BMW 1 3 Series E81 E87 LCI E90 E91 Power Steering Rack Boxes Electric 6872479

BMW 1 3 Series E81 E87 LCI E90 E91 Power Steering Rack Boxes Electric is an original BMW steering system component, designed for 1 and 3 Series models with electric power steering. Thanks to its factory design, it ensures precise handling, compatibility with the vehicle's electronics, and proper operation of steering assistance and stability control systems.

Specifications and technical data

• SKU: rhd-6872479
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6872479
• Substitutable numbers: 32106793458, 6793458, 32106788746, 32106792946, 6788746, 6792946, 32106872479, 6872479, 6794006, 32106785290, 6785290, 32106783128, 6783128, 32106784746, 6784746, 32106782204, 6782204, 32106779076, 6779076, 32106862854, 6862854, 32104087308, 4087308, 32102299543, 2299543
• Category: Gearboxes, Racks & Pinions

Purpose and compatibility

The presented steering rack is dedicated to selected versions of the BMW 1 Series E81/E87 LCI and 3 Series E90/E91 with electric power steering. Using the original BMW OE design allows for maintaining the factory operating parameters of the steering system, including steering assist characteristics, steering response, and integration with safety systems.

Due to the presence of the OEM part number and assigned interchangeable numbers, the component can be precisely matched to the specific vehicle configuration, which minimizes the risk of installation and software issues.

Construction and function of the steering rack

The steering rack belongs to the Steering Racks and Boxes category and serves as the central element of the system responsible for transferring movement from the steering wheel to the front wheels. The integrated mechanism works with the electric power steering, ensuring smooth, predictable vehicle reactions both during maneuvering and when driving at higher speeds.

The factory geometry and steering ratio guarantee proper steering feel, driving stability, and correct cooperation with the suspension and ABS/ESP systems. Properly selected mounting points facilitate installation in original locations without the need for structural modifications.

Benefits of using an original BMW steering rack

• Compatibility with vehicle electronics – the steering rack is designed to work with factory BMW controllers and sensors, which limits the risk of errors in onboard systems.
• Stable, predictable handling – maintaining the original ratio and steering assist characteristics improves driving comfort and safety.
• Proper mounting fit – original mounting points and a design consistent with the E81/E87 LCI and E90/E91 body styles facilitate installation.
• Ability to use existing wiring and accessories – no need to adapt non-standard solutions.

Condition of the component and installation recommendations

The steering rack is offered as a used part, which allows for an economical repair of the steering system while maintaining original BMW build quality. Before installation, it is recommended to perform a standard check of tightness, mechanical play, and the condition of the boots, as well as to use new mounting hardware in accordance with the manufacturer's service procedures.

After installation, it may be necessary to perform an adaptation or calibration of the steering system using appropriate diagnostic software to ensure proper cooperation with the steering assistance and stability control systems.

Expansion of the BMW steering system

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 the available parts in the BMW Steering Racks and Boxes category.

For a comparison of design solutions used in other brands and a better understanding of the impact of chassis and steering components on vehicle handling, it is worth reading the article on the evolution of sports compacts – Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8, where the importance of properly selected used parts for upgrades is discussed, among other things.