BMW G20 G30 G31 X3 G01 Transfer Case Box Transmission ATC13 9470187 WARRANTY

Listing details

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

BMW G20 G30 G31 X3 G01 Transfer Case Box Transmission ATC13 is an original drivetrain component designed for BMW vehicles with automatic transmissions. This is a used, fully functional transfer case that allows for professional repair or replacement of a damaged component in G-generation 3 Series, 5 Series, and X3 models. Thanks to the factory ATC13 design, proper integration with the vehicle's electronics and xDrive system is maintained.

Specifications and technical data

• SKU: 9470187
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9470187
• Substitutable numbers: 9470187, 27109470187, 9469019, 27109469019, 8485036, 27108485036, 8740625, 27108740625, 27108687370, 8687370, 27108689416, 8689416
• Gearbox type: Automatic
• Category: Transfer Cases

Purpose and compatibility

The presented ATC13 transfer case has been designed to work with the all-wheel-drive system in modern G-series BMW models, such as the G20, G30, G31, and X3 G01. The OEM design ensures proper torque distribution between the axles, stable operation of the xDrive system, and correct communication with the vehicle's factory control units.

By using an original component, the mounting geometry, correct gear ratios, and operating characteristics specified by the manufacturer are preserved. This solution is particularly recommended for repairs following drivetrain failure, where precise part matching is required.

Construction and technical characteristics

The ATC13 transfer case works with an automatic transmission, meaning its construction is adapted to dynamic load changes and operation in both comfort and sport modes. The mechanical and control solutions employed allow for smooth power distribution, reducing jerks and unwanted vibrations in the drivetrain.

As an item in the Transfer cases category, it is responsible for:

• transferring torque from the main transmission to the front and rear axles,
• cooperating with electronic stability control and traction control systems,
• maintaining proper drive proportions under various road conditions.

The original BMW design minimizes the risk of improper drivetrain operation, which is important for both component durability and driving safety.

Practical application and benefits of installation

Using this transfer case to replace a worn or damaged unit allows for the restoration of proper xDrive operation without the need for costly system overhauls. A used OEM component is a reasonable compromise between repair costs and maintaining a high level of reliability.

Key benefits of installation include:

• factory fitment for mounts and drive shafts in G20, G30, G31, and X3 G01 models,
• preservation of original drivetrain operating parameters,
• no need for mechanical adaptation of the housing or flanges,
• compatibility with existing control wiring and sensors (depending on vehicle configuration).

As a result, the ATC13 transfer case is suitable for both routine service repairs and professional vehicle restoration after mechanical damage.

Condition, verification, and OEM selection

The item is sourced from disassembly and is offered as a used BMW transfer case. Before being listed for sale, it undergoes inspection for mechanical housing damage and the completeness of key mounting elements. This makes it a solid base for installation or further service maintenance in accordance with workshop procedures.

The selection of a transfer case for a specific vehicle should be based on the OEM number and interchangeable part numbers, as well as data from manufacturer catalogs and the drive configuration. Proper matching eliminates the risk of gear ratio mismatches, control differences, or vehicle electronics issues.

If you want to better understand how to safely purchase used drivetrain components, including transmissions and related parts, it is worth checking out our expert guide: Why it is worth buying used transmissions and engines – facts instead of myths.

Expanding the BMW drivetrain

If you are planning a comprehensive repair or upgrade of your BMW's drivetrain and need other elements from the same group, such as additional transfer cases, housings, or compatible drivetrain components, check out the available parts in the BMW Transfer cases category.

Choosing original components from this group allows you to maintain the structural integrity of the entire drivetrain, which translates into stable handling, predictable vehicle behavior, and reduced wear on other power transmission components.