Genuine OEM Volkswagen Gearbox Switch Unit, part number 02Z301230J. This complex assembly is responsible for controlling various functions within the vehicle's transmission, facilitating smooth and accurate gear changes. It integrates both mechanical and electrical components to translate driver input into gearbox actions. Weighing approximately 1.118 kg, this unit is a substantial part of the transmission system. Opting for a genuine OEM gearbox switch unit guarantees precise factory calibration and durable construction for optimal transmission performance and longevity.