BMW F40 M135iX F44 M235iX B48E Automatic Gearbox GA8G45XAW 8487133 WARRANTY

Listing details

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

BMW F40 M135iX F44 M235iX B48E Automatic Gearbox GA8G45XAW is an original, factory-spec automatic transmission from the BMW range, designed for modern, high-performance B48E petrol engines. It serves as a solid foundation for professional drivetrain repair, ensuring precise structural fitment and compliance with factory standards. By maintaining the specific configuration for the xDrive version, the gearbox allows for predictable handling and stable operation of the all-wheel-drive system.

Specifications and technical data

• SKU: 8487133
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8487133
• Substitutable numbers: 8487133, 24008487133
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic gearbox is designed for BMW F40 M135iX and BMW F44 M235iX models with the B48E engine and xDrive system. This ensures the correct mounting geometry, appropriate gear ratios, and full compatibility with the factory engine and drivetrain control systems. Using a transmission from the same design family minimizes the risk of electronic and mechanical integration issues during installation.

Automatic gearbox characteristics

The automatic design of the transmission ensures smooth gear shifts and comfortable operation in both city traffic and on the highway. Transmission type: automatic implies integration with the vehicle's electronic control system, including driving modes and driver assistance systems. The transmission is engineered to handle the high torque of the B48E unit, which is essential for dynamic driving.

The proper configuration of this gearbox allows for:

• maintaining appropriate acceleration dynamics,
• stable operation under full load conditions,
• correct cooperation with the xDrive system.

Benefits of using an original BMW transmission

Using an original BMW automatic gearbox to replace a damaged unit allows you to maintain the factory performance parameters of the drivetrain. You receive a component designed specifically for the given model, with precisely matched gear ratios and shift logic. This solution is particularly beneficial for repairs of vehicles used intensively, where predictable vehicle behavior and consistency with the factory configuration are essential.

The product belongs to the Automatic gearboxes category, which facilitates the selection of complementary parts, such as mounting elements, oil cooling systems, or control accessories. Combined with proper diagnostics and oil service, this allows for the restoration of the entire drivetrain to proper working order.

Condition and service application

The gearbox is a used component, which in practice offers a cost-effective solution while maintaining original BMW specifications. This type of transmission is suitable both for standard replacement of a damaged unit and for comprehensive drivetrain rebuilding after a failure. The BMW brand guarantees structural consistency with other vehicle components, which is important for future operation and diagnostics.

Selection, diagnostics, and technical knowledge

When choosing a used automatic gearbox, it is crucial to verify compatibility with the specific engine and drivetrain version of the vehicle and to assess the condition of the accompanying equipment. To better understand the differences between manual, automatic, and dual-clutch transmissions, typical failure symptoms, and the principles of safely purchasing a used gearbox, it is worth consulting our guide: Gearbox: manual, automatic, or DSG – typical failures and a guide to buying a used gearbox. The article helps to consciously assess the technical condition and select the right component for a specific application.

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 a torque converter, control elements, or additional mounting parts, check out the available parts in the BMW automatic gearboxes category.