BMW F20 F21 F30 LCI Front Tension Strut Wishbone Control Arm Left N/S 6855741

The BMW F20 F21 F30 Front Left Suspension Control Arm is an original BMW drivetrain component designed for the front left corner of the vehicle. The precise geometry of the control arm ensures stable vehicle handling, correct wheel alignment, and predictable suspension behavior during braking and cornering.

Specifications and technical data

• SKU: 6855741
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6855741
• Substitutable numbers: 31126855741, 6855741, 311268512659, 6851259, 2467053
• Location on the vehicle: Front, Left
• Category: Steering & Suspension Bushings

Purpose and Function in Suspension

The presented control arm is responsible for maintaining the correct geometry of the front suspension on the driver's side. As a component working in the longitudinal and transverse axes, it transfers loads from the wheel to the body, stabilizing the position of the hub relative to the chassis. A correctly selected control arm limits unwanted play, reduces the risk of the car pulling to the side, and contributes to even tire wear.

Thanks to its dedicated vehicle placement: front – left side, the part is structurally adapted to its specific position in the suspension system, which facilitates installation and allows for the preservation of factory handling parameters.

Benefits of Using an Original BMW Control Arm

Using an original control arm in F20, F21, and F30 series models allows for consistency with the factory handling characteristics for which BMW is renowned. The component's design is optimized for:

• driving stability at higher speeds,
• precision of response to steering inputs,
• proper damping of vibrations transferred from the wheel to the body,
• correct interaction with other suspension system components.

This control arm, from the Bushings, Bearings & Chassis category, is a key element for the proper functioning of metal-rubber bushings and bearings within the front suspension, which translates to driving comfort and safety.

Product Characteristics and Installation

The component is designed for installation in factory mounting points, without the need for modifications to the body structure or steering knuckle. By maintaining the original geometry, precise wheel alignment and angles can be set according to the manufacturer's specifications after replacing the control arm.

Used condition means the part is from a dismantled vehicle and is intended for users seeking an economical solution while retaining the original BMW construction. This type of component is particularly suitable for daily driven cars where a sensible balance between repair cost and maintaining driving characteristics is important.

Practical Application in Service

Replacing the front left control arm is recommended in case of noticeable play in the suspension, knocking when driving over uneven surfaces, problems with maintaining the driving line, or after a collision that has compromised the geometry of the front drivetrain. Choosing an original BMW part minimizes the risk of mismatch and accelerated wear of other components, such as bushings or bearings in the chassis.

Due to its specific vehicle placement, installation in a specialized service center is recommended, followed by a wheel alignment check on a measuring station.

If you are planning a comprehensive repair or upgrade of the chassis area in your BMW and need other parts from the same group, such as bushings, bearings, or additional mounting elements, check the available parts in the BMW Bushings, Bearings & Chassis category.

To better assess when choosing used parts is cost-effective and safe, it is worth reading the guide: Used Parts for BMW – Is It Worth It? Key Benefits for Brand Enthusiasts.