Prevents the P04DB Check Engine Light: This vent tube easily inserts into the vent fitting on the factory tube to assure the ideal amount of vacuum is pulled after the installation of an aFe POWER air intake system. Refer to the air intake systems installation manual for correct installation. Nylon Construction: This vent tube is made out of nylon for durability and easy installation. Direct aFe POWER Replacement: This product is designed to directly replace the vent insert on aFe POWER cold air intake systems for the 2016- 19 Ford F-150 with the 2. 7L and 3. 5L V6 Ecoboost. Direct Replacement for P/N 05-01405. Note: aFe POWER does not recommend the use of this vent tube with any other air intake systems.