Mercedes ML W166 Transfer Case Box Transmission A2512802000 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Mercedes ML W166 Transfer Case Box Transmission is a specialized drivetrain component designed to work with the automatic transmission in Mercedes vehicles. It is responsible for the proper distribution of torque, which translates into stable handling, predictable traction, and safe vehicle operation in various road conditions.

Specifications and technical data

• SKU: A2512802000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2512802000
• Substitutable numbers: A2512802000, A 251 280 20 00, A2512802800, A 251 280 28 00
• Gearbox type: Automatic
• Category: Transfer Cases

Purpose and function in the drivetrain

The transfer case in the ML W166 model works in direct conjunction with the automatic transmission, responsible for precise power transmission to the vehicle's axles. A correctly selected and functional component of this group is crucial for:

• smooth engagement of the drive in both road and off-road modes,
• reducing unwanted vibrations and jerks during gear changes,
• maintaining driving stability under varying drivetrain loads.

Thanks to its adaptation to the specific drivetrain configuration of the ML W166, the transfer case allows for maintaining the factory performance characteristics of the 4x4 system and proper cooperation with the automatic transmission control electronics.

Technical characteristics and compatibility

The presented component belongs to the Transfer Cases category and is structurally prepared to work with an automatic transmission. This means that its design, gear ratios, and mounting method are optimized for the specific operation of automatic transmissions used in the Mercedes ML W166.

The selection of the correct transfer case for a specific vehicle version should always take into account:

• compatibility with the installed automatic transmission,
• type and configuration of the drivetrain (e.g., 4MATIC system),
• electronic control parameters for the given equipment version.

Proper compatibility translates into stable operation of the entire drivetrain, absence of errors in diagnostic systems, and maintenance of the traction characteristics intended by the manufacturer.

Condition, origin, and advantages of using a pre-owned component

The offered transfer case is a part from the original pre-owned components group, which in practice means a favorable compromise between the purchase cost and maintaining the factory design and fitment. For premium class vehicles such as the Mercedes ML W166, choosing a verified pre-owned component allows for significant cost savings while maintaining the correct operating parameters of the drivetrain.

When deciding to install a pre-owned transfer case, it is worth paying attention to:

• consistency with the installed automatic transmission,
• absence of non-factory modifications to the housing and mounting points,
• possibility of proper integration with existing equipment and vehicle electronics.

For drivers considering various drivetrain repair scenarios, an article describing the cost-effectiveness of purchasing pre-owned transmissions may be helpful – more information can be found in the material Pre-owned transmission – when is it worth it and what you need to remember.

Why it is worth choosing an original component for a Mercedes

In the case of models such as the ML W166, using an original transfer case ensures factory fitment to the body structure and drivetrain. This reduces the risk of installation problems, leaks, or improper cooperation with safety and traction control systems.

If you are interested in a broader context of using original, pre-owned components in vehicles of this brand, it is worth reading the guide on premium dismantled parts: pre-owned parts for Mercedes – original components from dismantling. This will allow you to better plan your service strategy and choose a solution appropriate to the vehicle's value.

Expansion and service of the drivetrain distribution system in a Mercedes

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 housings, intermediate gears, or additional torque distribution modules, check the available parts in the Mercedes Transfer Cases category.

Such an approach allows for consistently renewing key components responsible for power distribution, which in the long run translates into stable operation, lower loads on other drivetrain elements, and more predictable vehicle behavior in demanding road conditions.