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 a precision-engineered rear differential from disassembly, designed for the drive axle in Mercedes W447 series vehicles. The established gear ratio configuration ensures predictable drivetrain behavior and stable operation under typical operating conditions. By maintaining factory specifications, this solution allows for an efficient, technically correct replacement of a worn differential.

Specifications and technical data

• SKU: 43552700069
• Mark: Unbranded
• Condition: Used
• OEM Part Number: 43552700069
• Substitutable numbers: 43552700069, 4 355 270 00 69, A4473501014, A 447 350 10 14
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The offered rear differential for Mercedes W447 belongs to the Differentials category and is responsible for distributing torque between the rear axle wheels. The fixed final drive ratio has been selected to balance acceleration dynamics with comfortable engine RPM during highway driving. Using a complete differential with the original ring and pinion gear set maintained allows for consistent drive characteristics in line with the manufacturer's factory settings.

Key technical features

The rear differential for Mercedes W447 is constructed as an integrated gear assembly mounted on the vehicle's rear axle. Its placement in the rear zone ensures direct cooperation with the half-shafts and the driveshaft, which minimizes mechanical losses and facilitates service. The fixed final drive ratio promotes repeatable driving parameters, and the properly selected gear tooth ratio influences:

• consistent acceleration across the full speed range,
• stable engine RPM when driving at a constant speed,
• predictable vehicle behavior under load.

Application in Mercedes W447

Mercedes W447 Rear Axle Differential Diff 52:15 Ratio=3,467 is intended for installation in vehicles of this series where a specific final drive ratio is required. Using a used, complete assembly allows for:

• restoring proper rear-wheel drive operation after failure or wear of the factory differential,
• maintaining gear ratio compliance with the factory drivetrain configuration,
• reducing the risk of incorrect component selection when replacing individual transmission elements.

For workshops and individual users, this means a simpler parts selection process and a lower risk of drivetrain performance issues after installation.

Condition, origin, and benefits of choosing a used differential

The presented differential comes from disassembly and is marked as a used component, which allows for combining a reasonable purchase cost with the preservation of original technical specifications. For this type of component, it is crucial that the complete gear assembly retains the factory-matched gear set, which reduces operating noise and ensures proper meshing. Choosing a used differential is particularly beneficial when:

• a quick replacement of the entire assembly without regeneration is necessary,
• gear ratio compatibility with the existing transmission configuration and vehicle electronics is important,
• maintaining original driving characteristics is a priority.

Gear ratio selection and vehicle compatibility

Before purchasing, it is recommended to verify the drive axle ratio and compatibility with the specific version of the Mercedes W447 to avoid differences in engine RPM and speedometer readings. Proper differential selection has a direct impact on drivetrain refinement, fuel consumption, and driving comfort. For users who want to better understand the relationship between gear ratios and vehicle characteristics, the following guide will be helpful: Drive axles and differentials from disassembly – how to choose ratios for your driving style.

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 drive axles, other differentials, or complete gear assemblies, check the available parts in the Differentials Unbranded category.