Audi A5 8T Suspension Leg Rear Left N/S Wheel Carrier Output Shaft Brake Disc

Audi A5 8T Suspension Leg Rear Left Knuckle Disc Caliper Driveshaft is a complete, used set of rear suspension components designed for the left-hand drive axle. The set includes key components responsible for wheel guidance, power transmission, and cooperation with the braking system, allowing for a cohesive, technically correct replacement of the entire module. By maintaining the factory geometry and construction of original Audi solutions, the element perfectly fits the design assumptions of the A5 8T model.

Specifications and technical data

• SKU: 8K0505431AR-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0505431AR
• Substitutable numbers: 8K0505431AR, 8K0 505 431 AR, 8K0501203M, 8K0 501 203 M, 8K0615403E, 8K0 615 403 E, 8K0615601B, 8K0 615 601 B
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and Function in the Drivetrain

The presented set belongs to the group of Suspension Replacement Kits and is intended for installation on the rear axle on the left side. It includes the suspension leg with the knuckle, components cooperating with the braking system (disc, caliper), and driveshafts, allowing for the restoration of the full functionality of the wheel connection to the body and drivetrain.

A set configured in this way is particularly useful for repairs after collisions, mechanical damage, or advanced wear of guiding and bearing elements, when replacing individual parts is less effective than installing the entire module.

Benefits of Using a Complete Kit

Using a complete suspension leg with accessories offers a number of practical advantages:

• structural consistency of all elements within a single module,
• reduced risk of incorrect selection of individual parts,
• easier rear axle geometry alignment after repair,
• shorter assembly time compared to replacing many separate components.

For workshops and users, this means a more predictable repair outcome and stable vehicle handling in the rear axle area, which translates to safer car behavior on the road.

Product Characteristics and Compatibility

The element comes from the Audi group, ensuring the maintenance of factory operating parameters for the suspension and braking system. The design of the rear, left suspension module has been developed to properly transfer longitudinal and transverse loads, as well as to ensure correct cooperation with the vehicle's safety systems.

Its placement on the vehicle limits the risk of selection errors – it is a dedicated set for the rear left side, which is important for both geometry and the routing of cables and mountings. This ensures an organized installation process, and the individual mounting points retain their factory position.

Condition and Application in Repairs

The product is used, allowing for economical vehicle repair while maintaining the original construction. This type of solution is particularly attractive for larger repair jobs, when replacing the entire suspension module with braking and drivetrain elements is more cost-effective than purchasing new parts broken down into individual components.

In workshop practice, a complete suspension leg with a driveshaft, disc, and caliper facilitates the restoration of correct drivetrain operation after damage, while also reducing the number of dismantling and assembly operations.

Repair Extension and Selection of Related Components

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Audi and need other parts from the same group, such as additional arms, mountings, or complete axle modules, check the available parts in the Audi Suspension Replacement Kits category.

When deciding to use used components, it is worth understanding the broader economic and technical context of such a solution – especially in the premium brand segment. You can find more information on the cost-effectiveness of using original dismantled parts in the article Used Parts for Mercedes – Original Dismantled Parts, which discusses the approach to selecting and operating such elements in higher-class cars.