Mercedes GL500 X164 ML500 W164 Rear Differential 3.70 Ratio A1643500914 WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order. Mercedes GL500 X164 ML500 W164 Rear Differential 3.70 Ratio is an original, used rear differential designed for models with an automatic transmission and a petrol engine. This component is responsible for the precise transfer of torque to the rear wheels, ensuring stable handling and predictable vehicle behavior. By maintaining the factory gear ratio specification, the rear differential helps maintain the proper dynamics and smooth operation of the drivetrain.

Specifications and technical data

• SKU: A1643500914
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643500914
• Substitutable numbers: A1643500914, A 164 350 09 14
• Location on the vehicle: Rear
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Differential & Housing Assembly
• Category: Differentials

Purpose and compatibility

The presented rear differential has been designed to work in the drivetrain of Mercedes GL500 X164 and Mercedes ML500 W164 vehicles, where power is transmitted to the rear axle via an automatic transmission. The differential construction is adapted for petrol units, allowing for the proper handling of loads characteristic of these engine versions. The original differential from this series ensures consistency with the factory traction control and electronic stability program, which is particularly important in heavier GL and ML class SUVs. Using the correct gear ratio translates into predictable acceleration, appropriate engine RPM at highway speeds, and harmonious cooperation with the vehicle's electronics.

Construction and operating characteristics

The rear differential in this Mercedes model is based on a classic bevel gear design, adapted for operation in a rear-wheel-drive system. The differential assembly has been designed to:

• evenly distribute torque between the rear wheels,
• compensate for wheel speed differences during cornering,
• maintain the stable gear ratio intended for petrol versions with an automatic transmission. A differential configured in this way promotes smooth gear shifting, reduces jerking when starting, and supports a comfortable yet dynamic driving experience. For the user, this means more predictable vehicle behavior both in city traffic and when driving under heavier loads.

Application in the drivetrain

In GL500 and ML500 vehicles, the rear differential is a key component of the entire drivetrain system. In combination with the automatic transmission, it is responsible for:

• efficient transfer of petrol engine power to the rear axle,
• maintaining the appropriate acceleration characteristics,
• vehicle stability at higher speeds,
• proper cooperation with safety and traction control systems. A well-chosen and functional differential reduces excessive tire wear, decreases the load on other drivetrain components, and helps maintain acoustic comfort inside the cabin. Replacing a worn rear differential with an original part from the same series is particularly important if noises, play, or uneven power delivery occur.

Benefits of using an original differential

Choosing an original rear differential for a Mercedes GL500 or ML500 allows you to maintain the factory drivetrain performance parameters. This is a solution that:

• maintains compatibility with the software controlling the automatic transmission,
• ensures predictable vehicle behavior in various road conditions,
• reduces the risk of incorrect gear ratio selection and associated operational problems. For workshops and users, this means easier diagnostics, simpler installation, and a lower risk of needing further intervention in the drivetrain. A used, original differential is often a reasonable compromise between costs and maintaining proper driving parameters.

Drivetrain expansion and related 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 other axles, differentials, or transmission components, check the available parts in the Mercedes Differentials category. When planning repairs using original used components, it is also worth learning practical tips on optimizing service costs and selecting dismantled parts – the article Reliability and dynamics in Seat models – how to reduce repair costs by choosing factory-dismantled parts? may be helpful, as it discusses general principles for safely using original used subassemblies.