Audi A6 C8 2019 Wheel Bearing Housing Front Left Knuckle 4K0407253D

Audi A6 C8 2019 Front Left Wheel Bearing Housing Steering Knuckle is a component from the Bearings, Wheel Hubs, and Bushings category, designed for the front axle on the left side of the Audi A6 C8 generation. This factory original design ensures proper wheel guidance, suspension stability, and precise maintenance of the front drivetrain geometry.

Specifications and technical data

• SKU: 4K0407253D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0407253D
• Substitutable numbers: 4K0407253D, 4K0 407 253 D
• Location on the vehicle: Front, Left
• Part type: Wheel Bearing
• Category: Wheel Bearings, Hubs & Seals

Purpose and Function in the Drivetrain

The front left steering knuckle in the Audi A6 C8 is responsible for a rigid yet precise connection between the wheel hub and the suspension and steering components. The wheel bearing housing is a key mounting point for the control arms, shock absorber, and hub, which translates to:

• stable wheel guidance throughout the entire suspension travel range,
• maintenance of correct front wheel geometry,
• reliable transfer of loads from the road surface to the body,
• cooperation with the braking and steering systems without unwanted play.

The vehicle placement specified as front – left side allows for unambiguous matching of the component to the correct mounting position in the body.

Compatibility and OEM Identification

The presented steering knuckle has been specifically designed for the Audi A6 C8, model year 2019, as part of the original front suspension construction. Thanks to the OEM Part Number (available in the specifications), precise verification of compatibility with the specific engine and equipment version of the vehicle is possible.

The presence of interchangeable numbers in the technical specifications facilitates the selection of the appropriate steering knuckle variant in case of manufacturer catalog changes or updates to numbering in service systems. This is particularly important when comparing used parts with service documentation or online catalogs.

Category Characteristics: Bearings, Wheel Hubs, and Bushings

The steering knuckle with the wheel bearing housing belongs to the group of components responsible for wheel guidance and support. Within the Bearings, Wheel Hubs, and Bushings category, this component works with the bearing, hub, and metal-rubber bushings, forming a cohesive load transfer system. A correctly selected and installed steering knuckle influences:

• even tire wear,
• vehicle stability during braking and lane changes,
• reduction of vibrations transmitted to the body,
• accuracy of wheel alignment and camber settings.

In case of intervention in the front suspension – after a collision, component replacement, or refurbishment – using the correct steering knuckle is crucial for maintaining factory driving parameters.

Used Condition and Benefits of Choosing OE Parts

The offered steering knuckle is a used Audi brand part, sourced from disassembly. In practice, this means retaining the original geometry, mounting points, and compatibility with factory suspension and brake components. Compared to low-budget aftermarket alternatives, the original design ensures:

• consistency with the vehicle manufacturer's engineering design,
• appropriate rigidity and resistance to operational loads,
• easier installation without the need for modifications.

For many Audi A6 C8 owners, choosing a used OE part is a sensible compromise between repair cost and maintaining driving characteristics and safety.

Selection, Installation, and Technical Support

Before purchasing the front left steering knuckle, it is recommended to verify compatibility by OEM number and compare the shape and mounting points with the currently installed component. Installation should be performed by a workshop equipped with the appropriate tools for suspension work and the capability to perform wheel alignment after completion of the work.

If you want to better understand why choosing a used suspension part can be cost-effective and safe, it is worth reading the article: Used Car Parts: Myths and Facts You Need to Know. You will find practical information there to help you make informed purchasing decisions.

If you are looking for other elements from the Bearings, Wheel Hubs, and Bushings category for this brand of car, check out the Audi Bearings, Wheel Hubs, and Bushings available in our store to select complete solutions for your drivetrain.