BMW X3 F25 20dX N47N Diesel Automatic Gearbox 7640056 GA8HP45X WARRANTY

Listing details

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

BMW X3 F25 20dX N47N Diesel Automatic Gearbox GA8HP45X is a factory-fitted automatic transmission from the Automatic gearboxes group, designed for the diesel unit in the BMW X3 F25 20dX model with the N47N engine. This is a solution for users expecting smooth gear shifts, proper cooperation with the drivetrain, and the preservation of the original characteristics of the powertrain.

Specifications and technical data

• SKU: 7640056
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7640056
• Substitutable numbers: 7640056, 24007640056
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical specifications

The offered gearbox belongs to the BMW automatic gearboxes group and is structurally matched to the diesel drivetrain in the BMW X3 F25 20dX with the N47N engine. The GA8HP45X automatic transmission used has been designed for efficient torque transfer while maintaining driving comfort and stable operation under typical road conditions.

The automatic nature of the transmission ensures convenient operation in city traffic and on the highway, and the properly selected gear ratios help maintain optimal engine RPM for the diesel unit. As a result, the powertrain maintains proper dynamics, and gear shifts occur in a predictable and repeatable manner.

Benefits of using an original automatic gearbox

Using the original GA8HP45X gearbox in the BMW X3 F25 20dX allows for maintaining the factory operating parameters of the powertrain without the need for modifications to the control systems or accessories. This is particularly important in diesel vehicles, where precise cooperation between the engine and the transmission affects refinement, fuel consumption, and component durability.

The main advantages of this configuration include:

• consistency with the factory calibration of the engine and gearbox controller,
• preservation of the gear-shifting characteristics intended by the manufacturer,
• reduction of the risk of mechanical and electronic compatibility issues,
• the ability to utilize the existing powertrain architecture without modifications.

Condition, origin, and practical application

The transmission comes from dismantling and is offered as a used part, which allows for an economical vehicle repair while maintaining the original BMW design. This type of solution is often chosen in the event of major drivetrain failures, when regenerating the existing gearbox is unprofitable or time-consuming.

The GA8HP45X automatic gearbox will work well both as a replacement part after a failure and in the case of a comprehensive powertrain rebuild in the BMW X3 F25 20dX N47N Diesel. With proper installation and the use of the correct transmission fluid, it is possible to achieve stable, predictable transmission operation in daily use.

Selection by part numbers and technical support

Due to the specifics of BMW automatic transmissions, it is recommended to verify compatibility using catalog numbers and vehicle data (e.g., drivetrain configuration, model year, engine version) before purchasing. This helps avoid installation problems and ensures full compatibility with the existing system.

To better understand how to safely choose used powertrain components, including gearboxes for the BMW X3 F25, it is worth reading an expert guide on selection by VIN and OEM, costs, and common myths – this is discussed in detail in the article Why it is worth buying used gearboxes and engines – facts instead of myths.

Expansion of upgrades within BMW automatic gearboxes

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, control elements, or compatible mounting components, check the available parts in the BMW automatic gearboxes category.