BMW G20 G21 Rear Left N/S Suspension Leg Wheel Hub Axle Carrier Brake Disc

BMW G20 G21 Rear Left N/S Suspension Leg Wheel Hub Axle Carrier Brake Disc is a complete component from the Suspension replacement kits category, designed for installation on the rear left side of the vehicle. This solution allows for an efficient, technically correct replacement of the entire wheel carrier assembly, which facilitates the restoration of proper geometry and handling stability in BMW 3 Series G20/G21 cars.

Specifications and technical data

• SKU: 6898479-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6898479
• Substitutable numbers: 6898479, 33306898479, 33208666073, 8666073, 33306878621, 6878621, 34206894081, 6894081, 34216860925, 6860925
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the chassis system

The presented rear left suspension assembly combines key elements responsible for wheel guidance, load bearing, and interaction with the braking system. The vehicle placement defined as rear – left side ensures clear identification for installation, which is crucial for precise rear axle repair in BMW G20 and G21 models.

A kit configured in this way is particularly useful for:

• post-collision repairs in the area of the rear left wheel,
• damage to the steering knuckle or hub resulting from hitting a curb or pothole,
• comprehensive replacement of load-bearing elements as part of suspension service.

Compatibility and BMW OEM standard

The element comes from the BMW range, which means maintaining factory geometry, correct hub offset, and proper cooperation with the stock braking system and suspension. As a result, after installation, you can achieve:

• proper wheel guidance in the vehicle's axis,
• stable vehicle behavior during braking and cornering,
• consistency with factory alignment and camber settings (after adjustment on a measurement stand).

The presence of a dedicated OEM part number and associated replacement numbers (visible in the technical specification) facilitates verification of compatibility with a specific equipment version and model year of the BMW G20/G21.

Performance characteristics and installation advantages

As an element from the Suspension replacement kits category, this rear left suspension assembly with hub and brake disc allows for a reduction in the number of service operations – instead of disassembling and assembling individual sub-assemblies, the mechanic installs a ready-made unit and then performs a geometry adjustment.

The main benefits include:

• preservation of the factory mounting point for wishbones and shock absorbers,
• consistency with the stock rear axle braking system,
• possibility of faster diagnostics and installation compared to replacing scattered components.

Such a solution is particularly beneficial in specialized BMW service centers, where repair repeatability and minimizing vehicle downtime are prioritized.

Condition of the element and practical application

The product is offered as a used OEM element, which in practice means a favorable combination of original BMW construction with an attractive price compared to new components. For many 3 Series G20/G21 users, this is a reasonable choice for accident repairs, suspension renovation, or preparing the car for further operation without excessive budget strain.

A used suspension assembly of this type will work well both in cars used on a daily basis and in fleet vehicles, where predictable vehicle behavior and proper cooperation with safety systems are essential.

Technical support and additional materials

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

For those considering the use of used components in premium class cars, a valuable addition to your knowledge will be an article describing a practical approach to tuning and repairs using second-hand parts – you can find it here: Audi on second-hand parts – tuning and repairs without losing quality. Although it concerns a different brand, it clearly shows how to consciously use used suspension and chassis components.