BMW E60 E61 545i E63 E64 645Ci N62 Automatic Gearbox GA6HP26Z 7547885 WARRANTY

Listing details

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

BMW E60 E61 545i E63 E64 645Ci N62 Automatic Gearbox GA6HP26Z is a factory-fitted automatic transmission designed for the powerful N62 petrol engines in 5 and 6 Series models. It offers smooth gear shifting, high operating refinement, and parameters tailored to the characteristics of V8 engines, resulting in a comfortable and dynamic driving experience. This is the solution for users who expect compliance with factory specifications and stable drivetrain performance.

Specifications and technical data

• SKU: 7547885
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7547885
• Substitutable numbers: 7547885, 24007547885, 7558963, 24007558963
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility with BMW models

The described automatic gearbox has been designed to work with the N62 petrol engine in BMW 5 Series E60/E61 545i and BMW 6 Series E63/E64 645Ci models. The design of the GA6HP26Z transmission is adapted to the torque of V8 units, ensuring appropriate mechanical durability and correct gear ratios for daily use and highway driving. Using an original automatic gearbox in these models allows you to maintain the factory characteristics of acceleration, fuel consumption, and shifting comfort.

Technical characteristics and transmission operation

The GA6HP26Z automatic gearbox belongs to the Automatic gearboxes group used in BMW vehicles with petrol engines. It has been constructed with a focus on precise, multi-stage gear shifting, which enables the maintenance of optimal N62 engine RPM across a wide speed range. The applied hydraulic-electronic control technology allows for adaptation to the driver's driving style, reduction of jerking, and improvement in the smoothness of starting and downshifting.

In combination with the petrol unit, the gearbox ensures:

• stable torque transfer across the full load range,
• consistent operation with engine and drivetrain control systems,
• comfortable gear shifting in both city and highway modes.

Drivetrain application and installation benefits

The GA6HP26Z automatic transmission plays a key role in the BMW drivetrain with the N62 engine, being responsible for the efficient use of power and torque. Using an original gearbox instead of a worn or damaged component allows for restoring proper drivetrain operation, reducing the risk of slippage, shifting delays, and unwanted vibrations. For workshops and users, this means predictable installation, fitment to factory mounts, and compatibility with the existing control system.

As an item from the Automatic gearboxes category, this product is intended for drivers who expect to maintain the original vehicle performance characteristics without the need for software modifications or the adaptation of non-standard solutions.

Condition, origin, and practical aspects of the purchase

The offered gearbox is a used component, which allows for an economical restoration of vehicle efficiency while maintaining the factory design. For many users of BMW 5 and 6 Series with the N62 engine, this is a reasonable alternative to costly refurbishment or purchasing a new component. Before installation, standard service procedures are recommended, such as checking the transmission oil cooling system, verifying tightness, and performing adaptation procedures in accordance with the vehicle manufacturer's guidelines.

To better assess when choosing a used transmission is cost-effective and what to pay attention to during installation, it is worth reading the guide: Used gearbox – when is it worth it and what you need to remember. The article discusses the differences between manual and automatic gearboxes, compatibility issues, and practical aspects of the purchase.

Drivetrain expansion and selection of related components

Replacing an automatic gearbox in a BMW with an N62 engine is often associated with an inspection of the entire drivetrain, including the driveshaft, differential, and control elements. Good practice involves comprehensive diagnostics, which helps avoid secondary faults resulting from excessive play or wear of other components. For users planning a wider range of work on the drivetrain, the guide regarding used differentials and drivetrain components may be helpful: Second-hand differential – what is worth knowing about used differentials, sensors, and drivetrain systems.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as a torque converter, transmission housings, or control elements, check the available parts in the BMW Automatic gearboxes category.