BMW 1 Series F40 118i B38C Front Right O/S Suspension Leg Spring Strut Hub

BMW 1 Series F40 118i B38C Front Right O/S Suspension Leg Spring Strut Hub is a complete, original solution designed for the front axle on the passenger side (right side) of the vehicle. The component combines the shock-absorbing strut, spring, and hub, which facilitates servicing and speeds up replacement. By maintaining the factory suspension geometry, it ensures stable handling, predictable vehicle behavior, and proper interaction with safety systems.

Specifications and technical data

• SKU: 6877058
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6877058
• Substitutable numbers: 31306877058, 6877058, 31216876646, 6876646, 31206874443, 6874443, 34116860266, 6860266, 34116799351, 6799351, 31216850420, 6850420, 31216870838, 6870838, 33416852157, 6852157, 31226850415, 6850415, 33416867926, 6867926
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and compatibility for BMW 1 Series F40 118i

The presented component is dedicated to the BMW 1 Series F40 model in the 118i version with the B38C unit and is part of the Suspension replacement kits group. Using a complete strut, spring, and hub assembly allows for maintaining the correct mounting points, camber angle, and suspension performance characteristics intended by the manufacturer.

The placement on the vehicle is the front axle, right side, which is crucial when selecting parts for modern designs where each side may have different characteristics. Proper matching to the specific engine and body version reduces the risk of incorrect installation and subsequent wheel alignment issues.

Assembly structure and function in the suspension system

The suspension strut integrated with the spring and hub is responsible for transferring loads from the wheel to the body, damping unevenness, and maintaining the correct position of the hub relative to the body. Several key functions are combined in one assembly:

• guiding the wheel vertically and horizontally,
• damping vibrations and impacts from the road surface,
• maintaining stable tire contact with the road,
• ensuring proper interaction with the steering and braking systems.

Thanks to this, replacing the complete assembly is particularly beneficial in the event of mechanical damage (e.g., after hitting a curb or a collision), when simultaneously checking and replacing several elements in one area allows for restoring consistent, predictable suspension behavior.

Benefits of using an original used set

The original BMW component retains factory performance parameters, which is especially important in modern models where the suspension is precisely tuned to the vehicle's electronics. A used element from the Suspension replacement kits group allows for significantly lowering repair costs compared to a new part, while maintaining proper structural fitment.

Choosing a complete strut, spring, and hub assembly:

• simplifies the installation process – fewer disassembly and spring compression operations,
• reduces the risk of installation errors,
• facilitates subsequent geometry adjustment,
• allows for faster restoration of full front suspension functionality.

An additional advantage is the presence of interchangeable part numbers, which facilitates verification of compatibility with a specific vehicle configuration based on manufacturer catalogs or specialized service software.

Professional installation and operation

Due to the importance of the element for driving safety, installation by an experienced service center using appropriate tools for handling suspension struts is recommended. After installation, it is necessary to perform a wheel alignment to fully utilize the potential of the set and ensure even tire wear and stable vehicle handling.

Regular inspection of the suspension condition – play, leaks, deformations, and mounts – allows for extending the period of trouble-free operation and maintaining safe driving characteristics of the BMW 1 Series F40 118i in daily use.

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

For a better understanding of how struts, springs, and other components of the shock-absorbing system work, it is worth consulting a technical guide – you will find practical tips in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which discusses the principles of diagnostics and operation of modern suspensions in premium cars.