Ford Focus St-3 Mk3 Rear Suspension Leg Wheel Hub Knuckle Brake Disc Left N/S

Ford Focus St-3 Mk3 Rear Suspension Leg Wheel Hub Knuckle Brake Disc Left N/S is a complete, used rear suspension component for the left side, designed for Ford Focus ST-3 MK3 models. The set combines key components responsible for wheel guidance, load bearing, and interaction with the braking system, allowing for efficient and technically correct replacement in a single service process. By maintaining factory geometry, it provides a solid foundation for restoring the proper operation of the suspension and braking system.

Specifications and technical data

• SKU: 1778732
• Mark: Ford
• Condition: Used
• OEM Part Number: 1778732
• Substitutable numbers: BV615A969BF, BV61-5A969-BF, 1778732
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The presented set belongs to the Suspension replacement kits group and is dedicated to installation on the rear axle on the left side. The steering knuckle with the wheel hub is responsible for precise wheel guidance relative to the body, maintaining proper geometry, and stable load transfer during driving, braking, and traversing uneven surfaces. The integrated brake disc works with the caliper and pads, ensuring effective speed reduction and even distribution of braking forces on the axle.

Set construction and benefits of complete replacement

Using a complete assembly of the steering knuckle, wheel hub, and brake disc reduces the risk of improper fitment of components from different sources. In a single service installation, you can:

• restore the correct wheel seating relative to the body,
• ensure stable cooperation of the hub with bearings and suspension elements,
• achieve consistent braking system performance on that side of the axle. For Ford users, maintaining the correct rear axle geometry is particularly important, as it affects handling stability, predictable car behavior in corners, and even tire wear. A complete set also facilitates diagnostics – after replacement, play and vibrations resulting from the wear of several cooperating components are eliminated.

Selection, installation, and compatibility

The element was designed as an original part for the Ford brand, which means maintaining factory mounting points and compatibility with the suspension design in the ST-3 MK3 version. The placement on the vehicle, defined as rear – left side, allows for unambiguous assignment of the set to the correct mounting position, which is crucial for the correct setting of suspension angles and braking system operation. During replacement, it is recommended to check the condition of cooperating suspension and brake elements on the same side of the axle to avoid differences in performance characteristics between the left and right sides. A used component can be an attractive cost-effective solution, especially for post-accident repairs or restoring a car to working order after mechanical damage to the rear suspension.

Why consider a used suspension set

In the case of models with more advanced suspension, such as the sporty Ford Focus ST-3 MK3 variants, purchasing a new set of steering knuckle, wheel hub, and brake disc can be expensive. A used set with preserved geometry and a correct mounting base allows for a significant reduction in repair costs while maintaining the proper operating parameters of the system. This solution is particularly beneficial when the priority is to quickly restore full vehicle functionality on a reasonable budget. To better understand the structural differences in suspension and make informed decisions regarding the purchase of used parts, it is worth reading our guide: Standard vs. sports suspension – design differences and is it worth buying used suspension parts?. The article discusses, among other things, component selection, configuration examples, and practical service tips.

Expanding repairs within the Ford suspension

If you are planning a comprehensive repair or upgrade of the suspension area in your Ford and need other elements from the same group, such as control arms, links, or additional mounting components, check out the available parts in the Ford suspension replacement kits category.

Summary

Ford Focus St-3 Mk3 Rear Suspension Leg Wheel Hub Knuckle Brake Disc Left N/S is a practical choice for users looking for a complete, used rear suspension set for the left side, combining wheel guidance and braking system interaction functions. The original design for the Ford brand promotes correct installation, and replacing several key elements in a single assembly allows for reduced repair time and minimizes the risk of geometry and vehicle stability issues after service.