BMW X1 E84 Wheel Hub Rear Axle Right O/S 20i Suspension Leg Brake Disc Caliper

BMW X1 E84 Wheel Hub Rear Axle Right O/S 20i Suspension Leg Brake Disc Caliper is a complete, used set of rear suspension components designed for the right side of the axle in the BMW X1 E84 20i model. It includes key components responsible for wheel guidance, power transmission, and braking system operation, allowing for a consistent, technically correct replacement in a single service process. Such a set is particularly beneficial for post-accident repairs or when several components are significantly worn simultaneously, ensuring structural consistency and compliance with BMW's factory specifications.

Specifications and technical data

• SKU: 6788050-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6788050
• Substitutable numbers: 33326788050, 6788050, 4608770, 33207605484, 7605484, 34216768698, 6768698, 34216864901, 6864901, 33326788054, 6788054, 34216855008, 6855008, 34216764653, 6764653
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented suspension set for the right rear axle has been designed specifically for the BMW X1 E84 20i construction, which guarantees proper geometry, appropriate stiffness, and compatibility with factory mounting points. The elements included – steering knuckle, suspension leg, wheel hub, brake caliper, and drive shaft – work together as a coherent system responsible for:

• stable wheel guidance in both vertical and horizontal planes,
• transferring torque from the drivetrain to the wheel,
• cooperation with the braking system and safety systems,
• maintaining correct suspension geometry and driving path.

Thanks to this, replacing the entire assembly in one service stage reduces the risk of incorrect assembly of mixed components and facilitates subsequent wheel alignment.

Key components of the set and their role

The set includes elements responsible for various functions within the rear axle. The steering knuckle and suspension leg form the structural base for mounting the wheel hub, brake caliper, and the components securing the control arms and shock absorber. The wheel hub ensures axial wheel seating and cooperation with the bearing, which translates into smooth, predictable suspension operation. The brake caliper interacts with the brake disc and pads, enabling effective deceleration, while the drive shaft is responsible for transferring power from the transmission to the wheel while maintaining the appropriate flexibility of the suspension operation.

A set configured in this way allows for a technically correct rebuild of the entire wheel hub assembly on the right side of the rear axle, which is particularly important in the event of mechanical damage or corrosion of several elements at once. Set replacement also facilitates diagnostics – after installation and geometry adjustment, it is easier to detect any remaining irregularities in other suspension parts.

Benefits of using original used components

Original BMW components from dismantling retain the factory suspension performance characteristics, which is important for both comfort and the predictability of vehicle handling. Compared to random aftermarket replacements, a coherent set from a single vehicle minimizes the risk of differences in dimensions, material hardness, or manufacturing quality. A used, original suspension set is a reasonable compromise between repair costs and maintaining the driving characteristics intended by the manufacturer.

If you are also considering other repairs within the drivetrain, it is worth familiarizing yourself with practical tips regarding the selection of parts from dismantling – you will find them in the article Manual transmission failures – why an original used part is a more reasonable choice than regeneration, which discusses the advantages of using original used components instead of costly regeneration.

Selection, installation, and service aspects

The set is intended for installation on the rear, right side of the vehicle, which must be strictly taken into account when planning the repair. When replacing the entire wheel hub assembly, it is recommended to:

• check the condition of other suspension elements (control arms, springs, shock absorbers),
• verify the braking system on the opposite side to maintain uniform braking efficiency,
• perform a mandatory geometry alignment after installation is complete,
• check the operation of auxiliary systems (ABS, traction control) after the first test drive.

Professional installation by an experienced service center allows you to fully utilize the potential of the set and reduce the risk of secondary faults resulting from incorrect tightening or positioning of the elements.

Expanding the repair within the BMW suspension

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, wheel hubs, or complete suspension legs, check the available parts in the BMW suspension replacement kits category.