BMW X5 E70 LCI X6 E71 30dX N57 Automatic Auto Gearbox GA8HP70X WARRANTY

Listing details

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

BMW X5 E70 LCI X6 E71 30dX N57 Automatic Auto Gearbox GA8HP70X WARRANTY is an original automatic transmission from the Automatic transmissions group, designed for 30dX diesel units. It is a solution for users expecting stable drivetrain operation, smooth gear changes, and the preservation of BMW's factory driving characteristics.

Specifications and technical data

• SKU: 7644020
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7644020
• Substitutable numbers: 7644020, 24007644020, 7612814, 24007612814, 7630575, 24007630575, 7610696, 24007610696, 7619372, 24007619372, 7616615, 24007616615, 7605221, 24007605221
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic transmission is dedicated to BMW X5 E70 and BMW X6 E71 models in the 30dX version with a diesel engine. The GA8HP70X design was developed with the high torque of diesel units and the xDrive system in mind, which translates into appropriate durability and predictable behavior in daily operation.

Choosing this transmission allows for consistency with the vehicle's factory configuration, which facilitates integration with control electronics, safety systems, and the all-wheel-drive system. As a result, the transmission can be used both for post-accident repairs and when replacing a worn-out powertrain unit.

Operating characteristics of the GA8HP70X transmission

The GA8HP70X automatic transmission belongs to the category of modern torque converter transmissions, designed for smooth gear shifting and efficient use of diesel engine torque. The applied control concept enables:

• efficient acceleration without jerking,
• maintaining optimal engine RPM in economical driving mode,
• stable behavior at higher highway speeds,
• comfortable maneuvering in urban traffic.

Thanks to factory calibration for the 30dX unit, the transmission works with the drivetrain in a predictable manner, which is essential for both comfort and the durability of other components.

Benefits of using an original used transmission

Choosing an original used automatic transmission for the BMW X5 E70 / X6 E71 is a solution that allows you to combine cost control with the preservation of factory operating parameters. The transmission comes from dismantling, which means the original design is preserved without interference in the form of non-factory modifications.

Compared to remanufacturing, using a complete, verified unit often shortens repair time and limits the risk of problems resulting from an improperly performed rebuild process. For many users, this is a reasonable compromise between durability and the budget allocated for drivetrain repairs.

If you want to better understand when an original used transmission can be a beneficial alternative to remanufacturing, it is worth reading an article describing typical symptoms of damage and the costs of manual transmission repairs: why an original used transmission is sometimes a more reasonable choice than remanufacturing.

Application in BMW diesel drivetrains

The GA8HP70X transmission was designed to work with the 30dX diesel engine, which means the gear ratios are appropriately adapted to the torque characteristics and the specifics of the diesel unit's operation. In practice, this translates into:

• efficient starting from a standstill with a loaded vehicle,
• stable power delivery across the entire speed range,
• better traction control in combination with the xDrive system,
• optimized fuel consumption while maintaining driving dynamics.

By maintaining the factory drivetrain configuration, installing this transmission allows you to restore the vehicle's original driving properties, which is important for both comfort and user safety.

BMW automatic transmissions – expansion and modernization

If you are planning a comprehensive repair or modernization of the drivetrain area in your BMW and need other elements from the same group, such as a torque converter, control elements, or additional hydraulic components, check the available parts in the BMW automatic transmissions category.

Summary

BMW X5 E70 LCI X6 E71 30dX N57 Automatic Auto Gearbox GA8HP70X WARRANTY is a proposal for drivers who want to restore the proper operation of the drivetrain while maintaining factory parameters and driving characteristics. The original design, intended use for the diesel engine, and integration with the xDrive system make it a practical solution when replacing a worn-out transmission in demanding X5 and X6 models.