The Genuine Porsche Engine Crankcase Breather Hose (part number 95510724700) is a high-quality replacement hose for the crankcase ventilation system in Porsche vehicles. This hose is specifically designed for use in the Porsche 955 model and is made from durable materials to ensure long-lasting performance. It connects the engine crankcase to the air intake system, allowing excess pressure and gases to be vented out of the engine. This helps to prevent buildup of pressure and potential damage to the engine. This breather hose is an essential component for maintaining the proper functioning of the engine and should be replaced if it becomes damaged or worn.