BMW 1 Series F20 120dX B47 xDrive Front Right O/S Leg Spring Strut Hub Caliper

BMW 1 Series F20 120dX B47 xDrive Front Right O/S Leg Spring Strut Hub Caliper is a complete front axle service solution, designed for precise steering and suspension performance. This component comes from the original BMW line, ensuring correct geometry, handling stability, and compliance with the factory design specifications of the xDrive drivetrain.

Specifications and technical data

• SKU: 6873726
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6873726
• Substitutable numbers: 31316873726, 6873726, 31216853820, 6853820, 34116850650, 6850650, 34116792217, 6792217, 31316791544, 6791544
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Intended use and kit configuration

The presented item is a complete suspension strut integrated with the shock absorber leg, steering knuckle, and brake caliper, designed for the front right side of the BMW 1 Series F20 in the 120d xDrive version. The kit is configured for the specific front axle loads of all-wheel-drive vehicles, which is crucial for the proper operation of the steering system and traction.

Thanks to the factory design, the correct position of the hub, wishbone mounting points, and brake caliper is maintained, which facilitates wheel alignment and minimizes the risk of uneven tire wear.

Construction and function of individual components

The kit includes a spring-strut assembly, which is responsible for damping vibrations and maintaining constant contact between the wheel and the road surface, a steering knuckle as a load-bearing component of the steering system, and a brake caliper working with the disc and pads. This combination creates a cohesive module that:

• stabilizes the vehicle body during braking and acceleration,
• ensures precise handling in corners,
• maintains correct front axle geometry under road conditions typical for the xDrive drivetrain.

The original BMW design allows for the retention of factory mounting points, which is essential when replacing parts after a collision or during major suspension repairs.

Benefits of using a complete kit

Using a complete kit for the front right side limits the need to select individual components and reduces the risk of incompatibility between parts. In practice, this means:

• easier installation due to the preserved factory configuration,
• consistent suspension and brake system performance after repair,
• better repeatability of geometry settings compared to mixing parts from different manufacturers.

For the user, this translates into more stable handling, predictable vehicle reactions, and more even wear of tires and brake components.

Condition, origin, and fitment

The item comes from the original BMW line and is offered as a used part, which allows for a significant reduction in repair costs while maintaining proper build quality. The kit is intended for installation in a specific model variant, so it is worth verifying compatibility with the vehicle's equipment, particularly the engine version and xDrive drivetrain, before purchasing.

If you want to better understand the structural differences between standard and sports suspension and make informed choices when selecting used chassis components, read the article Standard vs. sports suspension – design differences and choosing used parts, where you will find practical tables, examples, and answers to frequently asked questions.

Application in service and suspension system upgrades

The BMW 1 Series F20 120dX B47 xDrive Front Right O/S Leg Spring Strut Hub Caliper is suitable for both post-accident repairs and comprehensive renovation of the chassis in the BMW 1 Series F20 120d xDrive. Thanks to the preserved factory design, it can be used as a replacement for damaged components without interfering with the suspension design.

If you are planning a comprehensive repair or upgrade of the front axle suspension area in your BMW and need other components from the same group, such as additional struts, springs, or knuckles, check out the available parts in the BMW suspension replacement kits category.