BMW E87 123d N47S Front Right O/S Spring Strut Brake Suspension Axle Leg

The front right shock absorber with spring and brake components for BMW 1 Series E87 123d with N47S engine is a complete suspension strut assembly, prepared for installation on the driver's side, on the outer part of the axle. As an original BMW part, it ensures correct geometry, stability, and predictable cornering behavior. A used suspension assembly allows for an economical yet technically sound repair of the factory running gear without the need for aftermarket replacements.

Specifications and technical data

• SKU: 6771554-10
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6771554
• Substitutable numbers: 31316786018, 6786018, 31216793924, 6793924, 34116776528, 6776528, 34116854999, 6854999, 31316771554, 6771554, 31216764444, 6764444, 34116772018, 6772018, 34116764645, 6764645, BG
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Application and Compatibility

The described suspension strut assembly is intended for the BMW 1 Series E87, specifically the 123d version with the N47S engine, mounted on the front right side of the vehicle. The integration of the shock absorber, spring, steering knuckle mount, and brake components into a single assembly facilitates adherence to factory driving and braking parameters.

By retaining the original BMW construction, the strut works seamlessly with the standard axle geometry, steering system, and factory braking system, which is particularly crucial for the precise handling characteristic of rear-wheel-drive BMW models.

Suspension Assembly Construction

The complete assembly includes a spring strut integrated with a coil spring and mounts for the steering knuckle and brake components. This solution:

• ensures a rigid connection between the wheel and the body while maintaining appropriate suspension flexibility,
• maintains the correct position of the brake disc and caliper relative to the hub,
• facilitates the preservation of the factory kingpin inclination and caster angles.

The original BMW design minimizes the risk of improper fitment, leading to stable high-speed handling and predictable vehicle responses during emergency braking.

Benefits of Using an Original Assembly

Choosing an original BMW suspension assembly over a mix of aftermarket parts helps maintain the consistent performance characteristics of the entire axle. Key advantages include:

• factory fitment to the body and braking system of the specific E87 123d version,
• retention of the manufacturer's specified damping characteristics and spring travel,
• reduced risk of vibrations, pulling to one side, or uneven tire wear after repair,
• easier diagnostics and servicing due to compliance with BMW technical documentation.

A used, complete assembly is a particularly beneficial solution for post-accident repairs or replacing a damaged strut after a significant impact with a curb, where restoring the entire geometry of the right side of the axle is necessary.

Purpose within Suspension Replacement Kits

This component belongs to Suspension Replacement Kits, meaning it is designed as part of a larger system responsible for vehicle handling, bump absorption, and braking force transfer. In practice, when replacing one suspension strut, it is often recommended to concurrently inspect other axle components to ensure uniform operation of the entire system.

If you are planning a comprehensive repair or upgrade of the front axle suspension area in your BMW and require other parts from the same group, such as struts, springs, or complete suspension legs, check the available parts in the BMW Suspension Replacement Kits category.

Condition, Verification, and Part Selection

The offered assembly is a used part, sourced from disassembly, which allows for significant cost reduction in repairs while maintaining original BMW specifications. Prior to installation, a standard workshop inspection is recommended, including an assessment of the shock absorber's seal, spring condition, and mounting points, to confirm its readiness for further operation in the specific vehicle.

For correct part selection, it is advisable to verify compatibility with BMW service documentation and the part numbers assigned to the specific vehicle. If you have doubts about the cost-effectiveness of using original used components in premium vehicles, the article describing the benefits of such solutions may be helpful: Used Mercedes Parts - Original Dismantled Parts.

Summary

The front right suspension strut assembly with brake for BMW E87 123d N47S is a solution for owners who want to restore their vehicle's factory driving and braking characteristics at a reasonable cost. The original BMW design, the completeness of the assembly, and its specific model fitment contribute to efficient repairs and maintaining the brand's characteristic precision handling.