Automatic Gearbox BMW G20 320dX G30 G31 LCI 520dX B47D GA8HP51X 5A047C6 WARRANTY

Listing details

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

Automatic Gearbox BMW G20 320dX G30 G31 LCI 520dX B47D GA8HP51X is a factory-original automatic transmission designed for modern BMW diesel models. Thanks to its precise construction and optimized control, it ensures smooth gear shifts, comfortable driving, and stable torque transfer in daily use. This is the ideal solution for drivers who expect proven, original technology and want to maintain full compliance with the factory powertrain specifications.

Specifications and technical data

• SKU: 5A047C6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A047C6
• Substitutable numbers: 5A047C6, 24005A047C6, 9844330, 24009844330, 9844331, 24009844331
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical characteristics

The described automatic transmission is designed to work with the Diesel engine in BMW 3 Series G20 320dX and 5 Series G30 LCI 520dX models with the B47D engine. It belongs to the Automatic transmissions category, which means it features an integrated gear control system optimized for dynamic yet economical driving. The Automatic design eliminates the need for manual gear shifting, ensuring predictable drivetrain responses in both city traffic and on the highway.

The transmission is factory-adapted to work with the xDrive system in the 320dX and 520dX versions, which translates into seamless operation with the drivetrain and vehicle stability systems. The design solutions used allow for efficient torque transfer from the diesel engine while maintaining the refinement typical of modern BMW automatic transmissions.

Benefits of using this automatic transmission in the BMW G20 / G30 LCI

Choosing this transmission primarily means driving comfort – smooth, predictable gear changes reduce jerking and improve vehicle stability. The automatic operating characteristics also support the driver in situations requiring frequent stopping and starting, which is particularly noticeable in city traffic.

Key advantages include:

• optimized cooperation with the diesel engine in terms of torque,
• consistency with factory BMW drivetrain control systems,
• preservation of the original driving characteristics intended for the G20 320dX and G30 LCI 520dX models,
• ability to utilize the driving modes offered by the vehicle (e.g., more dynamic or comfortable, if available in the specific unit).

As a result, the transmission provides a solid foundation for restoring full powertrain functionality after a failure or wear of the previous unit.

Condition, origin, and vehicle compatibility

The offered transmission comes from the BMW brand and is a used component, which allows for cost-effective vehicle restoration while maintaining the manufacturer's original technology. For workshops and users, this means the ability to install a component that complies with factory specifications without the need to adapt aftermarket solutions with uncertain parameters.

The item has an assigned OEM part number and available interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. Before purchasing, it is worth comparing the markings with the car's specification or consulting a mechanic to confirm full compatibility with the given engine and drivetrain version.

Application in service practice

This type of automatic transmission is particularly useful in situations where the existing transmission has suffered a major failure and repair or full regeneration proves uneconomical. Using a complete, used unit allows for shorter vehicle downtime and simplifies the service process – the mechanic replaces the entire assembly instead of disassembling and diagnosing numerous internal components.

If you are considering whether choosing a used transmission is the right solution for your car, it is worth checking out practical tips regarding cost-effectiveness and selection criteria. A detailed discussion can be found in the article Used transmission – when is it worth it and what you need to remember, which compares different approaches to drivetrain repair.

Expanding work within the BMW drivetrain

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as additional automatic transmissions, housings, or related mounting components, check out the available parts in the BMW automatic transmissions category.