Genuine OEM Volkswagen Synchronizer Ring Set, part number 0B7311197B. These rings are essential components within the transmission, responsible for synchronizing the speed of the gear to be engaged with the speed of the output shaft, enabling smooth and quiet gear changes. They are typically found in the gearbox assembly, working in conjunction with synchronizer sleeves. Manufactured to precise specifications, genuine OEM synchronizer rings ensure proper engagement and reduce wear on other transmission components. Their exact material composition and surface treatment are critical for the longevity and smooth operation of the gearbox.