BMW 1 E87 118d M47N2 Sport Front Left N/S Spring Strut Brake Suspension Leg Hub

BMW 1 E87 118d M47N2 Sport Front Left N/S Spring Strut Brake Suspension Leg Hub is a complete front suspension component designed for the left side, ideal for use on the front axle of a BMW 1 Series E87 with an M47N2 engine. This is a practical solution for users who want to restore correct geometry and handling stability in a single installation, using the original BMW design. By combining the shock absorber with the steering knuckle, you get a consistent, factory-fitted set that facilitates maintenance and reduces repair time.

Specifications and technical data

• SKU: 6771557
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 31316771557
• Substitutable numbers: 31316786019, 6786019, 31316771557, 6771557, 31216793923, 6793923, 31216764443, 6764443, 34116774681, 6774681, 34116768185 34116773021, 6773021, 6768185, 34116854996, 6854996, 34116764629, 6764629
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented element operates in the front suspension area on the left side, responsible for wheel guidance, vibration damping, and maintaining the correct position of the hub relative to the body. Using a complete shock absorber-steering knuckle assembly reduces the risk of installation errors and makes it easier to maintain correct wheel geometry after repair.

The placement on the vehicle is clearly defined as the front, left side, which helps avoid mistakes when selecting parts and is particularly important when working with the suspension system, where symmetry and side compatibility are crucial for driving stability.

Technical characteristics of the suspension set

The shock absorber connected to the steering knuckle forms a functional assembly that transfers loads from the wheel to the body while damping road surface irregularities. This configuration:

• ensures consistent wheel guidance in the vertical and horizontal axes,
• facilitates the maintenance of the correct camber and caster angles,
• reduces unwanted vibrations transmitted to the steering system.

Thanks to the preservation of the original BMW geometry, the steering system retains predictable reactions, and the vehicle handles stably both in city driving and on highways. This is particularly important in rear-wheel-drive cars, where the precision of the front suspension affects the overall feel of the vehicle.

Benefits of using an original BMW component

Choosing a component from the BMW brand means maintaining factory suspension performance parameters without the need for compromises typical of aftermarket replacements. The original design ensures:

• compatibility with factory mounting points in the body and steering system,
• proper cooperation with other front axle suspension components,
• easier diagnostics and future service due to precise fitment.

The product belongs to the Suspension replacement kits group, which promotes comprehensive system maintenance – in one installation, you can restore correct wheel guidance, reduce play, and improve driving comfort.

Component condition and service application

The offered shock absorber with steering knuckle is a used part, making it a reasonable choice for maintenance repairs when the priority is to maintain the original design at optimal costs. This type of component is suitable for both typical wear-and-tear replacement and post-accident repairs, where it is necessary to restore the correct front axle geometry.

Due to the nature of suspension operation, it is recommended to perform a wheel alignment after installation to fully utilize the set's properties and ensure even tire wear and stable vehicle handling.

Comprehensive suspension service and educational materials

If you want to better understand how the shock absorber with steering knuckle works with other suspension elements and how to diagnose signs of wear, check out the advice in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. It is a practical source of knowledge that will help you plan the service of the entire system, not just a single component.

If you are planning a comprehensive repair or upgrade of the suspension zone in your BMW and need other elements from the same group, such as shock absorbers, steering knuckles, or complete struts, check out the available parts in the category BMW suspension replacement kits.