BMW F20 F21 LCI F22 F23 B47 Automatic Gearbox GA8HP50 8651263 WARRANTY

Listing details

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

BMW F20 F21 LCI F22 F23 B47 Automatic Gearbox GA8HP50 is a factory-original automatic transmission from the 8-speed torque converter family, used in modern BMW models equipped with the B47 engine. This solution is designed for smooth gear shifting, high operational refinement, and efficient torque transfer, making it ideal for professional drivetrain repair or replacement. By choosing this gearbox, you gain a component structurally matched to the drivetrain architecture of your BMW 1 Series and 2 Series.

Specifications and technical data

• SKU: 8651263
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8651263
• Substitutable numbers: 8651263, 24008651263
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Technical characteristics of the GA8HP50 gearbox

The presented gearbox belongs to the Automatic transmissions group and is designed to work with the B47 unit in BMW F20, F21 LCI, F22, and F23 models. The Automatic design provides multi-stage gear ratios, which translates into optimal utilization of the engine's characteristics across the entire rev range. The 8-speed architecture allows for precise gear selection in both city and highway driving, reducing thermal and mechanical stress on the drivetrain.

The GA8HP50 automatic transmission is designed for integration with the vehicle's electronic systems (including driving mode control and stability control systems), which enables consistent operation of the drivetrain, traction control, and safety systems. As a result, throttle response, gear selection, and shift comfort remain at a stable, predictable level.

Application in BMW F20 F21 LCI F22 F23 B47 models

BMW F20 F21 LCI F22 F23 B47 Automatic Gearbox GA8HP50 has been developed specifically for the longitudinal drivetrain layout in compact BMW 1 Series and 2 Series models. The mounting points, housing geometry, and gear ratios are matched to the parameters of the B47 engine, which facilitates installation and subsequent operation.

In practice, this means that with the correct selection of the gearbox for a specific vehicle trim level and model year, you can maintain:

• consistent operation with the factory engine and transmission control unit,
• proper functioning of driving modes (e.g., comfort, sport – if present in the given configuration),
• compliance with factory acceleration and engine speed parameters in individual gears.

Benefits of using an original BMW automatic transmission

Choosing an original gearbox from the BMW Automatic transmissions group allows you to maintain the factory design assumptions of the drivetrain. Appropriate gear ratios, matched control software, and proper operating characteristics translate into:

• stable, predictable vehicle behavior during acceleration and downshifts,
• better utilization of the B47 engine's torque across the entire speed range,
• reduced risk of improper interaction with vehicle electronics compared to non-original solutions.

Additionally, using a gearbox designed for a specific BMW platform simplifies servicing – specialists have access to technical documentation, diagnostic procedures, and dedicated tools, which speeds up the installation process and subsequent inspections.

Condition, verification, and VIN-based selection

The offered gearbox comes from the segment of used BMW components, which allows for cost-effective vehicle repair while maintaining the original design. Before installation, a standard service procedure is recommended: checking for leaks, verifying mounting points, changing the oil and filter according to the manufacturer's recommendations, and performing a transmission adaptation using appropriate diagnostic software.

To ensure full compatibility, it is worth basing the gearbox selection on the vehicle's VIN and comparing it with BMW catalog data. This helps avoid issues with differences in software, gear ratios, or accessory configurations that may exist between individual model versions and years.

Drivetrain expansion and 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 other automatic transmissions, related torque converters, or additional control components, check the available parts in the BMW Automatic transmissions category.

When replacing the gearbox, it is also worth paying attention to the condition of the transmission oil cooling system, drivetrain mounts, and drive shafts. A consistent service approach reduces the risk of secondary failures and allows you to fully utilize the potential of the newly installed transmission.

Expert support – how to buy a used automatic transmission

For users who want to take a conscious approach to purchasing and installing a used transmission, a detailed guide describing the differences between manual, automatic, and DSG gearboxes, typical symptoms of failure, and key inspection points before installation is recommended. You can find practical tips in the article "Gearbox: manual, automatic or DSG – typical faults and a guide to buying a used transmission", which helps assess the technical condition and select the right model from the offer.