeds. The correct selection of the ratio is important for both driving comfort and the durability of drivetrain components.

Its placement in the rear part of the vehicle body makes it easier for technicians to identify mounting points and connections, which speeds up the replacement process. The differential construction is adapted to work with factory suspension and drivetrain elements of the Mercedes W203, which allows for maintaining the original geometry and proper operation of the chassis.

Practical application and gear ratio selection

Choosing the right rear axle has a direct impact on the vehicle's character – city driving, highway driving, and heavy-load usage all have different requirements. A properly selected differential helps reduce excessive fuel consumption, improve flexibility when overtaking, and ensure stable vehicle behavior during long-term operation.

To better understand how the axle ratio affects driving style and which configurations are optimal for different applications, it is worth reading our guide: Dismantled drive axles and differentials – how to choose ratios for your driving style. The article discusses the relationships between gear ratio, dynamics, and component durability in an accessible way.

Expanding the drivetrain in a Mercedes

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 axles, differentials with different ratios, or compatible rear-drive components, check out the available parts in the Mercedes Differentials category.