Genuine OEM Volkswagen transmission mount brace, part number 3D0399403A. This brace is a structural component that reinforces the transmission mounts, helping to absorb and dampen vibrations from the drivetrain. It is positioned in the transmission assembly. Manufactured from high-strength steel to provide robust support and maintain the integrity of the transmission mounting system. Genuine OEM braces ensure precise fitment and the correct material properties to prevent premature failure and maintain smooth operation.