The Genuine BMW Crankcase Vent Hose - 11127850244 is a high-quality replacement hose for the crankcase ventilation system in BMW vehicles. This hose is designed to effectively remove excess gas and oil vapors from the engine crankcase, preventing them from escaping into the atmosphere. It is made from durable materials to withstand high temperatures and resist wear and tear. This hose is an exact fit for the original part and is manufactured to BMW's strict standards for quality and performance. It is compatible with various BMW models and is an essential component for maintaining the proper functioning of the engine.