BMW E81 E87 Sachs Rear Left Right N/O/S Shock Absorber Spring Strut 310 984

BMW E81 E87 Sachs Rear Left Right N/O/S Shock Absorber Spring Strut is a component from the Shock absorbers and struts group, designed for operation on the rear axle of the vehicle on either the left or right side. This used component ensures the preservation of factory damping characteristics, which translates into predictable handling and vehicle stability. It is a solution for users looking for a technically matched shock absorber with a proven design.

Specifications and technical data

• SKU: 310984
• Mark: Unbranded
• Condition: Used
• OEM Part Number: 310984
• Substitutable numbers: 310984, Sachs, E90, 310 984, BG
• 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 application on both the left and right sides. This solution facilitates part selection during suspension service – one type of component can handle both sides, which reduces the risk of installation errors and speeds up workshop work.

Placement in the rear of the vehicle means that the shock absorber is responsible for controlling spring deflection, stabilizing the body during acceleration, braking, and driving over uneven surfaces. A properly selected and functional element affects:

• maintaining wheel contact with the road surface,
• reduction of body roll,
• more predictable vehicle behavior in corners.

Technical and functional characteristics

The shock absorber from this offer belongs to the Shock absorbers and struts group, which means it is a component responsible for damping vibrations and controlling suspension movement. The design adapted to the rear axle of the BMW compact series ensures proper cooperation with stock springs and other suspension components.

Key functional features of this type of shock absorber include:

• optimized damping characteristics for daily use,
• stable vehicle behavior during load changes,
• compatibility with factory suspension geometry.

The product comes from the Unbranded segment, which in practice means that it is not offered under the official vehicle manufacturer's logo, but remains technically matched for use in the given model.

Condition, origin, and service application

The offered shock absorber is a used component, which makes it an economical solution while maintaining the functionality required for daily operation. This type of component is often chosen for:

• post-accident repairs,
• suspension service in fleet vehicles,
• restoring the efficiency of a utility vehicle on a reasonable budget.

Thanks to the preservation of the original geometry and mounting points, the shock absorber allows for installation without interfering with the suspension structure, which is important for both safety and the durability of other system components.

Part selection by numbers and technical support

The shock absorber has an assigned OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific vehicle version. In practice, this means the ability to verify compatibility based on service documentation or parts catalogs, without the need to compare dimensions "by eye".

To better understand the role of shock absorbers in the entire suspension system and the relationships between them and control arms and stabilizers, it is worth checking the technical guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. The article helps to assess when replacing a single element is sufficient and when it is worth planning a wider scope of service work.

Complementary elements from the same group

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

Summary of benefits of use

BMW E81 E87 Sachs Rear Left Right N/O/S Shock Absorber Spring Strut is a practical solution for users who want to restore the proper operation of the rear suspension without overstretching their budget. A used, yet technically matched component from the Shock absorbers and struts group allows for maintaining vehicle stability, improving ride comfort, and limiting excessive wear of other drivetrain components. Thanks to the possibility of installation on the left and right side of the rear axle, it is a universal choice for suspension service in this model.