Automatic Gearbox BMW G30 G31 530dX G32 630dX B57 GA8HP75X 8744940 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 530dX G32 630dX B57 GA8HP75X WARRANTY is a factory-original automatic transmission designed for BMW models equipped with the B57 diesel engine and xDrive all-wheel drive. This solution is engineered for smooth gear shifting, high operational refinement, and stable torque transfer during daily use. Thanks to its design, which is tailored to the specific drivetrain configuration, it ensures seamless integration with the vehicle's powertrain and electronics.

Specifications and technical data

• SKU: 8744940
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8744940
• Substitutable numbers: 8744940, 24008744940, 7953200, 24007953200, 8699187, 24008699187, 8740642, 24008740642
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented transmission belongs to the Automatic gearboxes group for BMW and has been designed to work with the B57 diesel unit in 5 Series G30 530dX and 6 Series G32 630dX models. Proper matching with the xDrive all-wheel-drive system translates into predictable vehicle behavior, correct operation of traction systems, and stable torque distribution between the axles.

The automatic transmission design is optimized for the characteristics of the diesel engine, which allows for maintaining an optimal RPM range during acceleration, overtaking, and highway driving. As a result, the driver receives a comfortable yet dynamic response from the powertrain without the need for manual gear shifting.

Technical and functional characteristics

The GA8HP75X automatic transmission was developed for precise, multi-stage gear shifting, which promotes both fuel economy and the maintenance of proper dynamics. The applied transmission architecture enables:

• smooth gear switching under varying diesel engine loads,
• effective use of torque across the full speed range,
• stable cooperation with xDrive drivetrain control systems.

Automatic transmission control allows for comfortable driving in urban traffic and on long routes, reducing jerking and unwanted powertrain stress. Properly selected gear ratios also support maintaining reasonable fuel consumption while preserving appropriate performance.

Condition, origin, and benefits of installation

The offered transmission comes from the BMW product line and is a used component, which allows for an economical repair or replacement of a damaged gearbox in the vehicle. Choosing an original automatic transmission from the same design family minimizes the risk of mechanical fitment issues and integration problems with the control electronics.

By installing this transmission in your BMW G30 530dX or G32 630dX, you gain:

• preservation of the factory powertrain operating characteristics,
• consistency of operation with existing vehicle controllers and software,
• the ability to restore full drivetrain functionality at controlled service costs.

Why choose this automatic transmission

Selecting a transmission for a modern BMW with a diesel engine requires taking into account the drive type, the characteristics of the B57 unit, and cooperation with safety and comfort systems. Automatic Gearbox BMW G30 G31 530dX G32 630dX B57 GA8HP75X WARRANTY meets these requirements by offering a design tailored to the specific vehicle configuration. It is a solution that allows you to restore proper drivetrain operation without compromising on refinement or functionality.

If you are planning a comprehensive repair or upgrade of your BMW's powertrain area and need other components from the same group, such as torque converters, control elements, or additional transmission parts, check the available parts in the BMW automatic gearboxes category.

Practical tips before purchase

Before installing a used automatic transmission, it is worth verifying adaptation procedures, transmission fluid requirements, and service recommendations for the specific BMW model. It may also be helpful to familiarize yourself with typical signs of wear and methods for assessing the condition of the transmission before installation.

To better prepare for the purchase and installation, it is worth using a guide describing the differences between manual and automatic transmissions, typical faults, and key inspection points when choosing a component from the secondary market – you will find them in the article Gearbox: manual, automatic or DSG – typical faults and a guide to buying a used transmission.