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

BMW E83 X3 2.0d M47N2 Suspension Knuckle Control Arm is a complete rear suspension component, designed for left-side mounting on the rear axle. This solution allows for a cohesive replacement of key suspension components, ensuring more predictable handling, stability, and correct wheel geometry in your BMW X3.

Specifications and technical data

• SKU: 3420501-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3420501
• Substitutable numbers: 33303420501, 3420501, 33303402535, 3402535, 34216765883, 6765883, 33207537607, 7537607, 33217540115, 7540115, 34213332217, 3332217, 33303413255, 3413255, 33303405877, 3405877, 34216750161, 6750161
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Intended Use and Fitment for BMW X3 E83 2.0d M47N2

The presented set from the Suspension Replacement Kits category has been specifically prepared for the BMW X3 E83 model with the 2.0d M47N2 engine. It includes components responsible for wheel guidance and load transfer on the rear axle, on the left side. This allows for the restoration of proper suspension operation in the area most prone to wear and tear during a single service operation.

The placement on the vehicle specified as rear – left side allows the mechanic or user to unambiguously identify the mounting location, which reduces the risk of errors in part selection and speeds up the repair process.

Key Functions of the Knuckle and Control Arm in Rear Suspension

The set includes components responsible for:

• guiding the wheel in the vertical and horizontal axes,
• maintaining stable suspension geometry during driving,
• transferring forces from the body to the wheel and vice versa,
• interacting with other suspension components, such as springs and shock absorbers.

Thanks to this set, it is possible to reduce play in the suspension, improve steering precision, and achieve more even tire wear. Cohesive replacement of the knuckle and control arm in one suspension area is particularly beneficial for vehicles used intensively or after accident repairs.

Benefits of Using an Original BMW Part

The product comes from the BMW line, which means it retains the factory geometry, mounting points, and suspension characteristics intended by the vehicle manufacturer. In practice, this translates to:

• precise fit to the body and other drivetrain components,
• no need for modifications or adapter fittings,
• easier adjustment of toe and camber angles after installation.

The part is offered in a Used condition, allowing for economical repair while maintaining the original BMW structural specification. This solution is often chosen by workshops specializing in the brand and by discerning users who want to preserve the factory driving characteristics of their car.

Professional Selection by OEM and Interchangeable Numbers

For precise fitment to a specific BMW X3 E83 version, you can use both the OEM part number and available interchangeable numbers. This method of identification is particularly useful when comparing parts from disassembly, manufacturer catalogs, and service documentation, minimizing the risk of installing an incorrect component.

If you want to better understand the role of control arms and other suspension components in the context of driving safety and comfort, it is worth referring to the guide: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This will help you better plan the scope of service work on your car.

Practical Installation and Operational Tips

When replacing components such as the knuckle and control arm on the rear axle, it is recommended to:

• check the condition of other suspension components in the same area,
• use the correct tightening torques in accordance with BMW service documentation,
• perform wheel alignment after installation is complete,
• check for play and any noises during a test drive.

For users who regularly purchase used parts, a guide describing good online purchasing practices may be helpful: Safe Online Purchase of Used Car Parts – A Step-by-Step Guide. Here you will find practical tips on verifying sellers, interpreting markings, and selecting parts by number.

Repair Extension – Other BMW Suspension Kits

If you are planning a more extensive rear suspension service for your BMW X3 or another model of this brand and want to replace more wheel guidance components in one go, it is worth considering other kits covering drivetrain components. In such cases, to select compatible solutions and maintain structural consistency, check the available parts in the BMW Suspension Replacement Kits category.