Mercedes W447 Rear Axle Differential Diff 52:15 Ratio=3,467 A4473501014 WARRANTY

Listing details

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

Mercedes W447 Rear Axle Differential Diff 52:15 Ratio=3,467 is an original drivetrain component from the Differentials category, designed for installation on the rear axle of Mercedes vehicles. The precisely selected 52:15 (3.467) gear ratio ensures stable torque transfer, which translates into predictable vehicle behavior and comfortable operation of the manual transmission. This is a solution for users who expect a proven, factory-standard design and wish to maintain the correct driving characteristics of their vehicle.

Specifications and technical data

• SKU: A4473501014
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4473501014
• Substitutable numbers: A4473501014, A 447 350 10 14
• Location on the vehicle: Rear
• Gearbox type: Manual
• Category: Differentials

Technical specifications and 52:15 (3.467) gear ratio

The presented rear differential has been designed for use with a manual transmission, which is crucial for acceleration dynamics and engine RPM at constant speeds. The 52:15 (3.467) gear ratio is a compromise between flexibility in lower gears and fuel economy, allowing the car to maintain good throttle response without excessive RPM at highway speeds.

Selecting the correct drive axle ratio affects:

• acceleration characteristics across the entire RPM range,
• fuel consumption at constant speeds,
• acoustic comfort inside the vehicle,
• traction stability when the rear axle is loaded.

Thanks to the factory gear configuration, the differential remains compatible with the vehicle's stock controller and gauge calibration, which is particularly important for the operation of Mercedes W447 commercial and passenger vehicles.

Purpose – rear axle and Mercedes drivetrain

The differential is designed for installation on the rear axle, where it is responsible for distributing torque to the wheels and compensating for rotational speed differences when cornering. In combination with a manual transmission, it creates a cohesive drivetrain that ensures predictable handling and proper traction in typical road conditions.

This component is particularly important in vehicles that regularly operate under load – e.g., in delivery applications or passenger transport – where the stability and consistency of the drivetrain have a direct impact on safety and operating costs.

Condition, origin, and benefits of using a pre-owned differential

The offered differential is a dismantled, used component, which allows for a significant reduction in repair costs compared to purchasing a new unit. At the same time, the factory design and gear geometry are preserved, meaning there is no need to interfere with the original drivetrain settings.

Using a pre-owned differential is particularly beneficial when:

• the existing drive axle has suffered mechanical damage or wear,
• it is necessary to quickly restore vehicle functionality at controlled costs,
• you want to maintain the stock gear ratio and driving characteristics without experimenting with other configurations.

Choosing an original dismantled differential helps avoid fitment issues typical of aftermarket replacements of uncertain origin.

Matching the gear ratio to driving style and vehicle configuration

Before installation, it is worth verifying the compatibility of the 52:15 (3.467) ratio with the factory specifications of your Mercedes W447 to maintain proper drivetrain operating parameters. This is important for both driving comfort and the durability of other components, such as the driveshaft or half-shafts.

If you want to better understand how the axle ratio affects vehicle behavior, matching it to a manual transmission, and the differences between individual configurations, check out the guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. The article practically discusses the relationships between gear ratios, dynamics, economy, and component durability.

Drivetrain expansion and related Mercedes components

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 drive axles, final drives, or other rear differentials, check out the available parts in the Mercedes Differentials category.

For users considering performance modifications using dismantled components, a valuable addition to your knowledge would also be the guide on the optimal use of used parts in tuning: Tuning with used parts – how to gain performance without spending a fortune. This will make it easier for you to plan consistent changes to the drivetrain while maintaining safety and reasonable costs.