BMW X3 Series E83 3.0d M57N2 Rear Right O/S Suspension Leg Arm Brake Disc

BMW X3 Series E83 3.0d M57N2 Rear Right O/S Suspension Leg Arm Brake Disc is a complete rear suspension component designed for installation on the right side of the rear axle. The set combines key components responsible for power transmission and wheel guidance, ensuring stable handling and predictable vehicle behavior. This solution is particularly beneficial for post-accident repairs or comprehensive suspension component replacement.

Specifications and technical data

• SKU: 3420502-1
• 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

Purpose and function in the suspension system

The presented item belongs to the Suspension replacement kits group and is dedicated to BMW vehicles. It includes components responsible for wheel guidance and torque transmission to the rear right side of the vehicle. By integrating several parts into one assembly, it facilitates servicing, reduces repair time, and minimizes the risk of installation errors.

The vehicle placement, defined as rear – right side, allows for precise matching of the element to the specific position in the suspension. This is particularly important for repairs where maintaining proper geometry and correct axle shaft alignment relative to the steering knuckle and other chassis components is required.

Benefits of using a complete set

Using a complete axle shaft and steering knuckle assembly in the rear right suspension of the BMW E83 provides a number of practical service benefits:

• better consistency of components working together within a single module,
• reduction in the number of separately ordered parts,
• easier diagnostics and installation compared to replacing individual components,
• maintenance of proper wheel alignment and stability under load.

For workshops and users, this means a more predictable repair result and a lower risk of needing to intervene in the suspension system again after a short period of operation.

Product characteristics and fitment

The item comes from the BMW parts group, which helps maintain the factory operating parameters of the chassis. The assembly has been designed to work with the original suspension geometry, ensuring that after proper installation, it is possible to achieve stable vehicle handling, proper drivetrain operation, and correct load distribution on the rear axle.

The product is offered as used, which is a cost-effective solution for economical vehicle repair, especially in the case of extensive damage to the rear suspension area. With proper installation and inspection of the condition of other system components, such a set allows for restoring the correct operation of the rear axle without the need to invest in a full set of new parts.

Installation and maintenance tips

Before installation, it is recommended to thoroughly clean the contact surfaces and verify the condition of the cooperating suspension and drivetrain components. Replacing the axle shaft and steering knuckle assembly on the rear right side is a good time to check bearings, bushings, and mounting elements to avoid subsequent play and irregularities in wheel guidance.

For users who want to better understand how the suspension works and the impact of individual components on driving safety, the following guide article will be helpful: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. It allows you to organize your knowledge regarding diagnostics and prevention within the chassis system.

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