Audi A4 B9 2.0 Suspension Leg Rear Right O/S Wheel Carrier Brake Disc Caliper

Audi A4 B9 2.0 Suspension Leg Rear Right O/S Wheel Carrier Brake Disc Caliper is a complete, used rear suspension assembly designed for the right side of the rear axle in Audi vehicles. The set combines key steering and braking components into a single unit, which facilitates servicing, reduces repair time, and helps maintain the structural integrity of the entire module.

Specifications and technical data

• SKU: 8W0505432S
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0505432S
• Substitutable numbers: 8W0505432S, 8W0 505 432 S, 8W0 615 404, 8W0 615 601 C
• Location on the vehicle: Rear, Right
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented set belongs to the Suspension replacement kits category and is intended for installation on the rear axle, on the right side of the vehicle. It includes components responsible for wheel guidance, transferring loads from the body to the road, and interacting with the braking system. Combining these in one module makes it easier to maintain proper suspension geometry and correct positioning of the brake disc and caliper relative to the hub and wheel carrier.

Set construction and function of individual elements

The set includes components responsible for several key functions:

• suspension leg – transfers vertical and lateral loads, works in conjunction with other control arms and steering components,
• wheel carrier – serves as the central mounting point for the wheel hub and suspension elements, ensuring stable wheel guidance along the intended trajectory,
• brake disc – works with the caliper to provide effective deceleration,
• brake caliper – presses the pads against the disc, generating braking force and stabilizing system operation.

A set configured in this way allows for a consistent replacement of the entire rear suspension module on the right side, which is particularly beneficial in cases of mechanical damage, corrosion, or uneven wear of several elements simultaneously.

Benefits of using an original Audi set

The offered product comes from the Audi parts group, which ensures the maintenance of factory parameters for fitment with the body, braking system, and other suspension components. The original design provides:

• proper interaction with the standard rear axle geometry,
• appropriate wheel positioning relative to the wheel arch and body,
• compatibility with standard mounts, bolts, and accessories,
• consistent vehicle behavior during braking, acceleration, and cornering.

Thanks to this, the set is particularly useful for post-accident repairs, replacing worn suspension elements, or restoring the vehicle's standard driving characteristics after previous modifications.

Selection, installation, and practical application

Before installation, it is recommended to verify compatibility with the specific version of the Audi A4 B9 2.0, taking into account the body type and chassis configuration. As a used item, the set is a good solution for users looking for a compromise between repair costs and maintaining the original suspension design. After installation, it is advisable to set the rear axle geometry to fully utilize the potential of the set and ensure even tire wear and stable vehicle handling.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Audi and need other elements from the same group, such as additional suspension legs, wheel carriers, or complete modules with discs and calipers, check the available parts in the Audi suspension replacement kits category.

Technical support and knowledge about used suspension

When choosing a used suspension set, it is worth knowing the differences between standard and sport configurations, as well as the criteria for assessing the condition of individual elements. A detailed discussion of the construction, operating parameters, and principles of selecting used components can be found in the article: Standard vs. sport suspension – differences in construction and is it worth buying used suspension parts?. Reading the material allows you to better plan the repair, consciously select parts, and optimize service costs while maintaining an appropriate level of safety.