Spring Strut BMW F20 F21 N55 F31 M Sport Shock Absorber Front Left N/S 6797899

Spring Strut BMW F20 F21 N55 F31 M Sport Shock Absorber Front Left N/S for the F20, F21, and F31 series is an original suspension component, designed specifically for versions with sporty characteristics. Thanks to its factory-fitment for the front axle on the driver's side, it ensures consistent handling, predictable body response, and proper cooperation with other chassis components. This solution is intended for users who expect precise vehicle behavior while maintaining compliance with BMW's factory specifications.

Specifications and technical data

• SKU: 6797899-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6797899
• Substitutable numbers: 6797899, 37116797899
• Location on the vehicle: Front, Left
• Category: Shocks, Struts & Assemblies

Purpose and BMW compatibility

The offered item belongs to the Shock Absorbers and Struts category and is intended for installation on the front left axle in BMW F-series vehicles with the N55 petrol engine and selected estate versions. The design prepared for the M Sport package guarantees appropriate stiffness and operating characteristics adapted to dynamic driving, without the need for body or mounting modifications.

As an original BMW part, the shock absorber and strut maintain the geometry intended by the manufacturer, which is crucial for stability during braking, cornering, and maintaining proper tire contact with the road surface. This also facilitates subsequent wheel alignment and camber adjustments.

Technical characteristics and role in the suspension system

The front left shock absorber integrated with the strut is responsible for:

• damping vibrations transmitted from road irregularities to the body,
• maintaining a stable wheel position relative to the wheel arch,
• controlling body roll during acceleration, braking, and cornering,
• cooperating with the suspension spring and other steering system components.

The version dedicated to the M Sport configuration has a specifically tuned damping characteristic, which allows for more direct handling while maintaining comfort acceptable for daily use. The vehicle-specific placement reduces the risk of incorrect installation and simplifies part selection during service.

Condition, origin, and benefits of using a pre-owned part

The item comes from a dismantled BMW vehicle and is offered as a used part, which allows for an economical suspension repair while maintaining original build quality. Choosing an original pre-owned shock absorber and strut is often preferred over cheap replacements because it ensures:

• factory fitment to the steering knuckle, hub, and body mounts,
• consistent performance with other suspension components,
• preservation of the handling characteristics intended by BMW.

For workshops and individual users, this means shorter installation time, fewer potential compatibility issues, and easier diagnostics of any future faults.

Practical installation and maintenance tips

When replacing the front left shock absorber and strut, it is recommended to simultaneously check the condition of the spring, strut mount bearing, bump stops, and dust covers. In many cases, it is beneficial to perform the replacement in pairs on the axle to maintain symmetrical damping characteristics and balanced vehicle behavior in corners. After installation, it is necessary to set the suspension geometry, which allows for full utilization of the part's properties and limits tire wear.

For users who want to better understand the impact of shock absorbers on safety and driving comfort, a guide describing the operating principles and symptoms of suspension wear will be helpful – detailed information can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.

Expanding your BMW suspension upgrade

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