Audi A4 B8 A5 8T Front Axle Lower Wishbone Control Arm Right O/S 8K0407156B

Audi A4 B8 A5 8T Front Axle Lower Wishbone Control Arm Right O/S is an original component from the Control arms and ball joints group, designed for operation in the front suspension on the right side. Thanks to its factory geometry and design compliant with the manufacturer's standards, it ensures stable handling, precise wheel alignment, and predictable vehicle behavior during braking and cornering.

Specifications and technical data

• SKU: 8K0407156B-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0407156B
• Substitutable numbers: 8K0407156B, 8K0 407 156 B, 8K0 407 152 D, 8K0407152D
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension system

The presented control arm is a lower front suspension component for the right side, working in conjunction with the shock absorber strut, steering knuckle, and ball joint. It is responsible for maintaining the correct position of the wheel relative to the body, transferring road loads, and dampening vibrations in combination with other suspension components.

Thanks to its carefully selected stiffness and geometry, the control arm helps maintain a stable driving path, limits unwanted changes in wheel camber and toe angles, and supports even tire wear. This is particularly important in Audi A4 B8 and A5 8T class vehicles, where handling precision and ride comfort are key design features.

Benefits of using an original control arm

Using an original control arm in the front suspension translates into a number of practical operational benefits:

• preservation of the vehicle's factory handling characteristics,
• proper cooperation with other steering and suspension system elements,
• appropriate transfer of dynamic loads during acceleration, braking, and driving over uneven surfaces,
• reduced risk of abnormal tire wear resulting from incorrect geometry.

For the user, this means more predictable vehicle behavior, better control over the car, and the ability to fully utilize the potential of the chassis system.

Installation characteristics and fitment

The control arm has been designed to work within the specific structural layout of the Audi front suspension, which facilitates installation and limits the need for additional modifications. Proper fitment to the mounting points on the body and steering knuckle allows for efficient replacement in a workshop environment, followed by geometry adjustment in accordance with the manufacturer's guidelines.

This component is particularly recommended in situations where the existing control arm shows play in the ball joint, mechanical damage, or signs of excessive corrosion, which may affect driving safety and handling comfort.

Condition and practical application

The offered control arm is a used part, which allows for an economical suspension repair while maintaining the original manufacturer's specifications. In many cases, this represents a reasonable compromise between repair cost and the quality and fitment of the component, especially compared to uncertain aftermarket replacements with unverified parameters.

After installation, it is recommended to perform a full inspection of the suspension system and a geometry alignment to fully utilize the potential of the newly installed control arm and ensure stable, safe vehicle handling.

Suspension service expansion and technical knowledge

When replacing the control arm, it is worth considering a comprehensive assessment of the condition of other suspension elements, such as shock absorbers, other control arms, or stabilizers. To deepen your knowledge about the operation of the entire suspension system and the relationships between individual components, the following article will be helpful: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.

If you are planning a comprehensive repair or upgrade of the front suspension area in your Audi and need other elements from the same group, such as additional control arms, ball joints, or mounting hardware, check out the available parts in the Audi control arms and ball joints category.