Audi A4 B9 Wheel Carrier Front Right O/S Wheel Hub Holder Brake Disc Plate

Audi A4 B9 Wheel Carrier Front Right O/S Wheel Hub Holder Brake Disc Plate is a component from the Suspension replacement kits group, designed for operation in the front right corner of the chassis. It is responsible for precise wheel guidance, stable hub mounting, and maintaining the correct suspension geometry in your Audi. Thanks to its factory design, it ensures predictable vehicle behavior and safe load transfer while driving.

Specifications and technical data

• SKU: 8W0407254F
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0407254F
• Substitutable numbers: 8W0407254F, 8W0 407 254 F
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension

The steering knuckle with the wheel hub and carrier for the right side of the front axle works with suspension and steering system components, creating a rigid yet appropriately flexible load-bearing node. This component is responsible for:

• maintaining the wheel in the correct position relative to the body,
• stable mounting of the hub and associated components,
• transferring forces from the control arms and shock absorber to the body,
• maintaining proper wheel geometry during driving and braking.

Thanks to its fitment for the specific Audi model, the chassis maintains factory handling parameters, which translates into predictable vehicle reactions.

Compatibility and fitment for Audi

The offered element was designed for the Audi A4 B9 platform, taking into account the specific vehicle placement – front, right side. This means that the geometry of the mounts, connection points, and the shape of the steering knuckle are consistent with the manufacturer's factory specifications.

Such fitment allows for:

• trouble-free installation in place of the original component,
• compatibility with stock control arms, shock absorbers, and the hub,
• maintaining correct camber and toe angles after geometry alignment.

This is particularly important for post-collision repairs or replacing worn suspension components, where precision and compliance with the manufacturer's design are essential.

Characteristics of the used component

The steering knuckle with the wheel hub and carrier comes from the secondary market, which allows for combining an attractive price with maintaining a design consistent with the factory Audi project. The used component retains its original geometry and mounting points, which is crucial for the proper operation of the suspension.

When selecting such an element, it is worth paying attention to:

• the absence of visible cracks and deformations in the mounting zones,
• the condition of surfaces interacting with the bearing and hub,
• the ability to properly tighten bolts and pins.

A properly selected and installed steering knuckle allows for restoring handling stability and reducing uneven tire wear.

Application in service and suspension upgrades

This type of component is often used for repairs after mechanical damage, replacing complete suspension nodes, or upgrading the chassis. Replacing the steering knuckle with the hub and carrier with a functional component enables:

• restoring the correct driving path after hitting a curb or pothole,
• eliminating play and abnormal noises from the front suspension,
• obtaining a stable reference point for wheel geometry alignment.

For workshops and private users, this means a faster and more predictable repair, without the need for adaptations or modifications.

Technical support and selection of suspension parts

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

When selecting used suspension components, it is worth knowing the structural differences between stock and sports solutions, as well as the principles of safely choosing components from the secondary market – this is discussed in detail in the article "Stock vs. sports suspension – differences in construction and is it worth buying used suspension parts?", which will help you consciously plan the repair or upgrade of your chassis.