Constructed of high quality materials for long lasting useDirect replacement for a proper fit every timeEasy to installManufactured to strict engineering quality standardsOE Number: 4854265PCV Hoses allow crankcase pressure to escape the engine in a controlled manor. 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.