Mercedes W163 4x4 Front Axle Differential Diff I=3,70 A1633300105 WARRANTY

Listing details

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

Mercedes W163 4x4 Front Axle Differential Diff I=3,70 is a factory-original drivetrain component designed for the front axle of vehicles in this series. Engineered to work with 4x4 drive, automatic transmissions, and gasoline engines, it ensures stable torque distribution and predictable vehicle behavior in various road conditions. This is the ideal solution for users who expect consistent drivetrain performance, proper traction, and compliance with factory specifications.

Specifications and technical data

• SKU: A1633300105
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1633300105
• Substitutable numbers: A1633300105, A 163 330 01 05
• Location on the vehicle: Front
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Differential & Housing Assembly
• Category: Differentials

Technical characteristics and intended use

The front differential in a 4x4 system is responsible for precise torque distribution to the front wheels, which is crucial for driving stability, especially in vehicles with increased weight and a higher center of gravity. The applied gear ratio of I=3.70 is selected to match the specific drivetrain configuration, ensuring proper engine RPM, smooth acceleration, and correct synchronization with the rear axle.

This component is structurally adapted for front-axle mounting in a four-wheel-drive vehicle powered by a gasoline engine and equipped with an automatic transmission. This maintains kinematic compatibility of the entire drivetrain, which reduces the risk of improper tire wear, vibrations, or transmission overload.

Compatibility with 4x4 drive, gasoline engines, and automatic transmissions

The differential has been configured to work with a gasoline unit, meaning it is matched to the torque characteristics typical of such engines. Combined with an automatic transmission, it creates a cohesive system in which:

• the differential ratio supports smooth gear shifts,
• loads are distributed evenly across transmission components,
• predictable dynamics are maintained during starting and acceleration.

In 4x4 vehicles, a correctly selected front differential is essential for proper interaction with the central transfer case and the rear axle. An incorrect gear ratio can lead to stress within the system, which is why using a dedicated component with a specific I=3.70 ratio is crucial for durability and safety.

Why choose an original salvaged differential

An original differential from a vehicle of the same model family is a solution that allows you to maintain factory drivetrain performance parameters. Compared to aftermarket replacements of uncertain specifications, such a component offers:

• factory geometry and fitment for mounts and half-shafts,
• compliance with the factory drivetrain gear ratio,
• consistent operation with the automatic transmission control electronics and traction systems.

A used differential also allows for optimized repair costs while maintaining performance levels close to factory assembly. This is particularly important for vehicles operated in demanding conditions, where both durability and service economy are key.

Gear ratio selection and technical support

When replacing a differential in a 4x4 system, it is extremely important to match the gear ratio to the other components of the system. To better understand the relationship between axle ratios, engine characteristics, and transmissions, it is worth consulting our specialist guide: Salvaged drive axles and differentials – how to choose gear ratios for your driving style. The article explains in an accessible, technical way how to consciously select drivetrain components for specific applications.

Expanding the Mercedes drivetrain

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 differentials, drive axles, or related transmissions, check out the available parts in the Mercedes Differentials category.

For drivers who want to further optimize service costs while maintaining OEM quality, our guide on an economical approach to repairs may also be helpful: Rising repair costs and the boom in used parts – how to save on car maintenance?. There, you will find practical tips on how to safely use salvaged drivetrain components and other sub-assemblies.