Audi A4 B8 Rear Wheel Hub Bearing Knuckle Right O/S 8K0505432AK

Audi A4 B8 Spindle Knuckle Hub Wheel Bearing Right Rear is an original drivetrain component from the Wheel Bearings, Hubs & Bushings group, designed for installation on the rear right axle. This used OEM part ensures factory fitment, correct suspension geometry, and stable vehicle handling, contributing to safe and predictable rear suspension operation.

Specifications and technical data

• SKU: 8K0505432AK-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0505432AK
• Substitutable numbers: 8K0505432AK, 8K0 505 432 AK
• Location on the vehicle: Rear, Right
• Part type: Wheel Bearing
• Category: Wheel Bearings, Hubs & Seals

Application and Function in the Drivetrain

The spindle knuckle integrated with the hub and wheel bearing for the right rear axle is responsible for precise wheel guidance, transferring loads from the suspension to the body, and maintaining the correct position of the hub relative to the braking system. In conjunction with other rear suspension components, it ensures:

• stable wheel guidance when driving straight and cornering,
• maintenance of correct wheel toe and camber,
• proper cooperation with the braking system and safety systems,
• appropriate transfer of longitudinal and lateral forces to the body.

Assembly Structure: Spindle Knuckle, Hub, Bearing

The complete assembly includes the spindle knuckle body and the hub with the wheel bearing seated within it, which simplifies servicing and reduces replacement time compared to replacing individual components separately. The factory design ensures dimensional compatibility with the original Audi suspension, and appropriately selected mounting points allow for correct connection with control arms, the shock absorber, and braking system components.

By using an original solution from the Wheel Bearings, Hubs & Bushings category, compatibility with standard components is maintained, minimizing the risk of geometry issues, play, or improper bearing operation.

Vehicle Placement and Fitment

This component is designed for the rear right side of the vehicle, which is crucial when selecting parts for a multi-link suspension system. Correct placement on the vehicle guarantees:

• compliance with the original Audi suspension design,
• correct positioning of the hub relative to the wheel arch and brake disc,
• hassle-free installation in place of the original part.

Choosing a spindle knuckle with a hub and bearing that matches the rear axle design helps avoid installation problems, incorrect wheel alignment, or accelerated tire wear.

Characteristics of a Used Part

The presented assembly comes from the aftermarket, offering a reasonable compromise between repair cost and maintaining original technical specifications. A used OEM part is a good solution for drivers who want to preserve the factory suspension design while optimizing their service budget. Before installation, a standard inspection of the bearing condition, mounting points, and surfaces interacting with other suspension components is recommended.

If you want to better understand how to safely use the aftermarket and what to look for when purchasing components like spindle knuckles, hubs, or bearings, read the article Used Car Parts: Myths and Facts You Need to Know, which dispels common doubts related to used components.

Application in Suspension Service and Upgrades

Replacing the spindle knuckle with hub and bearing on the rear right axle is recommended in cases of mechanical damage, bearing play, body corrosion, or problems with maintaining wheel geometry. Such a complete unit is suitable for both standard collision repairs and comprehensive suspension overhauls. By preserving the original design, it is possible to:

• restore proper vehicle handling,
• reduce noise and vibrations originating from the rear axle,
• maintain correct cooperation with ABS/ESP systems (when using appropriate sensors and hardware).

If you are planning a more extensive service of your Audi's rear suspension and also need other parts from the same group, such as additional hubs or bearings, check the available parts in the Audi Wheel Bearings, Hubs & Bushings category.