Automatic Gearbox BMW G30 G31 530d G32 GT 630d B57 GA8HP75Z 8740640 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 G30 G31 530d G32 GT 630d B57 GA8HP75Z is an original component from the Automatic Gearboxes group, designed for modern BMW diesel engines. This used automatic transmission provides a functional service solution for drivers expecting factory compatibility, while maintaining the operating characteristics specific to BMW diesel powertrains.

Specifications and technical data

• SKU: 8740640
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8740640
• Substitutable numbers: 8740640, 24008740640, 8744938, 24008744938, 7953198, 24007953198, 8699182, 24008699182
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical characteristics

The presented gearbox belongs to the BMW Automatic Gearboxes group and is designed to work with diesel engines in 5 Series G30/G31 and 6 Series G32 GT models. The Automatic design ensures smooth gear shifting, optimized for the high torque of the diesel unit, which translates into stable acceleration and comfortable driving across the full load range.

This solution is particularly beneficial for vehicles used on long routes, where efficient torque utilization, reduced jerking, and predictable drivetrain behavior are essential. The applied automatic transmission architecture allows for precise gear shift control by the vehicle's electronics, supporting both economical modes and more dynamic driving.

Benefits of using an original BMW automatic gearbox

Choosing an original, used automatic gearbox for a BMW diesel engine is a solution that maintains the integrity of the entire drivetrain. The transmission is designed for specific loads and the operating characteristics of the B57 unit, ensuring that:

• proper acceleration dynamics are maintained across the full speed range,
• the vehicle's control unit can utilize factory-defined shift maps,
• the operating refinement typical of modern premium BMW models is preserved.

For the user, this means predictable throttle response, reduced unwanted vibrations, and consistent operation of driving assistance systems that interact with the automatic transmission.

Condition, origin, and selection by part numbers

The offered gearbox is in the Used category, which in practice means a component sourced from dismantling, intended for further use after proper installation and service maintenance. To ensure proper selection for a specific vehicle, it is crucial to compare the OEM part number and available interchangeable numbers with the manufacturer's specifications or the vehicle's service documentation.

When selecting an automatic transmission, it is worth paying attention to compatibility with the fuel type (Diesel) and the drivetrain version of the given BMW model. Proper matching eliminates the risk of electronic communication issues, incorrect gear shifting, or errors in diagnostic systems.

Professional installation and operation

To fully utilize the potential of this automatic gearbox, installation in a specialized service center with experience in modern BMW transmissions is recommended. Proper filling with the correct oil, system bleeding, and performing gearbox adaptation in the vehicle's control unit are crucial for durability and operating refinement. After installation, it is advisable to conduct a test drive while observing the gearbox behavior in various operating modes to confirm correct interaction with the powertrain and vehicle electronics.

Expert support and additional information

If you want to better understand how to safely and consciously invest in used drivetrain components, including automatic transmissions and engines, the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths will be helpful, covering topics such as OEM number selection, verification procedures, and cost aspects.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other components from the same group, such as a torque converter, control elements, or additional transmission parts, check out the available parts in the BMW Automatic Gearboxes category.