Audi S4 B8 S5 8T Automatic Gearbox Centre Differential Housing 0B4301213E

The Audi S4 B8 S5 8T Center Differential Housing is an original part from the Automatic Transmission Parts group, designed for the drivetrains of Audi's premium models. The robust construction of this housing ensures stable mounting of the center differential and proper cooperation with other automatic transmission components, which translates to predictable torque distribution and safe drive operation.

Specifications and technical data

• SKU: 0B4301213E
• Mark: Audi
• Condition: Used
• OEM Part Number: 0B4301213E
• Substitutable numbers: 0B4301213E, 0B4 301 213 E
• Gearbox type: Automatic
• Category: Automatic Transmission Parts

Purpose and Function in the Drivetrain

The center differential housing in the Audi S4 B8 and S5 8T is responsible for precise guidance of the differential elements and maintaining the correct geometry of the meshing gears. In an automatic transmission, this is a key component for:

• maintaining the axial alignment of the shafts and the differential cage,
• ensuring proper working clearances between transmission elements,
• correctly distributing drive between the vehicle's axles,
• maintaining the seal and stability of the entire central module.

Thanks to its factory geometry, the housing allows for maintaining operating parameters as intended by the manufacturer, which is important for both standard operation and dynamic driving typical of the S versions.

Benefits of Using an Original Housing

Using an original center differential housing in an Audi drivetrain offers a range of practical service and operational benefits:

• Factory Fitment – maintaining proper alignment with the automatic transmission casing and other drive components.
• Stable differential operation – reducing the risk of excessive vibrations, noise, and accelerated gear wear.
• Simplified diagnostics and installation – construction compliant with Audi service documentation, simplifying workshop procedures.
• Ability to use existing mounting points and seals – without the need for modifications or adaptations.

For workshops specializing in automatic transmission repairs, this means predictable assembly time and a lower risk of post-assembly issues.

Application in Audi Automatic Transmissions

The housing is designed to work with the automatic transmission used in the sporty Audi S4 B8 and S5 8T versions. In practice, it serves as a support for the center differential, which is responsible for distributing torque between the vehicle's axles in advanced all-wheel-drive systems.

When repairing this area, it is particularly important to maintain the housing's appropriate rigidity and manufacturing precision, as any deviations can result in:

• uneven wear of transmission components,
• deterioration of gear shifting smoothness,
• increased noise and vibrations in the drivetrain.

Choosing an original component allows for maintaining the transmission's operating characteristics in line with the manufacturer's specifications, which is important for both comfort and the durability of the entire system.

Product Characteristics and Condition

The presented housing belongs to the Automatic Transmission Parts group for Audi and comes from a dismantled vehicle. This means it is a used part, but it retains the structural parameters required for further operation after proper installation and the use of new consumables (seals, oil, assembly elements in accordance with service procedures).

Before installation, standard workshop verification is recommended, including checking mating surfaces, threads, and bearing and seal seating points, to ensure trouble-free transmission operation after assembly.

Support with Selection and Additional Materials

When planning drivetrain repairs, it is advisable to verify the housing's compatibility with the specific transmission version and vehicle year, using the OEM part number and interchangeable numbers available in the specifications section. If in doubt, it is a good idea to compare the part with the one currently installed in the vehicle or consult a service specializing in Audi automatic transmissions.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other parts from the same group, such as casings, covers, or transmission mounting elements, check the available parts in the Audi Automatic Transmission Parts category.

For a broader perspective on the use of dismantled parts in vehicle repairs, including principles of selecting original components and service procedures, the article: Body and Chassis – Accident Repairs Using Dismantled Parts, which discusses a practical approach to using used OEM parts in professional service, may be helpful.