Genuine OEM Volkswagen Vacuum Hose, part number 022133778C. This hose is a critical component of the engine's vacuum system, responsible for transmitting vacuum pressure to various actuators and sensors. Proper functioning of this hose is essential for maintaining correct air-fuel mixture and engine performance. The material is designed to withstand engine bay temperatures and resist degradation. Genuine OEM hoses are manufactured to precise specifications for fitment and material integrity, ensuring reliable vacuum control and engine operation.