Automatic Gearbox BMW F20 120d F30 F31 320d LCI B47 GA8HP50Z 8486692 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 F20 120d F30 F31 320d LCI B47 GA8HP50Z is a factory-original drivetrain component designed for BMW diesel vehicles. Thanks to its precise construction and perfect fit for specific model generations, it ensures consistent operation with the powertrain and vehicle electronics. This is the ideal solution for users who expect comfortable, smooth gear shifting in a modern BMW diesel.

Specifications and technical data

• SKU: 8486692
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8486692
• Substitutable numbers: 8486692, 24008486692
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic gearbox is dedicated to BMW 1 Series F20 120d and 3 Series F30/F31 320d LCI models with the B47 engine. Using it in specific body variants and engine units allows for maintaining factory drivetrain performance characteristics, including proper gear ratios and seamless integration with the vehicle's control systems.

Due to its Automatic Gearbox design and integration with the diesel engine control system, this component is the right choice when replacing a worn or damaged transmission in diesel-powered vehicles.

Technical and functional characteristics

The GA8HP50Z automatic transmission has been designed with dynamic yet economical driving in mind. In combination with the B47 diesel engine, it enables:

• efficient acceleration at low and medium engine speeds,
• maintaining stable engine RPM in a range conducive to fuel economy,
• comfortable gear shifting without abrupt jerks.

The automatic transmission type provides the driver with ease of operation, especially in city traffic and on long journeys, where repeatable, predictable drivetrain response is essential. Using this transmission in combination with a diesel engine allows for utilizing the high torque of the B47 unit across a wide range of driving speeds.

Application in service practice

A used automatic gearbox of this type is often chosen as a replacement part in the event of a factory transmission failure or at mileages where replacing the complete unit becomes more cost-effective than an expensive repair. In service practice, this allows to:

• reduce vehicle downtime in the workshop,
• maintain compliance with factory drivetrain performance parameters,
• limit the risk of control electronics compatibility issues.

For workshops specializing in the BMW brand, this is a component that enables repairs at a level close to manufacturer standards, while maintaining consistency with the original vehicle configuration.

Automatic gearbox in diesel vehicles

Combining an automatic transmission with a diesel unit in the BMW F20 120d and F30/F31 320d LCI B47 allows for effective use of the engine's torque characteristics. This type of configuration is particularly appreciated by drivers covering high mileages, where the following matters:

• stable drivetrain operation at constant highway speeds,
• reduced driver fatigue thanks to automated gear shifting,
• the ability to smoothly adapt gear ratios to load and driving conditions.

A properly selected automatic gearbox in a diesel car influences the refinement of the entire drivetrain and the predictability of the vehicle's behavior in various operating scenarios.

Support in selection and additional materials

When purchasing a used automatic transmission, it is worth paying attention to compatibility with the specific engine version, model year, and vehicle equipment. Both the gearbox identification data and information from the vehicle's service documentation can be helpful. For users who want to deepen their knowledge about the differences between transmissions and how to verify used components, the following article will be useful: Gearbox: manual, automatic or DSG – common faults and a guide to buying a used gearbox.

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 converters, other automatic transmissions, or related control components, check the available parts in the BMW Automatic Gearboxes category.