Description
The BMW 7 E66 Long 730Ld Automatic Transmission Driveshaft is an original drivetrain component, specifically designed for the luxurious 7 Series. Thanks to the precise construction of its Cardan joints, it ensures stable torque transfer and proper cooperation with the petrol engine and automatic transmission.
Specifications and technical data
- SKU: 7573488
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 7573488
- Substitutable numbers: 26107573488, 7573488, 26107552214, 7552214
- Weight: 150
- Fuel type: Petrol
- Gearbox type: Automatic
- Category: Propshafts
Purpose and Compatibility
The presented driveshaft is dedicated to the BMW 7 Series E66 Long 730Ld model, equipped with an M57N2 engine and an automatic transmission. This component belongs to the Cardan Joints group, responsible for the flexible and secure connection between the gearbox and the rear axle, while maintaining the correct suspension and drive geometry.
Due to its original BMW origin, the correct lengths, diameters, and mounting points are preserved, which translates to proper cooperation with the factory drivetrain components and minimizes the risk of vibrations or noise during driving.
Construction and Role of Cardan Joints
The driveshaft with Cardan joints in this model is responsible for:
- compensating for angular changes between the automatic transmission and the drive axle,
- smooth torque transfer under various loads,
- reducing torsional vibrations in the drivetrain,
- maintaining stable drive operation at higher highway speeds.
A properly selected driveshaft is crucial for driving comfort, the refinement of the drivetrain’s operation, and the durability of other components, such as transmission mounts, support bearings, and rear axle elements.
Technical and Operational Characteristics
The component has been designed to work with an automatic transmission and a petrol engine, meaning it is adapted to the specific loads and torque characteristics of this powertrain configuration. The driveshaft’s design takes into account the vehicle’s weight in the Long version, wheelbase length, and vibration damping requirements for the luxury car segment.
This product is from the used parts category, allowing for an economical repair of the drivetrain while maintaining the original BMW construction. The driveshaft has assigned OEM part numbers and interchangeable numbers, which facilitates verification of compatibility with specific vehicle configurations in the manufacturer’s catalogs.
Selection, Installation, and Benefits of Use
When selecting a driveshaft for the BMW 7 E66 Long 730Ld, it is crucial to check compatibility with the OEM part number and reference numbers, as well as confirm the transmission type and fuel type. A properly selected component:
- limits the risk of improper drivetrain balancing,
- ensures correct cooperation with the joints and driveshaft support,
- allows for maintaining factory driving dynamics and comfort parameters,
- reduces the loads transferred to the automatic transmission and rear axle.
Additionally, the driveshaft has a specified structural weight, which is important for balancing the entire system, impacting the durability of bearings and associated components.
BMW Drivetrain Expansion
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, flexible joints, or driveshaft supports, check the available parts in the BMW Cardan Joints category.
To better understand the impact of drivetrain and suspension components on vehicle handling and the cost-effectiveness of using used parts, it is worth reading the technical guide: Stock vs. Sport Suspension – Construction Differences and Selection of Used Parts.
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