BMW F20 F21 F23 120d 220d Rear Left N/S Leg Suspension Axle Brake Disc Hub Set

BMW F20 F21 F23 120d 220d Rear Left N/S Leg Suspension Axle Brake Disc Hub Set is a complete set of rear suspension components designed for the drive axle on the left side of 1 and 2 Series models. The set combines the steering knuckle and the drive shaft, which facilitates matching and installation in the chassis system. It is a practical solution for users looking for a consistent, factory-spec rear axle system for their BMW.

Specifications and technical data

• SKU: 6792515-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6792515
• Substitutable numbers: 33326792515, 6792515, 33416867261, 6867261, 33208680347, 8680347, 34216850857, 6850857, 34216792227, 6792227, 33207597681, 7597681, 33406792366, 6792366, BG
• Location on the vehicle: Rear, Left
• Category: Other Steering & Suspension Parts

Purpose and vehicle placement

The presented set is designed for the rear left side of the vehicle, which is crucial for the correct suspension geometry and drivetrain operation. The steering knuckle is responsible for wheel guidance and interaction with suspension components and brakes, while the drive shaft transmits torque from the transmission to the wheel. Using a dedicated set for a specific side of the vehicle reduces the risk of incorrect installation and simplifies maintenance.

Technical characteristics of the set

Combining the steering knuckle with the drive shaft into a single assembly allows for maintaining the structural consistency of the rear axle. The components are designed for the specific drive requirements of the 120d and 220d models, which translates into proper load distribution and compatibility with the factory suspension system. The design of the steering knuckle ensures stable mounting of the hub, control arm mounting points, and brake system components, while the drive shaft is adapted to work with the rear differential and wheel hub.

A set configured in this way is particularly useful for repairs following mechanical damage, replacing components after a collision, or restoring correct suspension geometry. Using original BMW architecture promotes predictable vehicle handling and proper interaction with traction control systems.

Benefits of using a used OEM set

The component comes from the BMW group, which means maintaining factory geometry, mounting points, and compatibility with other rear axle sub-assemblies. A used component allows for a significant reduction in repair costs compared to new parts, while maintaining proper fitment for a specific drivetrain version. This solution is particularly beneficial for major suspension repairs, where both price and compliance with the original design are important.

For many users, it is also important that a complete steering knuckle with a drive shaft reduces the need to select individual components and minimizes the risk of problems with drive shaft length or mounting spacing. As a result, the service process is more predictable, and vehicle downtime can be reduced.

Part number selection and integration with other components

The product has a dedicated OEM part number and a set of interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. In practice, this means the possibility of verifying compatibility by catalog numbers or by VIN, which is particularly important for rear axle components, where structural differences between versions can be significant.

If you are planning a comprehensive repair or upgrade of the rear axle area in your BMW and need other components from the same group, such as additional steering knuckles, drive shafts, or mounting brackets, check out the available parts in the Other BMW category.

Technical support and additional information

When selecting suspension and drivetrain components, it is worth considering the differences between engine versions and individual model specifications. A good practice is to compare the design with the removed part and verify it against catalog numbers. If you are interested in a broader context of comparing performance and technical solutions in sports versions of cars, you can read an article discussing the differences in engine, brake, and chassis design: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering whether new, replacement, or used parts are a better choice in your case, a guide describing the differences in costs, quality, and fitment by OEM numbers may be helpful: original, replacement, or used car parts – what to choose?. This will make it easier to assess how to optimally plan the repair of the rear axle in your BMW in terms of technical and budgetary requirements.