Gearbox Mount Audi A4 B8 A5 8T Transmission Support Bracket 8K0399115R

Gearbox Mount Audi A4 B8 A5 8T Transmission Support Bracket is an original Audi mounting component designed to provide stable support for the transmission assembly and ensure proper integration with the powertrain mounting system. Its precise geometry and factory-engineered design ensure correct load distribution, vibration reduction, and optimal performance of the drivetrain during daily operation.

Specifications and technical data

• SKU: 8K0399115R
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0399115R
• Substitutable numbers: 8K0399115R, 8K0 399 115 R
• Category: Engine Mounts

Purpose and function of the component

The bracket, also referred to as a transmission mount or support, is responsible for securely mounting the gearbox to the chassis and working in conjunction with other powertrain support points. A correctly selected and installed component:

• maintains the proper position of the gearbox relative to the engine and chassis,
• limits unwanted movement of the powertrain during acceleration and engine braking,
• supports the vibration damping system, contributing to ride comfort and drivetrain refinement,
• ensures proper operating conditions for CV joints, drive shafts, and other drivetrain components.

Thanks to its factory design, the bracket is optimized for the loads encountered in Audi A4 B8 and Audi A5 8T models, which translates into consistent performance of the entire drivetrain.

Design and fitment for Audi

This bracket belongs to the group of mounting components in the Engine mounts category, which work with the powertrain mounting system in Audi vehicles. Using an original Audi design means:

• retaining factory mounting points on the chassis and gearbox,
• proper fitment with other structural components,
• no need for vehicle modifications during replacement,
• compliance with factory dimensional tolerances.

Such fitment facilitates installation and helps maintain drivetrain performance parameters in accordance with manufacturer specifications, which is particularly important for the precisely tuned suspension and drivetrain systems in Audi A4 B8 and A5 8T models.

Performance characteristics and benefits

Using an original gearbox mount in place of a worn or damaged component helps restore proper drivetrain operating conditions. In practice, this means:

• reduction of unwanted vibrations transmitted to the chassis and vehicle interior,
• more stable powertrain behavior during load changes,
• reduced risk of excessive wear on CV joints, drive shafts, and mounting hardware,
• maintenance of proper drivetrain geometry, which promotes the longevity of other components.

For the user, this translates into more predictable vehicle behavior, better ride comfort, and reduced stress on associated sub-assemblies.

Condition and service application

The item comes from an operational vehicle and is offered as a used part, providing an attractive service solution for drivers looking for an economical yet original alternative to new components. The bracket is suitable for both standard replacement of worn gearbox mounting elements and for post-collision repairs or drivetrain upgrades in Audi A4 B8 and Audi A5 8T models.

Related components and additional technical information

When working on the powertrain mounting area, it is worth paying attention to other elements in the Engine mounts group, such as other engine and transmission support points or additional brackets. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other parts from the same group, such as additional mounts, brackets, or fasteners, check out the available parts in the Audi engine mounts category.

If you are interested in the broader context of drivetrain operation and the impact of auxiliary components on vehicle maintenance, it is worth reading the material discussing the exhaust gas recirculation system and the selection of used components – details can be found in the article EGR: what it is and why it is worth considering used EGR valves.

If you are planning more extensive work on the drivetrain, including the gearbox itself, practical tips regarding the cost-effectiveness of purchasing second-hand parts may be helpful – this issue is discussed in the guide Used gearbox – when is it worth it and what you need to remember.