Genuine OEM Audi Gearbox Housing, part number 0AZ301315. This housing serves as the main structural component that encloses and protects the internal gears, bearings, and other parts of the gearbox. It is precision-engineered to maintain the alignment of rotating components and to contain the lubricating fluid. Constructed from robust cast metal, it provides essential protection against external impacts and environmental factors. Genuine OEM housings are critical for maintaining the integrity and longevity of the transmission.