Propshaft BMW E63 E64 645Ci N62 Drive Prop Shaft Automatic Gearbox 7555711

Propshaft BMW E63 E64 645Ci N62 Drive Prop Shaft Automatic Gearbox is an original drivetrain component belonging to the Cardan Joints category. Designed specifically for the 645Ci petrol version with the N62 engine and automatic transmission, it ensures precise torque transmission while maintaining BMW's factory characteristics.

Specifications and technical data

• SKU: 7555711
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555711
• Substitutable numbers: 7555711, 26107555711
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Propshafts

Purpose and compatibility

The presented propshaft is dedicated to BMW 6 Series E63/E64 models in the 645Ci version with the N62 petrol engine, paired with an automatic transmission. Thanks to a design compliant with BMW factory standards, this component maintains the proper geometry of the drivetrain, which translates into stable operation of the powertrain and reduction of vibrations during acceleration and high-speed driving.

Technical characteristics and role in the drivetrain

The propshaft from the Cardan Joints group is responsible for transferring torque from the automatic transmission to the rear axle, while compensating for changes in suspension and body position. The use of universal joints and flexible couplings (in the typical design of this system) allows for:

• reduction of vibrations and noise in the cabin,
• smooth load transfer during gear changes,
• stable operation of the drivetrain at various rotational speeds,
• maintaining correct alignment between the transmission and the differential.

For the N62 petrol unit and automatic transmission, it is crucial to maintain the appropriate stiffness and balance of the shaft, which affects the smoothness of the drive and the durability of other components, such as transmission mounts, the differential, or center support bearings.

Benefits of using an original BMW propshaft

Using an original BMW propshaft in the 645Ci model allows for maintaining the factory operating parameters of the drivetrain. The most important advantages include:

• Precise fit – correct length, spacing, and mounting geometry, which facilitates installation and eliminates the need for modifications.
• Compatibility with automatic transmission – properly selected connection with the transmission and rear axle, adapted to the gear-shifting characteristics of the automatic gearbox.
• Stable torque transfer – design intended for operation with the torque generated by the N62 petrol engine, even during dynamic driving.
• Reduction of the risk of unwanted vibrations and knocking resulting from the use of unsuitable replacements.

Component condition and service application

The offered propshaft is a used component, making it an attractive solution for service repairs where the priority is to combine OEM quality with reasonable costs. It is particularly useful in situations where symptoms such as vibrations during acceleration, knocking when starting, or noticeable play in the drivetrain occur, and diagnostics indicate wear of components from the Cardan joints group.

Support with selection and additional materials

When selecting a propshaft for a BMW E63/E64 645Ci with a petrol engine and automatic transmission, it is crucial to verify compatibility with the specific vehicle configuration and part numbers in the technical specification. In case of doubt, it is worth comparing parameters with service documentation or the manufacturer's catalog to ensure full installation and functional compatibility.

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 intermediate shafts, universal joints, or shaft supports, check the available parts in the BMW Cardan Joints category.

For drivers interested in a broader context of operating BMW power units and the costs of secondary market parts, an article comparing popular diesel engines may be useful – more information can be found in the material BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels.