BMW X1 E84 Automatic Gearbox 20iX 28iX Petrol N20 GA8HP45X 8609949 WARRANTY

Listing details

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

BMW X1 E84 Automatic Gearbox 20iX 28iX Petrol N20 GA8HP45X is a factory-spec automatic transmission designed for BMW X1 E84 models with xDrive. The design, based on modern multi-stage automatic technology, ensures smooth gear shifting, high operational refinement, and efficient torque transfer during daily use. This is the ideal solution for users who expect precise drivetrain performance while maintaining the manufacturer's original specifications.

Specifications and technical data

• SKU: 8609949
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8609949
• Substitutable numbers: 8609949, 24008609949, 8601661, 24008601661
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic transmission has been designed to work with the N20 engine in the 20iX and 28iX versions of the BMW X1 E84. The carefully selected gear ratios and operating characteristics are tailored to the petrol engine, allowing for the retention of factory performance, predictable throttle response, and proper drivetrain loading. Using an original transmission from the Automatic transmissions category minimizes the risk of mechanical and electronic compatibility issues.

Construction and operating characteristics

The GA8HP45X automatic transmission belongs to the family of modern torque converter transmissions, where the priority is smooth gear shifting and efficient use of engine power. The multi-gear architecture enables:

• maintaining optimal engine RPM across a wide speed range,
• efficient acceleration without jerking,
• reduced fuel consumption compared to older automatic designs.

Thanks to precise electronic control, the transmission reacts predictably during both calm city driving and dynamic acceleration, which translates into comfortable and stable drivetrain operation.

Application in the BMW X1 E84 drivetrain

In X1 E84 models with xDrive, the automatic transmission plays a key role in distributing torque between the axles. Proper cooperation with the engine control system and traction systems allows for vehicle stability, predictable behavior on slippery surfaces, and correct operation of driving modes. Replacing a worn-out transmission with an original unit of this type allows for the restoration of proper drivetrain operation without the need to interfere with the vehicle's factory configuration.

Condition, verification, and selection

The offered transmission comes from the used parts segment, which allows for economical repair while maintaining original BMW specifications. Before installation, a standard workshop procedure is recommended: checking for leaks, verifying mounting points, inspecting connectors, and preparing the appropriate oil and accessories in accordance with the vehicle manufacturer's recommendations. It is always worth confirming the selection of the transmission for a specific vehicle based on vehicle data and information from the technical specification list.

Technical support and additional information

To better understand the differences between various types of transmissions and to consciously plan the purchase of a used gearbox, it is worth reading our guide: Manual, automatic, or DSG transmission – common faults and a guide to buying a used gearbox. The article discusses the characteristics of individual solutions, common signs of wear, and practical tips regarding installation and operation.

If you are planning a comprehensive repair or upgrade of your BMW's drivetrain area and need other components from the same group, such as converters, control elements, or additional transmission parts, check out the available parts in the BMW automatic transmissions category.