Spring Strut BMW F20 F21 Rear Axle Shock Absorber Left Right N/O/S 6873727

Spring Strut BMW F20 F21 Rear Axle Shock Absorber Left Right N/O/S is an original component from the Shock absorbers and struts group, designed for the rear axle of BMW F20/F21 series vehicles with the N47N engine. It allows for the restoration of proper suspension performance, improving stability, handling predictability, and ride comfort in both daily and more demanding conditions.

Specifications and technical data

• SKU: 6873727
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6873727
• Substitutable numbers: 33526873727, 6873727, 33526871091, 6871091, 33526791565, 6791565, EM
• Location on the vehicle: Rear, Right, Left
• Category: Shocks, Struts & Assemblies

Purpose and vehicle placement

The presented shock absorber is designed for installation on the rear axle of the vehicle, with the possibility of use on both the right and left sides. This solution simplifies part selection and allows for consistent restoration of suspension characteristics on both sides of the car.

Thanks to its precise fit to the suspension design of the BMW F20/F21 with the N47N unit, the component works with factory mounting points, maintaining the original geometry and operating parameters of the chassis.

Technical and functional characteristics

The shock absorber belongs to the Shock absorbers and struts group, responsible for controlling spring deflection, damping vibrations, and stabilizing the body during acceleration, braking, and traversing uneven surfaces. Properly selected damping characteristics help reduce body roll, improve tire contact with the road surface, and support the operation of safety systems.

The original design ensures:

• consistency with factory BMW suspension settings,
• proper cooperation with other rear axle components,
• stable vehicle behavior at higher speeds and in corners.

Condition of the component and benefits of use

The shock absorber is offered in used condition, which allows for an economical yet technically sound repair of the suspension system. For many BMW F20/F21 users, this is a reasonable compromise between cost and maintaining the manufacturer's original specifications.

The use of this component allows, among other things, for:

• reducing excessive body roll,
• minimizing the "floating" effect of the vehicle's rear,
• more predictable car behavior on uneven surfaces.

Selection, compatibility, and identification parameters

The shock absorber has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific BMW F20/F21 configuration. It is worth verifying the compatibility of these markings with the vehicle documentation or the existing component to ensure that the installed part will be fully compatible.

Information on vehicle placement, brand, and condition is also available in the product specification, allowing for a quick assessment of the part's suitability in the context of a planned repair or replacement of a pair of shock absorbers on the rear axle.

Technical support and educational materials

If you want to better understand the role of shock absorbers in the chassis and the relationships between them and other suspension components, it is worth checking out the guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. You will find practical tips on diagnostics and suspension operation in various car models there.

When planning a seasonal car inspection and assessing the condition of used suspension components, the following material may also be helpful: Winter essential: which used car parts are worth checking and replacing before the frost?, containing checklists and practical tips on preparing the car for more difficult conditions.

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