Mercedes W203 Rear Differential Diff A2033504894 2033504894 2,65 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 is an original drivetrain component from the Differentials category, designed for installation on the vehicle's rear axle. It ensures stable torque transfer to the wheels, which translates into predictable handling and proper drivetrain operation during daily use. This is a solution for users looking for a proven, factory-spec component instead of replacements with uncertain parameters.

Specifications and technical data

• SKU: A2033509062
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2033509062
• Substitutable numbers: A2033509062, A 203 350 90 62, A2033504894, A 203 350 48 94
• Location on the vehicle: Rear
• Category: Differentials

Technical characteristics and 2.65 gear ratio

The rear axle with a 2.65 gear ratio is suitable for configurations where calm, economical driving and lower engine RPM at highway speeds are prioritized. Such a gear ratio promotes acoustic comfort and can positively influence fuel consumption during steady driving. At the same time, sufficient dynamics are maintained so that the car reacts predictably to load changes and transmission operation.

The differential mounted on the rear axle is responsible for differentiating the rotational speed of the wheels when cornering, which reduces slippage and improves driving stability. A properly selected rear axle minimizes unwanted vibrations, noise, and jerking, and also works with the vehicle's safety systems, such as ABS or traction control, in accordance with the manufacturer's factory specifications.

Purpose and vehicle placement

The presented differential is intended for installation in the rear part of the body, in place of the factory drive axle. Vehicle placement: rear means that the component works with the driveshaft and rear half-shafts, forming a key part of the drivetrain. By maintaining the original geometry and mounting points, it is possible to fit it to the factory subframe and suspension without the need for structural modifications.

In practice, installing such a differential involves replacing the existing axle, while following the proper procedure for bleeding and refilling the gear oil in accordance with the vehicle manufacturer's recommendations. For workshops specializing in the Mercedes brand, this is a standard service operation that allows for restoring proper drivetrain function after the wear or damage of the previous component.

Benefits of using an original differential

Using an original differential in a Mercedes W203 allows for maintaining consistency of driving parameters with the factory specification. The factory 2.65 gear ratio is selected based on the characteristics of the engines, transmissions, and vehicle weight, which reduces the risk of unwanted changes in the car's behavior after repair. Compared to randomly selected replacements, the original rear axle facilitates diagnostics and service, as all reference values remain consistent with the manufacturer's documentation.

A used component of this class is an attractive cost-effective solution, especially in the case of older models, where a full overhaul or the purchase of a new sub-assembly may be economically unjustified. With proper installation and regular gear oil changes, such a differential can continue to provide stable operation for a long period of use.

Gear ratio selection and vehicle compatibility

Before purchasing a rear axle with a 2.65 gear ratio, it is worth verifying compatibility with the specific engine version and transmission in your Mercedes W203. It is important to match the gear ratio to the driver's driving style – configurations with lower gear ratios favor calm, smooth driving, while other sets may be preferred for more dynamic use. In case of doubt, comparing data with service documentation or consulting a mechanic specializing in the drivetrain of this brand may be helpful.

To better understand how the axle ratio affects car behavior, it is worth referring to specialized technical materials. A practical discussion of the topic, along with examples of configurations and answers to frequently asked questions, can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which explains the relationships between gear ratio, dynamics, and driving comfort in an accessible way.

Mercedes Drivetrain Zone – Differentials

If you are planning a comprehensive repair or upgrade of the drivetrain zone in your Mercedes and need other elements from the same group, such as additional axles, differentials with a different gear ratio, or compatible components for the rear-wheel drive, check the available parts in the Mercedes Differentials category.