BMW E81 E87 LCI E90 M Sport Front Stabilizer Anti Roll Sway Bar 6771339

BMW E81 E87 LCI E90 M Sport Front Stabilizer Anti Roll Sway Bar is an original suspension component designed for the front axle, specifically engineered for M Sport package versions. Thanks to its factory-set geometry and performance characteristics, the stabilizer ensures more precise handling, reduces body roll, and improves vehicle stability during dynamic driving. This is a particularly attractive solution for drivers seeking a sportier suspension response while maintaining the original BMW design.

Specifications and technical data

• SKU: 6771339
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6771339
• Substitutable numbers: 31356793190, 6793190, 31356771339, 6771339
• Location on the vehicle: Front
• Category: Other Steering & Suspension Parts

Purpose and function of the M Sport front stabilizer

The presented stabilizer is a suspension component mounted on the front axle, responsible for limiting lateral body roll when cornering. In M Sport versions, its characteristics are tuned for a more decisive, sporty response, which translates into:

• better tracking at higher speeds in corners,
• more direct feedback from the front axle,
• more stable vehicle behavior during sudden maneuvers.

As a result, the BMW suspension system gains a significantly more dynamic character while remaining predictable and consistent with the manufacturer's driving philosophy.

Benefits of using the M Sport stabilizer

Using an M Sport stabilizer in the BMW 1 Series E81/E87 LCI and 3 Series E90 allows for a noticeably sportier driving experience without the need for structural modifications to the body. Key advantages include:

• Improved lateral stiffness – reduced body roll increases driving confidence.
• Better compatibility with standard shock absorbers and springs in M Sport versions,
• retention of factory mounting points and suspension geometry,
• the ability to utilize original BMW solutions without the need for aftermarket, non-original components.

For the user, this means more precise handling, better vehicle control, and consistent performance of the entire chassis system.

Installation characteristics and fitment

The M Sport front stabilizer has been designed as a component dedicated to specific BMW models, which facilitates installation and reduces the risk of compatibility issues. In practice, this means:

• use of standard mounting points on the front suspension,
• no need for modifications to the body structure or subframes,
• compatibility with factory stabilizer links and mounts.

Consequently, the stabilizer replacement can be carried out in an orderly manner, in accordance with BMW service procedures, which is beneficial for both workshops and users who prioritize technical repair accuracy.

Component condition and practical application

The offered stabilizer is an original BMW part from the used components category, allowing you to combine an attractive purchase cost with the preservation of the factory design. This type of component is particularly useful in situations where:

• it is necessary to replace a damaged stabilizer after a collision or due to wear and tear,
• the user wants to upgrade the car with a solution featuring characteristics similar to the M Sport version,
• maintaining the original BMW suspension specification is essential.

Selecting a stabilizer that matches the manufacturer's markings allows you to maintain consistent suspension performance and avoid unwanted changes in vehicle handling.

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 stabilizers, links, or mounts, check the available parts in the Other BMW category.

To better understand the differences in the construction of sports versions of cars and the impact of elements such as stabilizers, shock absorbers, or chassis reinforcements on vehicle handling, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers use chassis components to build a car's character.

If you want to make informed choices when selecting used suspension components and avoid fitment problems, the guide No more bad purchases! How to professionally select used car parts may be helpful, where you will find practical tips on verifying OEM markings and assessing part compatibility with your BMW.