Audi A4 8K A5 8T Wheel Carrier Steering Knuckle Front Left N/S 4G0407253B

Audi A4 8K A5 8T Wheel Carrier Steering Knuckle Front Left N/S is an original suspension component from the Wheel bearings, hubs and bushings group, designed for installation on the front left side of the vehicle. Engineered by the vehicle manufacturer, it ensures proper suspension geometry, stable handling, and predictable vehicle behavior during braking and cornering. This used OEM component is a sensible choice for drivers who expect factory-fit quality and controlled repair costs.

Specifications and technical data

• SKU: 4G0407253B-3
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0407253B
• Substitutable numbers: 4G0407253B, 4G0 407 253 B
• Location on the vehicle: Front, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and function in the suspension system

The front left steering knuckle in the Audi A4 8K and A5 8T is a key element connecting the wheel hub, shock absorber, control arms, and steering system. It is responsible for:

• maintaining the correct wheel position relative to the body,
• transferring loads from the road surface to the suspension,
• ensuring stable mounting of the hub and wheel bearing,
• precise wheel guidance during steering.

Thanks to its factory design, compliance with the geometry parameters specified by the manufacturer is maintained, which translates into predictable handling and even tire wear.

Construction and fitment for Audi A4 8K / A5 8T

The presented steering knuckle has been designed specifically for operation on the front left side of the vehicle, taking into account the suspension characteristics of the Audi A4 B8 (8K) generation and Audi A5 8T models. The arrangement of mounting points is compatible with factory control arms, shock absorbers, wheel hubs, and steering components, which facilitates installation and allows for the retention of standard structural settings.

Its original Audi origin means compatibility with factory design solutions, without the need for modifications or fitting aftermarket parts with uncertain geometry.

Benefits of using a used OEM steering knuckle

Choosing a used OEM component instead of cheap replacements offers a number of practical advantages:

• factory fitment to the body and suspension of the specific model,
• preservation of the stiffness and operating characteristics of the suspension system as intended by the manufacturer,
• reduced risk of wheel alignment issues after repair,
• favorable cost-to-quality ratio thanks to the use of salvaged parts.

The used condition allows for an economical repair following mechanical damage, such as collisions or impacts with road obstacles, while maintaining the original suspension design.

Application in service practice

The front left steering knuckle for the Audi A4 8K / A5 8T is suitable for both post-accident repairs and replacing components after long-term use, when problems with proper wheel alignment appear or damage to the mounts is visible. Installing an original component facilitates service work and allows for faster achievement of correct geometry parameters on the alignment rack.

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

An informed choice of a used part

For many drivers, choosing a used steering knuckle is a way to reduce costs without sacrificing original quality. If you want to better understand how to safely use salvaged parts and what to look for when purchasing, read the article Used car parts: Myths and facts you need to know. This will allow you to approach the purchase in a more informed and technically justified manner.

Summary

Audi A4 8K A5 8T Wheel Carrier Steering Knuckle Front Left N/S is a practical solution for users who want to restore the proper operation of the suspension and steering system while maintaining factory vehicle handling parameters. The original design from the Wheel bearings, hubs and bushings group facilitates installation, supports correct geometry alignment, and provides a solid foundation for further service work on the Audi chassis.