BMW 1 E88 Cabrio 123d N47S Rear Left N/S Suspension Hub Leg Brake Caliper Disc

BMW 1 E88 Cabrio 123d N47S Rear Left N/S Suspension Hub Leg Brake Caliper Disc is a complete, used module including the hub, steering knuckle, brake caliper, and brake disc, designed for installation on the rear axle on the driver's side. This OEM solution ensures structural consistency of the chassis, facilitates servicing, and allows for the quick replacement of the entire assembly instead of individual components. As a result, it is a practical choice for suspension and brake system repairs in this model.

Specifications and technical data

• SKU: 6774807-14
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774807
• Substitutable numbers: 33217561789, 7561789, 33217533453, 7533453, 33326774807, 6774807, 34216768697, 6768697, 34216855236, 6855236, 33326757735, 6757735
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and fitment

The presented set has been designed for the BMW 1 Series E88 Cabrio 123d with the N47S engine, taking into account the convertible body geometry and rear axle characteristics. The placement on the vehicle is the rear left side, which is crucial for maintaining proper wheel alignment, camber angles, and even brake performance.

The complete configuration of elements in one module reduces the risk of incorrect part selection and facilitates workshop work – especially during post-collision repairs or when replacing worn suspension and brake components.

Set construction and function of individual elements

The set includes key components responsible for wheel guidance and transferring braking forces to the body. It consists of:

• wheel hub – responsible for stable rim seating and cooperation with the bearing,
• steering knuckle (leg / hub leg) – connects suspension elements with the hub, maintaining proper wheel geometry,
• brake caliper – ensures the pads press against the disc for effective deceleration,
• brake disc – works with the caliper, transferring braking forces to the wheel.

This configuration allows for consistent operation of the suspension and brake system, which translates into handling stability, predictable car behavior, and safe braking in typical road conditions.

Application in the BMW E88 Cabrio chassis

In the BMW E88 123d convertible, the rear suspension assembly has a significant impact on vehicle behavior under load, during direction changes, and braking. Using a complete module with the hub, steering knuckle, caliper, and disc allows for maintaining factory suspension performance parameters, which is especially important during dynamic driving and in cars with a more powerful diesel engine.

A used OEM element from this group is often chosen as an economical alternative to new components, while maintaining the original design and compatibility with the vehicle's factory systems.

Benefits of using a complete suspension replacement set

Choosing a complete set from the Suspension replacement sets category instead of individual parts brings a number of practical benefits:

• consistency of elements – all components are structurally matched to each other,
• reduced repair time – the mechanic replaces the entire module without the need to disassemble and source individual parts,
• easier diagnostics – in case of mechanical damage or rear axle corrosion, replacing the complete assembly is often faster and more predictable,
• maintaining factory geometry – the original design makes it easier to set suspension parameters after installation.

For the user, this means more predictable service costs and a lower risk of additional repairs resulting from incomplete component replacement.

Choosing used suspension and technical support

When choosing a used suspension set, it is worth paying attention to compatibility with the specific body and engine version, as well as correct placement on the vehicle (rear, left side). It is also helpful to compare the construction of the element with the part removed from the car and verify compatibility in the manufacturer's catalogs.

If you want to better understand the differences between standard and sports suspension, as well as take an informed approach to purchasing used chassis components, check out the article: Standard vs. sports suspension – construction differences and choosing used parts. It is a practical source of knowledge that will facilitate your service decision.

If you are planning a comprehensive repair or upgrade of the rear suspension area 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 sets category.