Wheel Carrier Audi A4 B6 B7 Front Left N/S Suspension Mount Knuckle 8E0407257H

Wheel Carrier Audi A4 B6 B7 Front Left N/S Suspension Mount Knuckle is a key component of the suspension system, responsible for precise wheel guidance and vehicle stability while driving. Thanks to its factory geometry and fitment for the front axle on the driver's side, the steering knuckle ensures predictable vehicle behavior, which translates into safe handling. This solution is designed for users who expect consistency with the factory suspension design and want to restore proper wheel system operation.

Specifications and technical data

• SKU: 8E0407257H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0407257H
• Substitutable numbers: 8E0407257H, 8E0 407 257 H
• Location on the vehicle: Front, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the suspension

The front left steering knuckle in the Audi A4 B6 and B7 generations serves as the central connection point for suspension components, the steering system, and the wheel hub. It is responsible for maintaining the correct position of the wheel relative to the body, transferring loads from the road surface, and maintaining proper toe and camber angles. A correctly selected steering knuckle reduces excessive tire wear, improves braking stability, and influences the vehicle's predictable response to steering inputs.

Compatibility with the front left axle

The presented steering knuckle is designed for installation on the front axle on the left side, which is crucial for both suspension geometry and the correct positioning of mating components, such as the wheel hub or bearing. Using the correct component on the appropriate side of the vehicle allows for maintaining factory handling parameters and minimizes the risk of geometry alignment issues after repair.

Benefits of using an original Audi steering knuckle

Choosing a steering knuckle dedicated to a specific Audi A4 B6/B7 model primarily ensures reliable fitment to the suspension design and the preservation of the mounting points specified by the manufacturer. Such a component works correctly with the hub, bearing, and bushings, which facilitates installation and limits the need for additional modifications. For the user, this means stable handling, predictable vehicle behavior in corners, and proper operation of the steering system.

Component condition and service application

The steering knuckle comes from the Bearings, wheel hubs, and bushings group, which emphasizes its close connection to the rolling system and the transfer of loads from the road surface. As a used part, it is intended primarily for service applications – replacing a damaged steering knuckle after a collision, repairing suspension play, or restoring correct geometry after previous interventions. It is a practical solution for drivers who want to keep their car in good technical condition while maintaining a reasonable cost level.

Support in choosing a used part

If you want to better understand how to safely choose components from the secondary market and what to pay attention to when purchasing such parts as steering knuckles, hubs, or bearings, it is worth reading our guide: Used car parts: Myths and facts you need to know. This is a helpful addition to your knowledge when planning suspension repairs in your Audi.

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