BMW X3 Series E83 M47N2 2.0d Rear Left N/S Suspension Leg Arm Brake Disc

BMW X3 Series E83 M47N2 2.0d Rear Left N/S Suspension Leg Arm Brake Disc is an original suspension component designed for the rear left side of the vehicle. Thanks to its factory geometry and precise manufacturing, it ensures stable handling, correct wheel alignment, and predictable vehicle behavior in corners. This is a practical solution for BMW users looking for a proven suspension component at an attractive price.

Specifications and technical data

• SKU: 3420501-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3420501
• Substitutable numbers: 33303420501, 3420501, 33303402535, 3402535, 34216765883, 6765883, 34213332217, 3332217, 33303413255, 3413255, 33303405877, 3405877, 34216750161, 6750161, 33207524043, 7524043, 33213428179, 3428179, 33217529913, 7529913
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented item is a part of the suspension system responsible for maintaining the correct position of the wheel on the rear left side. It is responsible for maintaining the geometry specified by the manufacturer, which translates into driving stability, even tire wear, and predictable car reactions during braking and acceleration.

A properly selected suspension leg and arm in the BMW X3 E83 is crucial for:

• maintaining correct wheel alignment and camber,
• reducing unwanted play in the suspension,
• maintaining driving comfort during daily use,
• safely transferring loads from the wheel to the body.

Benefits of using an original BMW component

Using a component from Brand: BMW guarantees a perfect fit to factory mounting points and compliance with the design specifications of the X3 E83 model. The original geometry minimizes the risk of wheel alignment issues and eliminates the need for installation modifications.

The most important advantages of this solution include:

• Compatibility with factory suspension – a component designed to work in a specific model, without the need for adaptation.
• Consistency with vehicle safety systems – proper suspension geometry supports the operation of traction control and electronic stability control systems.
• Ability to use existing mounting points and hardware – this facilitates the mechanic's work and reduces service time.

Installation characteristics and placement

The element is intended for installation in the rear axle area on the left side, in accordance with the Placement on vehicle parameter. Such labeling allows for the unambiguous assignment of the part to the correct side of the vehicle and avoids errors when selecting the component.

The product belongs to the Suspension replacement kits group, which makes it perfect for both individual repairs and broader suspension upgrades involving the replacement of several elements within the same axle.

Condition, origin, and practical application

The part is offered as a used original component, which is a reasonable compromise between repair costs and maintaining factory handling parameters. For many BMW X3 E83 users, this is an effective way to restore proper suspension operation without having to invest in expensive replacements of uncertain origin.

Thanks to markings such as OEM part number and available interchangeable numbers, it is possible to precisely verify compatibility with a specific vehicle version, which reduces the risk of purchasing the wrong element. Additionally, the SKU identifier facilitates order processing and communication with the sales department.

Support with selection and car project development

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

For those who want to better understand the potential of used components in the context of tuning and repairs, we recommend an article describing the practical application of second-hand parts in premium cars – you can find it here: Audi on second-hand parts – tuning and repairs without losing quality.

If you are interested in a broader look at the market for original used components for popular models, our guide may also be helpful: The best used car parts – a guide to the most frequently chosen original parts.