BMW F30 F31 320i N20 Rear Left N/S Suspension Leg Brake Caliper 6792523

BMW F30 320i N20 Rear Left Brake Caliper Suspension Knuckle is a complete, used rear suspension component designed for the left-hand drive axle. The kit combines key brake and suspension system components, facilitating a consistent, technically correct repair of the rear chassis of your BMW.

Specifications and technical data

• SKU: 6792523-6
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6792523
• Substitutable numbers: 33326792523, 6792523, 34216850857, 6850857, 33208680351, 8680351, 34216864900, 6864900, 34216792229, 6792229, 33207597677, 7597677, BG
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Vehicle Application and Function

The presented kit includes the rear left brake caliper integrated with the suspension knuckle, allowing for simultaneous operation of the braking system and wheel guidance. The component operates in the rear axle area, responsible for:

• stable guidance of the hub and wheel relative to the control arms,
• transferring loads from the suspension to the body,
• providing a proper mounting point for the brake caliper,
• maintaining the correct geometry of the rear axle on the left side.

Thanks to this design, the kit is particularly useful for repairs after mechanical damage, collisions, or significant wear of load-bearing components.

Benefits of Using a Complete Kit

Using a complete rear left brake caliper and suspension knuckle assembly for the BMW 3 Series F30 with an N20 engine helps reduce repair time and complexity. Instead of replacing individual components, a mechanic installs one assembly, which:

• facilitates maintaining the correct positioning of the caliper relative to the disc,
• reduces the risk of assembly errors when putting together several separate parts,
• speeds up the process of setting the rear axle geometry after repair,
• ensures structural consistency within the entire suspension corner.

This solution is particularly beneficial for workshop repairs where consistent results and predictable vehicle behavior after assembly are crucial.

Mounting and Operational Characteristics

The component is designed for installation on the rear left side of the vehicle, which is important for suspension geometry as well as the routing of brake lines and cables. With correct installation, the factory suspension kinematics are maintained, and the caliper operates within the range intended by the manufacturer.

In workshop practice, such a kit is effective for:

• repairs after damage to the knuckle or caliper mounts,
• refurbishment of the braking zone on the left side,
• restoring original driving characteristics after modifications or collisions.

The used nature of the part allows for economical repair while maintaining the original BMW construction, which is important for driving stability and predictable vehicle behavior.

Application in Tuning and Used Parts Repairs

A properly selected rear left brake caliper with suspension knuckle is an important element for both standard repairs and modernization projects where maintaining safety and proper brake system function is key. Using used OEM components allows for cost optimization without sacrificing factory design.

If you are interested in the broader context of using used components in premium cars and want to see how such solutions perform in practice, check out the article Audi on second-hand parts – tuning and repairs without quality loss, which discusses examples of effective use of refurbished and used components in German cars.

BMW Suspension System Expansion

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