BMW F20 F21 125i N20 Rear Left N/S Leg Suspension Axle Brake Disc Hub Set

BMW F20 F21 125i N20 Rear Left N/S Leg Suspension Axle Brake Disc Hub Set is a practical solution for workshops and users looking for a well-matched, original component from dismantling. The set includes key elements of the rear suspension and braking system on the driver's side, which facilitates efficient replacement after a collision, due to operational wear, or during chassis upgrades. Thanks to this, you can restore the correct geometry, stability, and braking efficiency of the rear axle in a single installation.

Specifications and technical data

• SKU: 6792515-13
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6792515
• Substitutable numbers: 33326792515, 6792515, 34216850857, 6850857, 33207622853, 7622853, 34216792227, 6792227, BG
• Weight: 150
• Location on the vehicle: Rear, Left
• Category: Other Steering & Suspension Parts

Purpose and configuration of the set

The presented BMW F20 F21 125i N20 Rear Left N/S Leg Suspension Axle Brake Disc Hub Set is designed for installation on the rear axle on the left side. In one package, you receive the elements responsible for wheel guidance, load transfer, and cooperation with the braking system, which significantly simplifies part selection and reduces the risk of incompatibility between individual components.

This type of solution is particularly useful for post-accident repairs or when replacing worn components, especially when you want to maintain the factory handling characteristics and suspension performance in a BMW with an N20 engine.

Benefits of using the complete rear left set

Using a complete rear suspension, axle, brake disc, and hub set brings a number of practical advantages:

• consistency of elements – components come from a single system, which helps maintain proper geometry and mechanical cooperation,
• reduced repair time – the mechanic does not have to assemble individual parts, which speeds up the service process,
• easier diagnostics – replacing the entire assembly eliminates many potential sources of play, noise, or uneven tire wear,
• maintaining the handling characteristics typical of the BMW 1 Series – stability at higher speeds and predictable behavior in corners.

Additionally, the original BMW origin ensures precise fitment to the F20/F21 body, without the need for modifications or assembly compromises.

Technical characteristics and installation

The set is prepared for operation on the rear axle on the left side, which is important for maintaining correct geometry and cooperation with other suspension elements. The specific weight of the assembly affects the load distribution within the rear part of the vehicle, which is why using the correct component is essential for stability during braking and driving over bumps.

During installation, it is recommended to:

• check the mounting points on the body and rear subframe for any potential deformations,
• inspect the condition of other cooperating elements (shock absorber, spring, control arms, brake line),
• perform a measurement and adjustment of the rear axle geometry after completing the work.

This approach allows you to fully utilize the potential of the set and ensure even tire wear as well as predictable vehicle behavior in daily use.

Condition, origin, and compatibility

The offered component is a used original BMW element, sourced from dismantling. Such parts are frequently chosen by workshops and informed users because they allow for maintaining the vehicle's factory specifications at reasonable repair costs. The set has an assigned manufacturer part number and interchangeable numbers, which facilitates verifying compatibility with a specific version of the BMW F20/F21 125i N20.

Before purchasing, it is worth comparing your car's configuration (body version, engine type, production year) with catalog data to ensure that the selected set will be suitable for your specific vehicle.

Technical support, categories, and additional materials

If you are planning a comprehensive repair or upgrade of the chassis area in your BMW and need other elements from the same group, such as additional control arms, hubs, or brake discs, check the available parts in the Other BMW category.

To better understand the differences in the construction of sports drivetrains and chassis in premium cars and to consciously select suspension and brake components, it is worth reading the article on our blog: Audi RS vs other models – what is hidden under the hood and chassis?. You will find practical information there about how manufacturers design more powerful versions of models and how this translates into the selection of spare parts.