PCV Hoses allows crankcase pressure to escape the engine in a controlled manor. Plus, now with Dorman's PCV Valve Hoses you can replace just the hose, without the expense and hassle of installing a complete PCV Hose assembly, saving time, money and labor. Product Features:Constructed of high quality materials for long lasting useDirect replacement for a proper fit every timeEasy to installManufactured to strict engineering quality standards