Steering Rack BMW F20 F21 F30 F31 Power Box Gear RM Motor 6863717

Steering Rack BMW F20 F21 F30 F31 Power Box Gear RM Motor with power steering is a key component responsible for precise vehicle handling and stable road performance. This item from the Steering Racks and Housings group has been designed specifically for BMW F-series models, ensuring the correct steering ratio from the steering wheel to the wheels. Thanks to its factory OEM design, the steering rack maintains the original performance parameters of the steering system.

Specifications and technical data

• SKU: rhd-6863717
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6863717
• Substitutable numbers: 32106863717, 6863717, KZ
• Category: Gearboxes, Racks & Pinions

Application and compatibility with BMW models

The described steering rack is intended for popular BMW F-series models: the compact F20 and F21, as well as the F30 and F31 sedan and touring versions. The design was developed for the specific suspension geometry of these generations, which translates into correct steering angles, predictable vehicle reactions, and consistent operation with the factory power steering system.

This component enables professional repair of the steering system following wear or damage to the factory rack, without interfering with the suspension or steering column structure. This solution is particularly beneficial for restoring the vehicle's original driving characteristics.

Construction and technical specifications

The steering rack belongs to the Steering Racks and Housings group, which means it integrates both the motion transmission mechanism and a properly fitted housing that protects the working elements. The applied power steering system (power box gear) provides clear steering assistance during parking maneuvers while maintaining stable resistance at higher speeds.

The factory OEM design guarantees:

• correct steering ratio for F20, F21, F30, F31 models,
• consistent operation with the factory power steering system,
• proper mounting points for the chassis and suspension,
• preservation of the standard BMW driving characteristics.

Benefits of using an original used steering rack

Choosing a used OEM steering rack is a solution that allows you to combine reasonable repair costs with the preservation of original driving characteristics. An element originating from the same BMW model family is structurally matched to the suspension system, which reduces the risk of geometry issues or incorrect power steering operation.

The main advantages of this solution include:

• preservation of the factory steering "feel" characteristic of BMW,
• no need for adapting non-standard mounts or modifying the installation,
• the possibility of professional steering system repair at an optimal budget.

Part selection by numbers and integration with the vehicle system

The steering rack has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection of the correct component for a specific BMW engine version and equipment level. Verifying compatibility by part numbers helps avoid installation problems and ensures correct cooperation with the electronics and power steering system.

Thanks to this, a mechanic or user can consciously match the steering rack to a specific vehicle, minimizing the risk of mismatch and additional service costs.

Expanding BMW steering system repairs

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 housings, check out the available parts in the BMW Steering Racks and Housings category.

In the case of more extensive vehicle service work, it is also worth ensuring the correct operating temperature of the engine unit – this indirectly affects the durability of mechanical components, including the steering system. More practical information on this topic can be found in the article Engine cooling system – overheating, repair, and used radiators, which discusses the importance of efficient cooling for the longevity of components in BMW and other brands.