BMW E60 E61 E63 E64 Hydro Power Steering Rack Gear Pinion 6770307

BMW E60 E61 E63 E64 Hydro Power Steering Rack Gear Pinion is an original steering system component designed for the BMW 5 and 6 Series E6x generation models. Thanks to its factory design, it ensures precise handling, proper cooperation with the power steering system, and stable vehicle behavior at higher speeds, providing a solid foundation for professional steering system repair.

Specifications and technical data

• SKU: rhd-6770307
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6770313
• Substitutable numbers: 6770313, 32106777537, 6777537, 32106768061 32106766656 32106780945 32106762449, 6768061 6766656 6780945 6762449, 32106769302 32106768064 32106766665 32106775426, 6769302 6768064 6766665 6775426, 32106773772 32106770314 6773772 6770314
• Category: Gearboxes, Racks & Pinions

Technical characteristics and intended use

The hydraulic steering rack from the Steering racks and housings group has been designed specifically for the BMW E60, E61, E63, and E64 platforms, which guarantees correct geometry, appropriate gear ratio, and compatibility with the factory suspension and power steering system. This component is responsible for transferring movement from the steering column to the wheel knuckles, and its correct operation has a direct impact on safety, driving comfort, and steering precision.

The product comes from the BMW OE line, which means compliance with factory standards for quality, tightness, and durability. Using an original steering rack allows you to avoid problems with fitment, play, or unnatural steering wheel operation, which often occur with lower-quality replacements.

Compatibility and interchangeable numbers

The steering rack has been marked as a component with a dedicated OEM part number and has assigned interchangeable numbers, which facilitates the selection of the correct component for a specific engine and equipment version of the BMW 5 and 6 Series. This makes it possible to technically replace a worn or damaged steering rack with another unit of the same specification, without interfering with the steering system design.

The presence of multiple reference numbers increases the chances of matching different production variants within the same generation, which is particularly important for professional service and post-accident repairs.

Condition, verification, and preparation for installation

The item is used, which in practice means it has been removed from a vehicle and verified for further use. This type of part is an attractive cost-effective solution while maintaining the original design and operating parameters, especially in the case of older BMW generations, where the priority is a reasonable repair budget while maintaining correct functionality.

Before installation, a standard workshop procedure is recommended: checking for leaks, inspecting the operation of the rack and pinion, tie rod ends, and properly bleeding the hydraulic system after installation. A correctly installed steering rack ensures consistent operation of the steering system with the power steering pump and other suspension components.

Benefits of using an original BMW steering rack

Using an original steering rack in a BMW E60, E61, E63, and E64 brings a number of practical benefits:

• preservation of factory handling characteristics and power steering assistance,
• secure fitment to mounts and associated body components,
• reduction of the risk of incorrect wheel alignment and geometry,
• easier diagnostics of potential steering system faults in the future.

For workshops and individual users, this means a more predictable repair result and stable vehicle behavior in daily operation.

Expanding your BMW steering system repair

If you are planning a comprehensive repair or upgrade of the steering system area in your BMW and need other components from the same group, such as tie rods, ends, or steering rack housings, check out the available parts in the BMW steering racks and housings category.

Practical service tips

When replacing the steering rack, it is worth paying attention to the condition of other system components – hydraulic hoses, the power steering pump, and body mounts. It is also recommended to perform a full suspension geometry alignment after installation to fully utilize the potential of the newly installed steering rack and achieve even tire wear and predictable vehicle reactions.

For users interested in a broader view of drivetrain component operation and the selection of used components, a guide on gearboxes may be helpful – you can find it in the article Gearbox: manual, automatic or DSG – typical faults and a guide to buying a used gearbox, which discusses the practical aspects of purchasing and diagnosing used drivetrain components.