Audi A5 8T Front Wheel Hub Bearing Carrier Left N/S 8K0407253AA

Front left steering knuckle with wheel hub for Audi A5 8T is an original part from the Bearings, Wheel Hubs, and Bushings group, designed for installation on the front axle on the driver's side. This solution is dedicated to demanding users who expect precise handling, stability, and the preservation of factory suspension geometry in their Audi.

Specifications and technical data

• SKU: 8K0407253AA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0407253AA
• Substitutable numbers: 8K0407253AA, 8K0 407 253 AA
• Location on the vehicle: Front, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and Function in the Drivetrain

The front left steering knuckle with wheel hub in the Audi A5 8T is responsible for stable wheel mounting, transferring loads from the suspension to the body, and cooperating with steering and braking system components. A correctly selected and fitted part in this location is crucial for:

• maintaining proper wheel geometry (toe, camber),
• precise vehicle handling at higher speeds,
• even wear of tires and suspension components,
• correct operation of the wheel bearing and braking system.

By using an original steering knuckle with hub, you minimize the risk of geometry setting issues and unwanted play in the drivetrain.

Construction and Compatibility with Audi A5 8T

The presented component has been designed specifically for the Audi A5 8T platform, taking into account the structural requirements of the front axle. Its placement on the vehicle is front, left side, which means full compatibility with factory mounting points for control arms, shock absorber, hub, and steering system components.

The appropriate geometry of the steering knuckle body ensures:

• correct positioning of the hub relative to the body and braking system,
• proper cooperation with factory control arms and shock absorbers,
• preservation of the handling characteristics designed by the manufacturer.

This makes installation predictable for the mechanic, and the vehicle retains near-factory parameters after repair.

Benefits of Using an Original Used Steering Knuckle

Choosing an original, used part from this group is a sensible compromise between cost and quality. This type of part allows you to:

• maintain factory fit and structural rigidity,
• avoid problems typical of cheap aftermarket parts with imprecise dimensions,
• reduce repair costs while maintaining a high level of safety.

For many Audi A5 8T users, this is a practical solution for repairs after a collision, replacing a damaged hub, or addressing excessive play in the wheel mounting area.

Practical Application in Service

The front left steering knuckle with wheel hub is particularly important for:

• repairs after mechanical damage (e.g., hitting a curb, a pothole),
• replacing components due to corrosion or body cracks,
• problems with correct geometry setting when other suspension components are functional.

After installation, it is recommended to perform a full wheel alignment to fully utilize the potential of the newly installed component and ensure even tire wear and stable vehicle handling.

Audi Drivetrain Expansion – Related Components

If you are planning a comprehensive repair or upgrade of the suspension and drivetrain area in your Audi and need other components from the same group, such as hubs, bearings, or bushings, check the available parts in the Audi Bearings, Wheel Hubs, and Bushings category.

When choosing used suspension components, it is worth approaching the topic of quality and durability consciously. To better understand how to safely use the secondary market and what to look for when buying such parts, read the article Used Car Parts: Myths and Facts You Need to Know.