Audi A4 B9 8W Q5 FY 2.0 TFSI Transfer Box Case Automatic DSG 0CJ409431C WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Audi A4 B9 8W Q5 FY 2.0 TFSI Transfer Box Case Automatic DSG is a drivetrain component designed for Audi vehicles, compatible with DSG automatic transmissions. It enables efficient torque distribution to the vehicle's axles, ensuring stable handling and predictable drivetrain performance during daily operation.

Specifications and technical data

• SKU: 0CJ409431G
• Mark: Audi
• Condition: Used
• OEM Part Number: 0CJ409431G
• Substitutable numbers: 0CJ409431G, 0CJ409431C, 0CJ 409 431 C, 0CJ409431D, 0CJ 409 431 D
• Gearbox type: Automatic
• Category: Transfer Cases

Purpose and function in the drivetrain

The presented transfer box with a reduction gear is dedicated to Audi models equipped with a 2.0 TFSI engine and an automated dual-clutch transmission. It is responsible for the precise transfer of power from the automatic transmission to the subsequent drivetrain components, which is crucial for traction, stability, and the smooth operation of the entire drive system.

Thanks to a design adapted for use with an automatic transmission, this component allows for maintaining consistent operation of the transmission control system, traction control systems, and power distribution to the appropriate vehicle axles.

Benefits of using an original Audi transfer box

Using an original component from the Transfer boxes group in Audi vehicles results in:

• maintaining factory drivetrain operating parameters,
• proper cooperation with the DSG automatic transmission,
• consistency with factory control software,
• appropriate load transfer under typical road conditions.

This solution is particularly recommended for repairs where the priority is to maintain driving characteristics close to factory standards and to minimize the risk of compatibility issues.

Technical characteristics and compatibility

The component has been designed to work with an automatic transmission, which means it is adapted both mechanically and in terms of torque transfer methods. The design of the transfer box with a reduction gear is optimized for operation with a dual-clutch shifting system, ensuring smooth power delivery and adequate durability under typical operating conditions.

When selecting parts, it is worth paying attention to compatibility with the specific drive version and vehicle configuration to ensure proper mechanical fitment and trouble-free installation.

Condition, verification, and use in repairs

The offered transfer box comes from the used parts segment, which allows for cost-effective repairs while maintaining the original component design. This type of solution is often chosen for major drivetrain failures when repairing or regenerating the existing unit is uneconomical or technically difficult.

If you are considering installing a used component in your drivetrain, it is worth checking out a guide discussing the cost-effectiveness of such solutions, the differences between manual and automatic transmissions, and compatibility issues – this is described in detail in the article Used gearbox – when is it worth it and what you need to remember.

Support in selecting and upgrading the Audi drivetrain

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other elements from the same group, such as additional reduction gears, intermediate gears, or other torque distribution components, check the available parts in the Audi transfer boxes category.

For a broader perspective on selecting used components for popular car models, including Audi vehicles, the aftermarket guide may also be helpful: The best used car parts – a guide to the most frequently chosen original parts.