BMW E60 E63 545i 645Ci N62 Automatic Auto Gearbox GA6HP26Z WARRANTY

The BMW E60 E63 545I 645Ci N62 Automatic Transmission GA6HP26Z is an original, used automatic gearbox designed for BMW models with the N62 engine. The transmission ensures smooth gear changes, maintaining the factory powertrain characteristics and proper integration with the vehicle's electronics. This is a solution for users who expect consistency with factory BMW specifications and want to restore proper drivetrain operation.

Specifications and technical data

• SKU: 7544617
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7544617
• Substitutable numbers: 24007544617, 7544617, 24007532358, 7532358, 24007541155, 7541155, 24007534630, 7534630
• Gearbox type: Automatic
• Category: Other Transmission & Drivetrain

Purpose and Compatibility

The presented automatic transmission is dedicated to the BMW E60 and E63 series in the 545i and 645Ci versions with the N62 unit. Using a gearbox that complies with the original design allows for maintaining:

• correct cooperation with the N62 gasoline engine,
• compatibility with factory control unit software,
• appropriate gear shifting characteristics in comfort and dynamic modes,
• consistency with the original BMW drivetrain architecture.

Thanks to this, the gearbox is a safe choice for repairing or replacing an existing transmission in these models.

Technical Characteristics of the GA6HP26Z Automatic Transmission

The type of transmission used is an automatic gearbox, designed to work with advanced traction control and stabilization systems in BMW vehicles. The GA6HP26Z design enables:

• automatic gear changes considering engine load and driving style,
• cooperation with electronic systems responsible for comfort and safety,
• efficient torque transfer to the rear wheels,
• maintenance of proper operational smoothness during daily use.

An automatic transmission of this type is designed for stable operation across a wide range of loads, which is important for both city and highway driving.

Application in BMW Service and Repairs

The GA6HP26Z gearbox for BMW E60 and E63 is suitable for professional workshops and individual users planning comprehensive drivetrain repairs. A used OEM gearbox allows for:

• restoring factory drivetrain operating parameters without the need to adapt aftermarket solutions,
• maintaining the original gear shifting logic intended by the manufacturer,
• minimizing the risk of vehicle electronics compatibility issues,
• preserving consistency with other drivetrain components.

This is particularly important for BMW-class cars, where precision of component matching directly impacts driving comfort and component durability.

Part Category, Brand, and Identification

This item belongs to the Other category, meaning it is a specialized drivetrain component that does not fall into typical wear parts groups. Its original BMW origin helps maintain a uniform quality standard throughout the vehicle. The product has assigned part numbers and interchangeable numbers, which facilitates unambiguous identification in catalogs and service systems, as well as the selection of the correct gearbox for a specific car configuration.

Condition and Benefits of Using a Used Gearbox

The offered automatic transmission is a used part, which significantly reduces repair costs compared to a new OEM component. At the same time, structural compatibility with the original BMW solution is maintained, which is an advantage over many aftermarket alternatives. Choosing a used gearbox of this type is a good compromise between cost and maintaining proper drivetrain performance characteristics.

Other BMW Category Items

If you need other items from the Other BMW category for your car, check our offer, where you will find a wide selection of components such as Other BMW.

Technical Knowledge and Project Development

When planning drivetrain upgrades or repairs, it is worth expanding your knowledge about the design differences between sports and standard car versions. An article describing the characteristics of powertrains, brakes, and chassis in high-performance cars can be helpful – check out the material Audi RS vs. Other Models – What's Under the Hood and Chassis? to better understand how the selection of appropriate components affects vehicle behavior.

For those interested in using recycled parts in repair and modification projects, a guide on eco-tuning, available at the link Eco-Tuning in Practice: How to Increase Performance While Reducing Your Carbon Footprint with Recycled Parts, can also be a valuable addition to your knowledge. It will help you better plan your car work, considering technical and environmental aspects.