BMW F30 F32 F33 N57Z xDrive Automatic Gearbox GA8HP70Z 8623251 WARRANTY

Listing details

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

BMW F30 F32 F33 N57Z xDrive Automatic Gearbox GA8HP70Z is a factory-original automatic transmission from the BMW range, designed for 3 Series models equipped with xDrive and the N57Z engine. It offers precise, smooth gear shifting and stable integration with the all-wheel-drive system, resulting in comfort and predictable vehicle handling. This is the ideal solution for users seeking an original, perfectly matched automatic transmission rather than random replacements.

Specifications and technical data

• SKU: 7644619
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7644619
• Substitutable numbers: 24007644619, 7644619, 8623251
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Application and compatibility with the xDrive system

The described automatic transmission has been designed to work with the N57Z engine and xDrive system in BMW F30, F32, and F33 body styles. The transmission's construction is tailored to the torque characteristics of the diesel unit and the requirements of the all-wheel-drive system. As a result, the drivetrain remains consistent, and throttle response, downshifts, and acceleration are predictable and repeatable.

The GA8HP70Z family automatic transmission provides multi-stage gear shifting, which allows the engine to stay within the optimal RPM range during both city and highway driving. Well-chosen gear ratios promote calm, economical driving while enabling dynamic acceleration when needed.

Automatic transmission operating characteristics

As an item from the Automatic transmissions category, this gearbox was built with a focus on smoothness and operational stability. The applied automatic control type is responsible for:

• selecting gear ratios based on engine load and driving style,
• smooth, predictable gear changes without jerking,
• efficient use of torque across the full speed range.

In practice, this means comfortable driving in traffic, efficient overtaking, and stable vehicle behavior at higher speeds. The automatic operating mode relieves the driver while allowing full utilization of the xDrive system's potential in various road conditions.

Benefits of choosing an original used BMW gearbox

An original BMW automatic transmission, even as a used component, maintains factory-spec compatibility with the specific drivetrain configuration and vehicle electronics. This translates into:

• consistent operation with factory controllers and software,
• proper cooperation with safety and traction control systems,
• reduced risk of compatibility issues during installation.

For many users, this is a reasonable alternative to costly overhauls or unreliable replacements. If you want to better understand when an original used transmission may be a more beneficial solution than repair, it is worth reading the article: Manual transmission failures and choosing an original used gearbox.

Condition, verification, and preparation for installation

This item comes from dismantling and is offered as a used BMW automatic transmission. Before being listed for sale, it undergoes basic verification for completeness and potential for further operation. This type of transmission is intended for installation by a specialized workshop that has the appropriate equipment for servicing automatic gearboxes and experience working with the xDrive system.

Professional installation includes, among other things, checking the transmission oil cooling system, proper filling and venting, and adapting the gearbox in the vehicle's controller. This ensures stable, repeatable transmission performance and reduces the risk of irregularities after replacement.

Expanding the BMW drivetrain – related components

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 additional gearboxes, complete mounting kits, or other control modules, check the available parts in the BMW automatic transmissions category.

To maintain the durability of the entire drivetrain, it is also worth ensuring the correct operating temperature of the engine and transmission oil. More about the impact of the cooling system on component longevity can be found in the guide: Engine cooling system – overheating, repair, and used radiators.