BMW F20 F21 LCI Spring Strut Shock Absorber Rear Left Right N/O/S 7542278

Description

BMW F20 F21 Rear Shock Absorber Right Left Rear 6873724 is an original part from the Shock Absorbers and Struts group, designed for the rear axle on the right or left side. Designed by BMW, it ensures consistent suspension behavior, predictable damping characteristics, and stable vehicle handling in everyday use.

Specifications and technical data

• SKU: 6791586
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6873724
• Substitutable numbers: 33526873724, 6873724, 33526863752, 33526860740, 33526791586, 6863752, 6860740, 6791586
• Location on the vehicle: Rear, Right, Left
• Category: Shocks, Struts & Assemblies

Purpose and Function in Suspension

The presented shock absorber is responsible for controlling spring compression and damping vibrations transmitted from the road surface to the body. Its placement on the rear axle, with the possibility of mounting on either the right or left side, allows for flexible application depending on the suspension configuration of a given BMW F20/F21 model.

Thanks to its factory damping characteristics, the shock absorber supports driving stability, reduces body roll, and improves wheel grip during braking and acceleration. A properly selected component from this group directly impacts safety, comfort, and predictable cornering behavior of the vehicle.

Benefits of Using an Original BMW Shock Absorber

Using an original BMW component in the rear suspension area allows for maintaining the factory tuning of the drivetrain. This means:

• consistent, predictable vehicle behavior under changes in load and speed,
• proper interaction with other suspension components,
• maintaining the correct geometry and operation of the rear axle wheels,
• reduction of excessive vibrations and noise in the cabin.

For the user, this translates to stable handling, better vehicle control, and a more comfortable ride over uneven surfaces. Choosing a component from the same design group as the factory-fitted one minimizes the risk of undesirable changes in suspension characteristics.

Mounting Characteristics and Fitment

The shock absorber has been developed for direct installation in the dedicated mounting points of the BMW F20/F21 rear axle. Appropriate dimensions and mounting geometry ensure proper fitment with the body and other suspension components, without the need for vehicle modifications.

Its placement on the vehicle, covering the rear on the right or left side, facilitates part selection during rear axle service – it is possible to use the same type of component on both sides, which promotes suspension symmetry. Correct fitment of the shock absorber to a specific BMW model reduces the risk of improper installation and accelerated wear of other components.

Condition and Service Application

The part is offered in used condition, making it an attractive solution for vehicle servicing when cost optimization while maintaining original construction is a priority. This type of component can be used both as a replacement for a damaged shock absorber and as part of a broader rear suspension service when multiple elements need replacement simultaneously.

By retaining its factory specifications, the product fits well with the needs of users seeking original BMW solutions for their suspension, without having to resort to unverified aftermarket parts with different operating characteristics.

Suspension Service Expansion and Educational Materials

If you are planning a comprehensive repair or upgrade of the suspension area in your BMW and need other parts from the same group, such as additional rear or front shock absorbers, or complete struts, check the available parts in the BMW Shock Absorbers and Struts category.

To better understand the role of shock absorbers in the drivetrain and their relationship with control arms and stabilizers, it is worth consulting practical technical materials. The article Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers, which discusses the principles of diagnostics and operation of key suspension components in popular car models, will be helpful.

Additional tips on planning vehicle service and selecting the most frequently replaced components can be found in the guide TOP 10 Most Frequently Replaced Parts in Your Car, which contains practical information for drivers who care about their car’s technical condition.