Automatic Gearbox BMW F30 F31 LCI F32 320iX 420iX B48 GA8HP50X 8665291 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 F30 F31 LCI F32 320iX 420iX B48 GA8HP50X is a factory-fitted automatic transmission from the Automatic gearboxes group, designed for BMW vehicles with petrol engines and xDrive all-wheel drive. This is a solution for users who expect precise drivetrain operation, the preservation of original gear-shifting characteristics, and high compatibility with the vehicle's electronics.

Specifications and technical data

• SKU: 8665291
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8665291
• Substitutable numbers: 8665291, 24008665291, 9487623, 24009487623, 8670599, 24008670599, 8693349, 24008693349, 8653953, 24008653953, 7544900, 24007544900, 8662807, 24008662807, 8484647, 24008484647, 8678665, 24008678665, 8659905, 24008659905, 8699299, 24008699299, 9426284
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The described automatic gearbox has been designed for BMW 3 Series F30 LCI and 4 Series F32 models in 320iX and 420iX versions with the B48 unit, ensuring proper matching to the torque parameters and characteristics of the petrol engine. Using an original transmission from the same design family allows for the retention of factory gear-shifting strategies, cooperation with the xDrive all-wheel-drive system, and the correct operation of driver assistance systems.

Technical characteristics of the GA8HP50X automatic transmission

The GA8HP50X type automatic gearbox belongs to modern torque converter transmissions that combine smooth gear shifting with efficient power transfer. The design is optimized for petrol engines, which translates into appropriate gear ratios, stable starting, and predictable reactions to accelerator pedal input.

In practice, this means:

• consistent operation with the factory BMW control software,
• proper cooperation with driving modes (comfort, sport – depending on the car's configuration),
• maintaining the proper refinement of the drivetrain during daily use.

Benefits of using an original automatic gearbox

Using an original gearbox from the Automatic gearboxes BMW group allows you to reduce the risk of compatibility issues that often appear when installing replacements or transmissions from other configurations. You receive a component designed to work with a specific type of fuel, drivetrain, and vehicle control units, which facilitates the adaptation and diagnostic process.

Key advantages include, among others:

• preservation of factory drivetrain performance parameters,
• easier integration with the existing electrical installation and control units,
• the ability to use standard BMW service procedures.

Professional selection by VIN and OEM numbers

To select the correct gearbox for a specific BMW unit, it is worth using the VIN and the manufacturer's catalog numbers. This allows you to verify the compatibility of the transmission version with the model year, engine variant, and drive configuration. In case of doubt, consultation with a mechanic or technical advisor who will compare the vehicle data with catalog information is recommended.

If you want to better understand how to safely choose used transmissions and what to pay attention to when verifying numbers, selection procedures, and costs, check out the guide Why it is worth buying used gearboxes and engines – facts instead of myths.

Application in BMW service and modernization

The presented automatic gearbox will work well both for the standard replacement of a damaged transmission and for upgrading the drivetrain within the same family of engines and drives. Thanks to the preservation of the original mechanical and electronic architecture, it is possible to use factory mounting points, standard lines, and existing diagnostic procedures, which shortens workshop time.

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 torque converters, control elements, or other automatic transmissions, check out the available parts in the BMW automatic gearboxes category.

Summary

Automatic Gearbox BMW F30 F31 LCI F32 320iX 420iX B48 GA8HP50X is a solution for users who want to restore the proper operation of the automatic transmission and maintain the characteristics intended by the manufacturer. The original design, matched to the petrol engine and xDrive drive, facilitates installation and subsequent service maintenance, making it a technically consistent choice when repairing or upgrading the BMW drivetrain.