BMW F20 F21 Rear Axle Suspension Shock Absorber Left Right N/O/S 6862172

BMW F20 F21 Rear Axle Suspension Shock Absorber Left Right N/O/S is an original component from the Shock absorbers and struts group, designed for use on the left and right side of the rear axle. It is a solid solution for BMW users who want to restore proper damping characteristics and handling stability without compromising the factory suspension design.

Specifications and technical data

• SKU: 6862172
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6862172
• Substitutable numbers: 6792515, 52 20 7274541, 52207274541, 7274541
• Location on the vehicle: Rear, Right, Left
• Part type: Shock
• Category: Shocks, Struts & Assemblies

Purpose and function in the suspension

The presented rear shock absorber is designed for operation on the rear axle, on both the left and right sides. It is responsible for controlled damping of body movements, vehicle stabilization during acceleration, braking, and traversing uneven surfaces, as well as maintaining proper tire-to-road contact. Thanks to its fitment for the specific BMW 1 Series F20/F21 generation, this component works in harmony with the factory suspension geometry, allowing for predictable vehicle behavior and consistency with the original handling characteristics.

Construction and mounting fitment

The shock absorber belongs to the Shock absorbers and struts group, meaning it is engineered to handle vertical loads and dampen vibrations generated by spring operation and wheel movement. The construction is prepared for installation in factory mounting points, without the need for modifying load-bearing suspension elements. Placement on the vehicle covers the rear axle on both sides, which facilitates part selection when replacing in pairs. This solution helps maintain suspension symmetry and even component wear, which is significant for driving stability and comfort.

Benefits of using an original BMW shock absorber

Using a factory shock absorber in a BMW F20/F21 provides a number of practical benefits:

• preservation of the damping characteristics intended by the manufacturer,
• consistent operation with other rear suspension components,
• secure fitment to standard mounting points,
• reduced risk of improper vehicle behavior at high speeds or under load. This used condition item is a sensible choice when servicing an older BMW, where the priority is maintaining the factory design at controlled operating costs.

Selection, diagnostics, and operation

When selecting a shock absorber for a BMW F20/F21, it is crucial to verify compatibility with the OEM part number and interchangeable numbers in the technical specification – this helps avoid installation issues and ensures proper cooperation with other suspension components. If you want to better understand the role of shock absorbers in driving safety and their connection to other elements, such as control arms or stabilizers, it is worth checking out the guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. It is a practical addition to your knowledge when planning suspension service work.

An informed choice of a used OEM component

In the case of premium vehicles, such as the BMW 1 Series F20/F21, a used original component often represents a more predictable solution than a cheap replacement with unknown characteristics. A factory shock absorber retains parameters close to the original, which is important for the operation of safety systems and driving comfort. If you are considering whether a new replacement or a used factory component is the better solution for your case, the following article may be helpful: The myth of the perfect new part: why a used factory part is the only sensible choice for older cars?. You will find technical and economic arguments there that will make it easier to make a decision.

Expanding BMW rear suspension service

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