AMCC 4x4 4WD Vacuum Solenoid Purge Valve Hub Locking Solenoid Compatible with Ford F-150 1997-2004 Replaces：9L14-9H465-BA 6L3Z-9H465A 9L149H465BA 【COMPATIBLE】This Vacuum Vapor Canister Purge Solenoid compatible for a variety of Ford, including 1997 1998 1999 2000 2001 2002 2003 2004 Ford F-150, Please see the detail description to know more models 【REPLACE PART NUMBERS】9L14-9H465-BA, 6L3Z-9H465-A, 6L3Z9H465A, E8AZ9H465A, MDT26760 Vapor Canister Purge Solenoid Valve, please check OEM part number and compatibility before purchase it 【HOW TO WORKS】Sealing the fuel tank is not as simple as it sounds. For one thing, a fuel tank must have some type of venting so air can enter to replace fuel as the fuel is sucked up the fuel pump and sent to the engine. If the tank were sealed tight, the fuel pump would soon create enough negative suction pressure inside the tank to collapse the tank. On older Vacuum Solenoid Purge Valve systems, the tank is vented by a spring-loaded valve inside the gas cap. On newer vehicles, it is vented through the Vacuum Solenoid Purge Valve 【EASY INSTALLATION】Direct installation - Direct replacement for a proper fit and easy installation, quality materials used for long lasting durability.Other way,you could also see a YouTube for a reference AMCC products are guaranteed for one year after sale，100% inspection and testing prior to shipment