BMW X3 Series E83 2.0d M47N2 Rear Right O/S Suspension Leg Arm Brake Disc

BMW X3 Series E83 2.0d M47N2 Rear Right O/S Suspension Leg Arm Brake Disc is a complete rear suspension component designed for the drive axle on the right side. The set comes from the original BMW line, which ensures proper geometry, appropriate stiffness, and predictable vehicle behavior while driving. It is a practical solution for users who want to restore the correct operation of the suspension without experimenting with aftermarket replacements.

Specifications and technical data

• SKU: 3420502-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3420502
• Substitutable numbers: 33303420502, 3420502, 33303402536, 3402536, 34216765884, 6765884, 33207537608, 7537608, 33217540116, 7540116, 34213332217, 3332217, 33303413256, 3413256, 33303405878, 3405878, 34216750162, 6750162
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Technical characteristics and intended use

The presented set belongs to the Suspension replacement kits group and is dedicated to the rear, right side of the vehicle. Combining the steering knuckle with the control arm in one set makes it easier to maintain proper wheel geometry, minimizes the risk of installation errors, and reduces service time. The element is configured for the specifics of the 2.0d M47N2 diesel unit in the BMW X3 E83 model, which translates into appropriate durability under the typical loads of this powertrain version.

Set construction and impact on handling

Integrating the steering knuckle with the control arm into one module allows for maintaining factory mounting points and correct wheel camber and toe angles. Thanks to this:

• the suspension system works stably across the full range of deflection,
• excessive tire wear resulting from incorrect geometry is limited,
• the rear axle maintains predictable stiffness during braking and acceleration.

An element configured in this way is particularly important in all-wheel-drive vehicles, where the precision of the rear axle handling affects the operation of the entire xDrive system and electronic stability control systems.

Benefits of using an original suspension set

Using a complete suspension set in the form of a steering knuckle with a control arm allows for reducing the number of variables during repair. The mechanic receives a coherent module that:

• facilitates installation thanks to factory mounting points,
• ensures compatibility with standard accompanying components (hub, bearing, braking system),
• allows for faster restoration of the vehicle's original driving characteristics.

For the user, this means more confident handling, better stability at higher speeds, and a reduction in unwanted vibrations and play in the rear suspension. In the case of BMW X3 E83 class cars, this has a direct impact on driving comfort and safety in daily use.

Choosing a used suspension set and practical aspects

The item comes from a group of used parts, which allows for optimizing repair costs while maintaining the original design. In practice, this is a beneficial solution for drivers who expect factory fitment and predictable suspension operation, while simultaneously wanting to avoid the expenses associated with new components. It is worth verifying the condition of cooperating elements, such as bushings or links, before installation to fully utilize the potential of the set.

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

Technical support and knowledge about suspension

When selecting elements for the BMW X3 E83, it is worth considering the differences between the standard configuration and potential sports modifications. A detailed discussion of the design, operating parameters, and principles of selecting used components can be found in the article Standard vs. sports suspension – differences in construction and is it worth buying used suspension parts?, which helps to consciously plan the repair or modernization of the chassis system.

If you are considering whether a new replacement or an original element from the secondary market is a better choice in your case, the comparison described in the material New or used? A comparison of costs and quality of car parts, where practical differences in durability, cost-effectiveness, and fitment of parts are presented, may also be helpful.

Summary

BMW X3 Series E83 2.0d M47N2 Rear Right O/S Suspension Leg Arm Brake Disc is a functional, complete rear suspension module for the right side, designed to maintain factory geometry and handling characteristics. Choosing this solution allows you to restore the efficiency of the rear axle in an organized manner, reduce repair time, and maintain the proper balance between comfort, stability, and vehicle operating costs.