BMW E90 320i Front Right O/S Spring Strut Leg Suspension Brake Caliper 6771724

BMW E90 320i Front Right O/S Spring Strut Leg Suspension Brake Caliper is a complete front suspension strut assembly, designed for the right side of the front axle in the BMW 3 Series E90 model with the N43 engine. It is an original component from the Shock absorbers and struts group, ensuring proper front suspension geometry and stable vehicle handling.

Specifications and technical data

• SKU: 6771724
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 31316771724
• Substitutable numbers: 31316786006, 6786006, 31316771724 31314036114, 6771724, 4036114, 31216793924, 6793924, 31216764444, 6764444, 31216765157, 6765157, 34116854998, 6854998, 34116764643 34116772669, 6772669 6764643, 34116769095, 6769095, 34116776528, 6776528, 34116772018
• Location on the vehicle: Front, Right
• Category: Shocks, Struts & Assemblies

Purpose and function in the suspension system

The presented shock absorber with steering knuckle is designed to operate in the front suspension on the right side, where it is responsible for damping vibrations, maintaining the wheel in the correct position relative to the body, and ensuring stable cornering. Integrating the shock absorber with the steering knuckle makes it easier to maintain factory geometry, which translates into predictable vehicle behavior during braking, acceleration, and high-speed driving.

Thanks to a design that complies with BMW factory standards, this component works in harmony with other front axle suspension parts, minimizing unwanted play and improving steering precision. This is particularly important in BMW-class vehicles, where the chassis is crucial for comfort and safety.

Construction of the shock absorber – steering knuckle assembly

The shock absorber with the steering knuckle forms a rigid, load-bearing assembly that transfers loads from the wheel to the body and works with control arms, the spring, and steering system components. The steering knuckle serves as the mounting point for the wheel hub and brake caliper, while being connected to the shock absorber, which is responsible for controlled damping of suspension movements.

This design solution provides:

• stable wheel handling throughout the entire suspension travel range,
• better control over geometry changes under load,
• consistent operation with the factory braking and steering system.

Benefits of using an original BMW component

Using an original component from the Shock absorbers and struts group allows you to maintain the driving parameters intended by the manufacturer. Proper mounting points, correct stiffness, and fitment with other suspension elements reduce the risk of geometry issues, premature tire wear, or incorrect steering system operation.

Choosing a used, original part is often a cost-effective solution for post-accident repairs or one-sided replacements when you want to maintain consistency with the vehicle's factory design at reasonable service costs.

Professional installation and operation

Due to the importance of this subassembly for safety, installation in a specialized service center is recommended, using appropriate tools for removing and installing the suspension strut. After installation, it is advisable to perform a wheel alignment to fully utilize the potential of the BMW E90 chassis and avoid uneven tire wear.

To ensure long-term, stable operation of the suspension system, it is worth periodically checking the condition of other cooperating elements, such as control arms, stabilizer links, or springs, so that the entire assembly functions consistently and safely.

More about suspension and good service practices

If you want to better understand how the shock absorber with the steering knuckle works with other suspension elements and how to diagnose typical signs of wear, check out our guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. This is a practical source of knowledge for users and mechanics working with BMW, Mercedes, or Audi cars.

Expanding repairs within the BMW front suspension

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, legs, or complete shock absorber assemblies, check out the available parts in the BMW shock absorbers and struts category.

To better assess why used original components for premium cars are currently so frequently chosen for suspension repairs, it is also worth reading our market analysis: Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026. This will allow you to consciously choose a service strategy for your BMW E90.