BMW E65 E66 740i N62N Automatic Gearbox GA6HP26Z 7556840 WARRANTY

Listing details

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

BMW E65 E66 740i N62N Automatic Gearbox GA6HP26Z is an original, used automatic transmission designed for petrol engines in the BMW 7 Series. Engineered as a premium drivetrain component, it ensures smooth gear shifting, driving comfort, and the proper performance characteristics of the N62N engine. Thanks to its factory BMW design, it is a solution perfectly matched in terms of construction and electronics to this model, which facilitates installation and subsequent operation.

Specifications and technical data

• SKU: 7556840
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7556840
• Substitutable numbers: 7556840, 24007556840, 7556539, 24007556539, 7550783, 24007550783
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Purpose and technical specifications

The offered gearbox belongs to the Automatic transmissions group for BMW and is dedicated to 7 Series E65/E66 petrol vehicles in the 740i version with the N62N unit. The automatic transmission design has been developed for the high torque of the V8 engine, ensuring stable power transmission, appropriate operating culture, and predictable throttle response.

As an OEM BMW component, the gearbox is factory-adapted to work with the original control software, oil cooling system, and other drivetrain components. This allows for maintaining the consistency of the entire drivetrain and reduces the risk of compatibility issues.

Benefits of using an automatic gearbox in the BMW 740i N62N

The automatic transmission in the BMW 740i N62N was designed to combine driving comfort with the dynamic characteristics of a petrol engine. Using this gearbox allows for:

• smooth and predictable gear shifting across the full rev range,
• proper gear ratio matching for the V8 engine's operating characteristics,
• stable power delivery at higher highway speeds,
• comfortable city driving without the need for manual gear changes.

Thanks to the factory BMW design, the gearbox works with the vehicle's electronic systems, such as drive mode control or safety systems, which translates into consistent operation of the entire drivetrain.

Selecting a used gearbox and installation aspects

When choosing a used automatic gearbox for a BMW E65/E66, it is crucial to match it to the specific engine version, fuel type, and control system used. The offered transmission is intended for petrol units, which is important both in terms of gear ratios and control software. Proper selection of the gearbox allows for reduced installation time and avoids additional wiring modifications.

As a used component, the gearbox is a cost-effective solution compared to a new transmission or a full rebuild, while maintaining the original BMW design. It is recommended to entrust the installation to a specialized service center that will ensure proper filling with the correct oil, system bleeding, and gearbox adaptation in the vehicle's ECU.

If you want to better assess when choosing a used transmission is economically and technically justified, it is worth reading our guide: Used gearbox – when is it worth it and what you need to remember.

Application in the BMW drivetrain

The automatic gearbox in the BMW 7 Series plays a key role in shaping the driving experience – from starting and accelerating to maintaining cruising speeds. In combination with the N62N petrol engine, the transmission provides:

• appropriate gear ratios for city and highway driving,
• proper cooperation with traction control and electronic stability systems,
• the ability to utilize the full potential of the engine while maintaining comfort.

Thanks to this, the BMW E65 E66 740i N62N Automatic Gearbox GA6HP26Z is the right choice for users who expect to maintain the factory driving characteristics after a repair or transmission replacement.

Expanding the BMW drivetrain – Automatic transmissions

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