Mercedes W251 Front Axle Differential Diff 2,92 Ratio A1643302502 WARRANTY

Listing details

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

Mercedes W251 Front Axle Differential Diff 2,92 Ratio is a factory drivetrain component from the Differentials category, designed for front axle installation in Mercedes vehicles. This solution is for users who expect precise torque transmission, stable handling, and compliance with factory gear ratio specifications.

Specifications and technical data

• SKU: A1643302502
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643302502
• Substitutable numbers: A1643302502, A 164 330 25 02
• Location on the vehicle: Front
• Category: Differentials

Purpose and function in the drivetrain

The front differential in the Mercedes W251 is responsible for torque distribution between the front axle wheels, ensuring smooth drivetrain operation under various road conditions. The properly selected 2.92 gear ratio allows for maintaining the correct acceleration characteristics, engine speed, and acoustic comfort while driving.

The component is mounted in the front area of the vehicle, working in conjunction with the half-shafts and the transmission, which is crucial for driving stability, traction, and even tire wear. Using an original differential from this series minimizes the risk of improper fitment and incompatibility with factory drivetrain parameters.

Benefits of using an original differential

Choosing a differential dedicated to the Mercedes W251 allows for maintaining consistency with the factory suspension and drivetrain design. The most important advantages include:

• Drivetrain compatibility – matching the front axle geometry and factory gear ratio.
• Stable power transmission – reduction of vibrations and unwanted play in the system.
• Predictable vehicle behavior – maintaining handling characteristics consistent with the manufacturer's design.
• Ability to use existing mounting architecture – without the need for structural modifications.

The differential from this group is particularly recommended when replacing a damaged drive axle, especially when the goal is to maintain stock driving parameters and ensure proper cooperation with the vehicle's electronics.

Product characteristics and condition

The offered component comes from a used vehicle, which in practice means the possibility of an economical drivetrain repair while maintaining the original design. These types of differentials are frequently chosen by workshops specializing in the Mercedes brand, as they allow for quick restoration of drivetrain efficiency without the need for costly reconstruction.

The front axle with a 2.92 ratio is suitable for users who expect balanced driving characteristics – both in city traffic and on the highway. The use of the correct gear ratio affects transmission load, fuel consumption, and the overall refinement of the entire drivetrain.

Gear ratio selection and technical support

When replacing a differential, it is crucial to match the gear ratio to the specific drivetrain version and transmission. To better understand the relationships between axle ratio, engine characteristics, and driving style, it is worth consulting our specialist guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. The article explains the differences in gear ratios, discusses compatibility issues, and provides practical configuration examples.

Drivetrain expansion in Mercedes

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 front drive axles, complete differentials, or axle housings, check out the available parts in the Mercedes Differentials category.

Summary

Mercedes W251 Front Axle Differential Diff 2,92 Ratio is a solution for drivers and workshops that want to restore proper drivetrain operation while maintaining the vehicle's factory characteristics. The correct gear ratio, front axle mounting, and inclusion in the Differentials group make this a practical choice for repairs and upgrades of the drivetrain in Mercedes vehicles.