Audi A6 C8 Suspension Leg Wheel Carrier Bearing Rear Left N/S Brake Disc Caliper

Description

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A6 C8 Suspension Leg Wheel Carrier Bearing Rear Left N/S Brake Disc Caliper is a complete chassis component, including the wheel carrier, bearing, carrier bracket, and brake caliper with disc. This solution is designed for the rear axle on the driver’s side, allowing for efficient replacement of a worn module and restoring proper suspension and brake performance in your Audi. By combining several sub-assemblies into one unit, the installation is more organized and technically predictable, which facilitates the mechanic’s work and reduces the risk of part mismatch.

Specifications and technical data

• SKU: 4K0505431Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0505431Q
• Substitutable numbers: 4K0505431Q, 4K0 505 431 Q, 8W0615403N, 8W0 615 403 N, 8W0615601E, 8W0 615 601 E, 4N0501203, 4N0 501 203
• Location on the vehicle: Rear, Left
• Part type: Wheel Bearing
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the chassis system

The described assembly is dedicated for installation on the rear left side of the vehicle, where it is responsible for wheel guidance, transferring loads from the suspension, and stable mounting of brake components. The wheel carrier works with the control arms and shock absorber, while the integrated bearing ensures smooth hub rotation while maintaining proper rigidity. The brake disc and caliper assembly enables effective deceleration, maintaining the factory performance characteristics of the Audi braking system.

Set construction: wheel carrier, bearing, disc, and caliper

In one module, you receive a load-bearing suspension element in the form of a wheel carrier, in which the bearing and hub are seated, as well as a complete brake assembly with a disc and caliper. This configuration:

• simplifies the replacement process – you remove and install one assembly instead of several separate parts,
• reduces the risk of installation errors associated with improper alignment of individual components,
• ensures consistency in the operation of the bearing, hub, and brakes in one factory-matched system.

Thanks to this solution, you can reliably restore the rear axle geometry and maintain predictable vehicle behavior during braking and cornering. This is particularly important in modern designs, where wheel guidance precision has a direct impact on the operation of safety systems.

Benefits of using an original Audi component

The original Audi wheel carrier assembly with bearing and brake caliper has been designed specifically for the geometry and load requirements of the A6 C8 generation model. This means:

• factory mounting points for control arms, shock absorber, and brake system,
• preservation of the structural rigidity intended by the manufacturer,
• compatibility with the standard ABS/ESP system and vehicle electronics.

By choosing such an element, you minimize the risk of fitment issues and the need for additional modifications. This solution is particularly beneficial for post-accident repairs or when replacing worn suspension components, where repeatability and stable operating parameters of the system are crucial.

Characteristics of the used part

The presented assembly comes from dismantling and is offered as a used part. In practice, this means that the element was previously used in a vehicle but has retained its full structural functionality and can be reused after standard workshop verification. For many users, this is a reasonable compromise between repair costs and maintaining the original build quality characteristic of the Audi brand.

If you want to better understand how to safely use dismantled components and what to look for when choosing them, it is worth reading the article Used car parts: Myths and facts you need to know, which dispels the most common doubts related to such service solutions.

Comprehensive rear axle service for Audi

If you are planning a comprehensive repair or upgrade of the rear axle suspension area in your Audi and need other elements from the same group, such as hubs, bearings, or bushings, check out the available parts in the Audi wheel bearings, hubs, and bushings category.

Such an approach allows you to renew key components responsible for wheel guidance in a single service stage, reduce future service downtime, and maintain a consistent technical standard for the entire rear axle.