BMW 1 Series E81 118i N43 Front Right O/S Spring Strut Brake Suspension Axle

BMW 1 Series E81 118i N43 Front Right O/S Spring Strut Brake Suspension Axle is a complete, used solution for the front passenger-side suspension, designed for BMW 1 Series E81 118i models. Combining the shock absorber with the steering knuckle and hub allows for efficient replacement of the suspension load-bearing component, reducing labor time and the risk of mismatch. It is a practical choice for post-accident repairs, suspension regeneration, or restoring factory driving characteristics.

Specifications and technical data

• SKU: 6771554-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 31316771554
• Substitutable numbers: shock absorber, leg, HUB, 31316786018, 6786018, 31316771554, 6771554, 31216765157, 6765157, 31216793924, 6793924, 31216764444, 6764444, 34116854997, 6854997, 34116764641, 6764641, 34116774682, 6774682, 34116773022 34116768186
• Location on the vehicle: Front, Right
• Category: Other Steering & Suspension Parts

Purpose and function in the suspension

The presented component is designed for the front, right side of the vehicle, which is crucial for proper geometry and handling stability. The shock absorber–steering knuckle–hub assembly is responsible for:

• guiding the wheel relative to the body and maintaining the correct driving path,
• damping vibrations caused by road surface irregularities,
• transferring loads from the steering and braking systems to the body,
• ensuring stable wheel mounting and cooperation with the bearing and braking system.

Thanks to the preservation of factory mounting geometry, the front suspension assembly can operate under conditions close to the original after replacement, which facilitates subsequent wheel alignment.

Compatibility and replacement numbers

The part comes from the BMW group and is an OEM component, which means it retains the original design, mounting points, and performance characteristics. The product has a dedicated manufacturer part number and associated interchangeable numbers, which facilitates the selection of the correct component for a specific version of the BMW E81 118i.

The presence of multiple reference numbers allows for matching the element both by OEM number and by numbers used interchangeably within the same design group of the shock absorber, steering knuckle, and hub. This is particularly important when comparing parts from different model years or equipment versions.

Condition, assembly advantages, and application

The element is used, which in practice means a favorable cost-to-functionality ratio while maintaining the original BMW design. This type of shock absorber–steering knuckle–hub assembly is particularly useful when:

• mechanical damage to the right-side suspension has occurred (e.g., hitting a curb, collision),
• a quick replacement of the entire assembly is necessary without disassembling individual sub-components,
• you want to restore factory driving characteristics after previous modifications.

The original design facilitates installation into factory mounting points, which shortens labor time and reduces the risk of fitment issues. After replacement, it is recommended to perform a suspension geometry adjustment to fully utilize the part's potential.

Why choose an original BMW suspension assembly

By using an original BMW suspension element, you gain predictable vehicle behavior, consistency with the factory design, and compatibility with other chassis components. This solution is particularly recommended for cars used daily, where handling stability, even tire wear, and proper cooperation with the braking and steering systems are important.

If you are planning a comprehensive repair or upgrade of the front suspension area in your BMW and need other elements from the same group, such as struts, steering knuckles, or hubs, check the available parts in the Other BMW category.

Technical knowledge and part selection

When working with the chassis and drivetrain, it is worth paying attention to the consistency of component selection – from suspension and brakes to the drivetrain. Helpful guides on diagnostics and selection of drivetrain elements, such as the clutch or dual-mass flywheel, are available in the article Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain.

To compare the characteristics of sports chassis systems with solutions used in standard cars, it is also worth reading the analysis of suspension and brake design in sports models, described in the article Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of the differences in designing elements such as shock absorbers, steering knuckles, and hubs.