BMW 3 Series E90 320d ed N47N Rear Right O/S Spring Strut Leg Brake Suspension

BMW 3 Series E90 320d ed N47N Rear Right O/S Spring Strut Leg Brake Suspension is a complete, used rear right steering knuckle with a half-shaft, designed for the rear axle of BMW 3 Series E91 LCI models with the N47 engine. This component is a key part of the suspension system, responsible for stable wheel guidance, power transmission, and correct suspension geometry. By maintaining the original BMW design, the part ensures precise fitment and proper operation with the factory suspension.

Specifications and technical data

• SKU: 6783654
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6783654
• Substitutable numbers: 33326783654, 6783654, 33217547076, 7547076, 34216768698, 6768698, 34216855007, 6855007, 34216764651, 6764651, 33217533446, 7533446
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented half-shaft with steering knuckle is a component of the rear right suspension corner, responsible for connecting the wheel hub to the drivetrain and suspension arms. This assembly transmits torque to the wheel, maintains the correct position of the hub relative to the body, and works with other rear axle components, influencing vehicle stability during acceleration, braking, and cornering.

As part of the Suspension replacement kits category, the product allows for the simultaneous replacement of several related components in one area, which facilitates the restoration of correct geometry and reduces the risk of uneven wear on other components.

Benefits of using an original steering knuckle with half-shaft

Using a complete rear right steering knuckle assembly with a half-shaft in a BMW E91 LCI 318d N47 provides a number of practical service and operational benefits:

• factory mounting geometry, which facilitates wheel alignment and camber adjustment,
• preservation of the original handling characteristics typical of the BMW 3 Series,
• reduction of workshop operations by replacing the complete assembly instead of individual components,
• consistent cooperation with the factory suspension and drivetrain.

For the user, this means more predictable vehicle behavior, stable handling at higher speeds, and safer torque transmission to the rear wheels.

Selection and compatibility with the BMW E91 LCI 318d N47

The element has been designed for a specific variant of the BMW 3 Series E91 LCI with the 143 HP N47 unit, which minimizes the risk of installation and fitment issues. The correct placement on the vehicle (rear, right side) allows the mechanic to clearly identify the mounting position and avoid mistakes when gathering parts for rear axle repairs.

During the selection process, it is worth paying attention to compatibility with the suspension and drivetrain system of the specific vehicle. The product has assigned part numbers and interchangeable numbers, which facilitates compatibility verification in BMW catalogs and parts selection systems.

Condition, origin, and service application

The steering knuckle with half-shaft is a used part, sourced from dismantling, which is a cost-effective solution while maintaining the original BMW design. Such components are commonly used in professional workshops for post-accident repairs, suspension regeneration, and when replacing elements after mechanical damage or corrosion.

Replacing the complete rear right steering knuckle assembly with a half-shaft is particularly recommended in situations where several elements have been damaged simultaneously (e.g., after hitting a curb, a collision, or bearing and joint failure), as it allows for consistent reconstruction of the suspension corner and reduces vehicle downtime.

Expanding BMW suspension upgrades

If you are planning a comprehensive repair or upgrade of the rear suspension area in your BMW and need other elements from the same group, such as control arms, bushings, or additional mounts, check the available parts in the BMW suspension replacement kits category.

To maximize the potential of used suspension elements and other dismantled components, it is worth learning the principles of their proper operation and maintenance – you will find practical tips in the article How to extend the life of used car parts?.

Additional information about the differences between standard and sports suspension, and when it pays off to reach for used suspension components, is provided in the guide Standard vs. sports suspension – design differences and is it worth buying used suspension parts?, which can help in consciously planning further modifications to your BMW.