BMW F30 320i N20 Rear Left N/S Suspension Leg Brake Caliper Disc

The BMW F30 320d N47N Wheel Hub Knuckle Caliper Left 184HP is a complete rear suspension component designed for the drive axle, comprising the wheel hub knuckle, wheel hub, and caliper on the left side. This assembly provides a solid foundation for restoring proper geometry, stability, and braking effectiveness in your BMW. Thanks to its factory OEM design, you receive a technically cohesive kit for professional suspension repair, eliminating the need to select individual components.

Specifications and technical data

• SKU: 6792521
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6792521
• Substitutable numbers: 33326792521, 6792521, 34216850857, 6850857, 34216850860, 6850860, 34216792227, 6792227, 33329805657, 9805657
• Weight: 150
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and Function in the Suspension System

The presented kit belongs to the Suspension Replacement Kits category and is dedicated to the rear left side of the vehicle. The wheel hub knuckle is responsible for precise wheel guidance relative to the body, the hub ensures stable rim mounting and cooperation with the bearing, and the brake caliper enables effective transfer of braking force to the disc. Combining these elements into one module simplifies servicing, reduces the risk of incorrect installation, and allows for quicker restoration of proper vehicle handling.

Benefits of Using a Complete Rear Wheel Hub Knuckle Assembly

Using a complete rear wheel hub knuckle assembly with a hub and caliper is particularly beneficial for repairs after collisions, mechanical damage, or intensive use. In a single installation, you restore:

• correct wheel alignment relative to the body and vehicle axis,
• stable hub mounting and cooperation with the braking system,
• cohesion of the load-bearing and braking elements on the left side of the rear axle.

This minimizes the need for multiple disassemblies and adjustments, making the entire service process more predictable. This solution is especially appreciated by workshops aiming for repeatable, technically correct repairs on BMW vehicles.

Installation Characteristics and Compatibility

The component is designed for installation on the rear left side of the vehicle, eliminating any doubt about its placement. The assembly is designed as an OEM part, thus retaining factory mounting points and the geometry intended by the manufacturer. The presence of the OEM part number and available reference numbers (visible in the technical specifications) facilitates verification of compatibility with a specific version of the BMW F30 320d N47N with 184 HP.

Before installation, the standard workshop procedure is recommended: checking the condition of mounting surfaces, threads, control arm and shock absorber mounting points, and verifying cooperation with the existing braking system. This approach allows for full utilization of the kit's potential and ensures stable suspension operation in the long term.

Condition, Origin, and Practical Application

The product comes from the BMW offering and is classified as an element in the Suspension Replacement Kits category, confirming its purpose for comprehensive rear axle repairs. The used condition indicates that the part has been previously operated but is still suitable for further use after proper installation and potential workshop verification. This solution significantly reduces repair costs compared to purchasing new components, while maintaining original construction and fit for the specific model.

This configured assembly is suitable for both post-accident repairs and replacement of worn suspension elements in intensively used vehicles – fleet, company, or private cars, where a reasonable balance between cost and quality is important.

Technical Support, Selection, and Additional Materials

During the selection process, data such as the product identifier , manufacturer designation , OEM part number , and available reference numbersare helpful. Additionally, when planning service logistics, the weight parameterand vehicle placementcan be considered, facilitating installation organization and selection of appropriate tools.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your BMW and need other parts from the same group, such as control arms, bushings, or additional mountings, check the available parts in the BMW Suspension Replacement Kits category.

For users considering the use of used components in premium vehicles, a valuable addition to their knowledge will be an article describing a practical approach to repairs and modifications using second-hand parts – you can find it here: Audi on second-hand parts – tuning and repairs without quality loss.