BMW 1 3 F20 F21 F30 F31 N47N B47 Power Steering Rack Box Gear Diesel 6874857

BMW 1 3 F20 F21 F30 F31 N47N B47 steering rack is a component from the Steering Racks and Housings category, designed for diesel engine models. A used, original steering rack ensures proper transfer of steering wheel movement to the wheels, resulting in predictable handling and stable vehicle behavior. This is a practical solution for drivers seeking a factory fit for the steering system of BMW 1 and 3 Series cars.

Specifications and technical data

• SKU: rhd-6874859
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6874859
• Substitutable numbers: 32106874859, 6874859, 32106874857, 6874857, BG, 51127384465, 7384465, 51127256923, 7256923
• Fuel type: Diesel
• Category: Gearboxes, Racks & Pinions

Intended Use and Compatibility with Diesel Engines

The presented steering rack has been designed to work with Diesel engines from the N47N and B47 families in BMW F20, F21, F30, and F31 models. This means it is adapted to the front axle load characteristics of diesel versions, as well as compatible with factory mounting points and suspension geometry. Consequently, the steering system maintains the parameters intended by the manufacturer, without the need for structural modifications.

Construction and Function of the Steering Rack

The steering rack in this model is responsible for precisely transferring movement from the steering column to the front wheel knuckles. This component works with the power steering system, providing appropriately calibrated assistance force and linear response to steering wheel input. The housing design is adapted for operation within the engine bay of BMW vehicles, considering the installation space and protection against road debris.

By maintaining the original geometry, the steering rack helps to preserve correct wheel alignment and driving stability, which is particularly important in rear-wheel-drive cars. A properly selected component from this category reduces tire wear and improves vehicle predictability during braking and at higher speeds.

Benefits of Using an Original BMW Steering Rack

Choosing a used, original steering rack for BMW F20, F21, F30, and F31 models allows for maintaining the integrity of the entire drivetrain. A component originating from the same model family:

• maintains the factory steering ratio,
• is compatible with the vehicle's standard power steering and electronics,
• minimizes the risk of installation issues due to dimensional accuracy,
• allows for retaining the characteristic BMW driving feel.

For users expecting predictable vehicle behavior and consistency with other suspension components, using such a steering rack is a technically sound and economically beneficial solution.

Condition, Origin, and Installation Aspects

The offered steering rack is a used part obtained from disassembly, which helps reduce repair costs compared to new components while maintaining the factory design. Before installation, a standard check of seals, play, and boot condition is recommended, in accordance with procedures used in steering system service centers.

Due to the specific nature of the steering system, installation should be performed by a workshop experienced with BMW F-Series models. After installation, wheel alignment is necessary, and if required, the power steering system should be adapted according to the vehicle manufacturer's recommendations.

Steering Rack Selection and Additional Technical Information

Before purchasing, it is advisable to compare the steering rack's markings with your vehicle's data, using information such as the OEM part number, interchangeable numbers, or SKU, which are detailed in the product's technical specifications. This facilitates selecting the correct variant for a specific body style and engine, and also reduces the risk of installation incompatibility.

If you need other components related to the steering system for your car of this brand, check the available parts in the BMW Steering Racks and Housings category.

For drivers interested in a broader perspective on the cost-effectiveness of using disassembled components in premium cars, it is worth reading an article describing the advantages of original used Mercedes parts: used Mercedes parts – original parts from disassembly.