AMCC Crankcase PVC Vent Hose Compatible with BMW 135i 335i 535i 640i X1 X3 X4 X5 X6 2011 2012 2013 2014 2015 2016 2017 N55 Crankcase Vent Hose PCV BMW Crankcase Breather Hose Replace:1112 7584128 [Reference Number]:11127584128 [Fitments] 11127584128 for 2011 2012 2013 335i for 2011-2014 2015 2016 535i , for 135i, 135is, 335i xDrive, 535i, 535i GT, 535i GT xDrive, 535i xDrive, 640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe, ActiveHybrid 5, X1, X3, X4, X5, X6 | Please confirm the compatility model before ordering [Excellet Quality] 11127584128 for bmw n55 crankcase vent hose Made of high quality materials, prevent the leakage of Incomplete combustion oily exhaust gas from the system and cause the surrounding parts to be corroded, aging and air pollution, protect the oil in the crankcase from deteriorating, reduce the icing phenomenon at the PCV valve hose in winter. [Powerful Function] N55 pcv hose with advanced design, this 11127584128 crankcase Vent Hose draws the air into the cylinder, generates eddy current when inflating, increasing the mixing degree of air and gasoline, and is beneficial to improve combustion efficiency [Easy Installation] crankcase vent hose installation is super easy. Direct fitment and perfect replacement valve cover, no modification, cutting, or drilling required, meets or exceeds standards AMCC products are guaranteed for one year after sale，100% inspection and testing prior to shipment