Audi R8 Driveshaft Output Shaft Rear Right O/S 420501203

Audi R8 Driveshaft Output Shaft Rear Right O/S is a precision drivetrain component, designed specifically for the rear axle on the right side. The original Audi design ensures stable torque transmission, which translates into confident handling, predictable traction, and safe operation of the entire drivetrain. This is a solution for users who are looking for a factory-fitted component rather than random aftermarket replacements.

Specifications and technical data

• SKU: 420501203
• Mark: Audi
• Condition: Used
• OEM Part Number: 420501203
• Substitutable numbers: 420501203, 420 501 203
• Location on the vehicle: Rear, Right
• Part type: Driveshaft
• Category: Driveshafts

Purpose and function in the drivetrain

The described output shaft is a component of the Driveshafts category and operates in the rear part of the vehicle, on the right side. It is responsible for transferring drive from the transmission to other drivetrain components, maintaining proper geometry and connection rigidity. A correctly selected component in this location reduces unwanted play, vibrations, and uneven loads, which is important for both driving comfort and the durability of other drivetrain components.

The location on the vehicle (rear, right side) is crucial when selecting parts – using the correct element on the appropriate side allows maintaining factory operating parameters of the system, including correct joint operating angles and even distribution of forces in the drivetrain.

Benefits of using an original Audi component

Choosing an original Audi output shaft for the R8 allows maintaining the structural consistency of the entire drivetrain. Thanks to this:

• factory torque transmission characteristics are maintained,
• the risk of premature wear of joints, bearings, and mounts is reduced,
• it is easier to diagnose potential future faults, as the system is based on components with known specifications,
• compatibility with factory Audi service procedures is ensured.

An element from this group, even in used condition, remains an attractive alternative to cheaper replacements because it retains the original geometry, material quality, and processing method intended by the vehicle manufacturer.

Selection and installation in the rear right part of the vehicle

When selecting an output shaft for the Audi R8, it is crucial to verify compatibility with the specific drivetrain version and the car's model year based on the OEM part number and interchangeable numbers available in the technical specification. This allows avoiding installation problems and ensures proper fitment with the differential, half-shafts, and other elements of the rear drivetrain.

During installation, it is worth paying attention to:

• correct positioning of the element relative to the vehicle axis,
• checking the condition of cooperating joints and bearings,
• using appropriate tightening torques in accordance with Audi service documentation,
• checking for any play after installation, especially during load changes.

Such an approach minimizes the risk of later vibrations, knocking, or uneven wear of tires and suspension components, and the output shaft itself can operate stably for a long time.

Condition, origin, and practical application

The presented output shaft is a used part, which in the case of original Audi components often represents a reasonable compromise between cost and quality. An element of this type, sourced from dismantling, retains the factory material and structural specifications, and with proper installation, it can work seamlessly with the existing drivetrain, even in vehicles operated dynamically.

This solution is particularly interesting for Audi R8 owners who:

• are rebuilding a car after mechanical damage in the rear drivetrain area,
• want to restore factory operating parameters after modifications or failure,
• are looking for an economical, yet original component instead of uncertain replacements.

Technical support and additional materials

When working on the drivetrain, it is worth looking more broadly at the entire clutch assembly, dual-mass flywheel, and drivetrain elements to avoid a situation where a new or used component works with heavily worn parts. A detailed discussion of diagnostics and selection of drivetrain elements, including used parts, can be found in the article: Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain.

If you are planning a comprehensive repair or upgrade of the drivetrain zone in your Audi and need other elements from the same group, such as additional shafts, half-shafts, or intermediate elements, check the available parts in the Audi Driveshafts category.

Summary

Audi R8 Driveshaft Output Shaft Rear Right O/S is a technically matched, original component from the Driveshafts group, intended for operation in the rear right part of the vehicle. Properly selected and installed, it allows maintaining drivetrain stability, reducing vibrations, and keeping handling characteristics in line with the manufacturer's assumptions. It is a practical choice for users who expect consistency with the factory Audi design and consciously opt for original solutions in the drivetrain.